Journal

Heterostructured Mo2N–Mo2C nanoparticles coupled with N-doped carbonized wood to accelerate the hydrogen evolution reaction

Jangwon Bang, In Kyu Moon, Young-Kwang Kim and Jungwoo Oh *

Small Structures (2023.08) DOI Cover Picture

Catalytic Nickel-silicide as an Alternative to Noble Metals in Metal-assisted Chemical Etching 

K Kim, S Choi, H Bong, H Lee, M Kim, J O‡ These authors made equal contributions

Nanoscale (2023.08) DOI

Three-dimensional multimodal porous graphene-carbonized wood for highly efficient solar steam generation 

J Bang, IK Moon, J Oh

Sustainable Energy Technologies and Assessments 57, 103199 (2023.06) DOI

Energy band offsets of BeO dielectrics grown via atomic-layer deposition on ß-Ga2O3 substrates 

D Jung, Y Jang, PR Sultane, CW Bielawski, J Oh* 

Journal of Alloys and Compounds, 922, 166197 (2022.07) DOI

Polarization-Induced Two-Dimensional Electron Gas at BeO/ZnO Interface

Y Jang, D Jung, PR Sultane, CW Bielawski, J Oh*

Applied Surface Science, 154103 (2022.06) DOI

Phase-engineering terraced structure of edge-rich α-Mo2C for efficient hydrogen evolution reaction

J Bang, IK Moon, K Choi, J Oh*

Materials Today Energy, 100981 (2022.06) DOI

Low Temperature Growth of Beryllium Oxide Thin Films Prepared via Plasma Enhanced Atomic Layer Deposition 

Y Jang, D Jung, PR Sultane, ES Larsen, CW Bielawski, J Oh*

Applied Surface Science, 572,   151405 (2022.01) DOI

Fully wood-based green triboelectric nanogenerators

J Bang, IK Moon, YP Jeon, B Ki, J Oh*

Applied Surface Science 567, 150806 (2021.11) DOI

Mesoporous ZnCo2O4 nanowire arrays with oxygen vacancies and N-dopants for significant improvement of non-enzymatic glucose detection

DS Kim, IK Moon, JH Yang, K Choi, J Oh*, SW Kim*

Journal of Electroanalytical Chemistry 878, 114585 (2020.12) DOI

Enhanced photoelectrochemical efficiency and stability using nitrogen-doped TiO2 on a GaAs photoanode

Keorock Choi, Jangwon Bang, In kyu Moon, Kyunghwan Kim, Jungwoo Oh*

Journal of Alloys and Compounds 843, 155973  (2020.11) DOI

Chemical Carving Lithography with Scanning Catalytic Probes

Bugeun Ki, Kyunghwan Kim, Keorock Choi, Jungwoo Oh*

Scientific Reports 10, 13411  (2020.08) DOI

Ultralow Optical and Electrical Losses via Metal-assisted Chemical Etching of Antireflective Nanograss in Conductive Mesh Electrodes

Kyunghwan Kim, Bugeun Ki, Haekyun Bong, Keorock Choi, Jungwoo Oh*

Advanced Optical Materials 8 (15), 2000143  (2020.08) DOI

Three-Dimensional Porous Stretchable Supercapacitor with Wavy Structured PEDOT:PSS/Graphene Electrode

In Kyu Moon, Bugeun Ki, Jungwoo Oh*

Chemical Engineering Journal 392, 123794 (2020.07) DOI

Electrochemical Local Etching of Silicon in Etchant Vapor

Bugeun Ki, Keorock Choi, Kyunghwan Kim, Jungwoo Oh*

Nanoscale 12, 6411 – 6419 (2020.03) DOI

Band alignment of BeO gate dielectric grown by atomic-layer deposition on AlGaN/GaN HEMTs

Seung Min Lee, Do Hwan Jung, Seonno Yoon, Yoonseo Jang, Jung Hwan Yum, Eric S. Larsen, Christopher W. Bielawski, Jungwoo Oh*

Applied surface science 505, 144107 (2020.03)   DOI

Improved dielectric properties of BeO thin films grown by plasma enhanced atomic layer deposition

Yoonseo Jang, Seung Min Lee, Do Hwan Jung, Jung Hwan Yum, Eric S.Larsen, Christopher W. Bielawski, Jungwoo Oh*

Solid-State Electronics 163, 107661 (2020.01) DOI

Anodic Imprint Lithography: Direct Imprinting of Single Crystalline GaAs with Anodic Stamp

Kyunghwan Kim, Bugeun Ki, Keorock Choi, Jungwoo Oh*

ACS Nano 13 (11), 13465-13473  (2019.11)  DOI

Crystal Properties of Atomic-Layer Deposited Beryllium Oxide on Crystal and Amorphous Substrates 

Seung Min Lee, Yoonseo Jang, Jung Hwan Yum, Eric S. Larsen, Woo Chul Lee, Seong Keun Kim, Christopher W. Bielawski, Jungwoo Oh*

Semiconductor Science and Technology 34, 115021 (2019.11) DOI

Polarization Modulation Effect of BeO on AlGaN/GaN High-Electron-Mobility Transistors

Weijie Wang, Seung Min Lee, Sara Pouladi, Jie Chen, Shahab Shervin, Seonno Yoon, Jung Hwan Yum, Eric S. Larsen, Christopher W. Bielawski, Bikramjit Chatterjee, Sukwon Choi, Jungwoo Oh*, Jae-Hyun Ryou*

Applied Physics Letters 115, 103502 (2019.09) DOI

Subwavelength photocathodes via metal-assisted chemical etching of GaAs for solar hydrogen generation

Keorock Choi, Kyunghwan Kim, In Kyu Moon, Jangwon Bang, Jungwoo Oh 

Nanoscale 11 (32), 15367-15373 (2019.08) DOI

Crystalline beryllium oxide on Si (100) deposited using E-beam evaporator and thermal oxidation 

Seonno Yoon, Seung Min Lee, Jung Hwan Yum, Christopher W. Bielawski, Hi-Deok Lee, Jungwoo Oh*

Applied Surface Science 479, 803-809 (2019.06) DOI

Domain epitaxy of crystalline BeO films on GaN and ZnO substrates

S. M. Lee, J. H. Yum, E. S. Larsen, S. Shervin, W. Wang, J.‐H. Ryou, W. Bielawski, W. C. Lee, S. K. Kim, J. Oh*

Journal of the American Ceramic Society 102 (6), 3745—3752 (2019.06) DOI

Crystalline BeO grown on 4H-SiC via atomic layer deposition: Band alignment and interface defects

Seung Min Lee, Yoonseo Jang, Jongho Jung, Jung Hwan Yum, Eric S. Larsen, Sang Yeon Lee, Hyungtak Seo, Christopher W. Bielawski, Hi-Deok Lee, Jungwoo Oh*

ACS Applied Electronic Materials 1 (4), 617-624 (2019.04) DOI

Resist-Free Direct Stamp Imprinting of GaAs via Metal-Assisted Chemical Etching 

Kyunghwan Kim, Bugeun Ki, Keorock Choi, Seungmin Lee, Jungwoo Oh*

ACS Applied Materials & Interfaces 11  (14), 13574–13580 (2019.04) DOI (Cover)

Atomic-layer deposition of crystalline BeO on SiC

Seung Min Lee, Yoonseo Jang, Jongho Jung, Jung Hwan Yum, Eric S. Larsen, Weijie Wang, Jae-Hyun Ryou, Hyun-Seop Kim, Ho-Young Cha, Christopher W. Bielawski, Jungwoo Oh*

Applied Surface Science 469, 634-640 (2019.03) DOI

Evaluation of electroless Pt deposition and electron beam Pt evaporation on p-GaAs as a photocathode for hydrogen evolution 

Keorock Choi, Kyunghwan Ki, In kyu Moon, Ilwhan Oh, Jungwoo Oh*

ACS Applied Energy Materials 2 (1), 770–776 (2019.01) DOI

An efficient amplification strategy for N-doped NiCo2O4 with oxygen vacancies and partial Ni/Co-nitrides as a dual-function electrode for both supercapatteries and hydrogen electrocatalysis

Keorock Choi, In Kyu Moon, Jungwoo Oh*

Journal of Materials Chemistry A 7 (4), 1468-1478 (2019.01) DOI    (Inside Front Cover )

Remarkable Enhancement of Electrochemical Performance by the Oxygen Vacancy and Nitrogen Doping in ZnCo2O4 Nanowire Arrays 

IK Moon, S Yoon, B Ki, K Choi, J Oh* 

ACS Applied Energy Materials 1 (9), 4804-4813 (2018.09) DOI

Chemical Imprinting of Crystalline Silicon with Catalytic Metal Stamp in Etch Bath

Bugeun Ki, Yunwon Song, Keorock Choi, Jung Hwan Yum, Jungwoo Oh* 

ACS Nano 12 (1), 609-616  (2018.01) DOI

Epitaxial ZnO gate dielectric deposited by RF sputter for AlGaN/GaN high electron mobility transistors 

Seonno Yoon, Seungmin Lee, Hyun-Seop Kim, Ho-Young Cha, Hi-Deok Lee, Jungwoo Oh* 

Semiconductor Science and Technology 33 (1), 1-7 (2018.01) DOI

Atomic-Layer Deposition of Single-Crystalline BeO Epitaxially Grown on GaN Substrates 

Seung Min Lee, Jung Hwan Yum, Eric S. Larsen, Woo Chul Lee, Seong Keun Kim, Christopher W. Bielawski, Jungwoo Oh* 

ACS Applied Materials & Interfaces 9 (48), 47973-71979 (2017.12) DOI

Three-dimensional Flexible All-Organic Conductors for Multifunctional Wearable Applications 

In Kyu Moon, Seonno Yoon, Hee Uk Lee, Seuong Wook Kim*, Jungwoo Oh* 

ACS Applied Materials & Interfaces 9 (46), 40580-40592 (2017.11) DOI

3D Highly Conductive Silver Nanowire@ PEDOT: PSS Composite Sponges for Flexible Conductors and Their All‐Solid‐State Supercapacitor Applications 

In Kyu Moon, Seonno Yoon, Jungwoo Oh* 

Advanced Materials Interfaces 4 (22),  1700860 (2017.11) DOI

Advanced Silicon-on-Insulators: Crystalline Silicon on Atomic Layer Deposited Beryllium Oxide 

Seung Min Lee, Jung Hwan Yum, Eric S. Larsen, Woo Chul Lee, Seong Keun Kim, Christopher W. Bielawski, Jungwoo Oh* 

Scientific Reports 7 (1), 13205 (2017.10) DOI

Nanostructured GaAs solar cells via metal-assisted chemical etching of emitter layers 

Yunwon Song, Keorock Choi, Dong-Hwan Jun, Jungwoo Oh* 

Optics Express 25(20), 23862-23872 (2017.10) DOI

Nano/Micro dual-textured antireflective subwavelength structures in anisotropically etched GaAs 

Kyunghwan Kim, Yunwon Song, Jungwoo Oh 

Optics Letters 42 (16), 3105-3108 (2017.08) DOI

Nonlinear Etch Rate of Au-Assisted Chemical Etching of Silicon 

Keorock Choi,  Yunwon Song, Bugeun Ki, Jungwoo Oh*

ACS Omega 2 (5), 2100-2105 (2017.05) DOI

Evaluation of titanium disilicide/copper Schottky gate for AlGaN/GaN high electron mobility transistors

Seonno Yoon, Seung Min Lee, Jeyoung Kim, Hi-Deok Lee, Ho-Young Cha, Jungwoo Oh*

Semiconductor Science and Technology 32 (3),  (2017.03) DOI

Three-Dimensional Hierarchically Mesoporous ZnCo2O4 Nanowires Grown on Graphene/Sponge Foam for High Performance Flexible All‐Solid‐State Supercapacitors

In Kyu Moon, Seonno Yoon, Jungwoo Oh*

Chemistry-A European Journal 23 (3), 597-604 (2017.01) DOI

Nano/micro double texturing antireflective subwavelength structures on inverted pyramids using metal-assisted chemical etching

Yunwon Song, Kyungwhan Kim, Keorock Choi, Bugeun Ki, Jungwoo Oh*

Solar Energy 135, 291-296 (2016.10) DOI

Phosphorus implantation into in-situ doped Ge-on-Si for high light-emitting efficiency 

Jiwoong Baek, Bugeun Ki, Daeik Kim, Chulwon Lee, Donguk Nam, Yong-Hoon Cho, Jungwoo Oh 

Optical Materials Express 6 (9), 2939-2949 (2016.09) DOI

Lateral photovoltaic effect in flexible free-standing reduced graphene oxide film for self-powered position-sensitive detection 

In Kyu Moon, Bugeun Ki, Seonno Yoon, Jungwoo Oh* 

Scientific Reports 6, 33525 (2016.09) DOI

Thermally induced tensile strain of epitaxial Ge layers grown by a two-step e-beam evaporation process on Si substrates

Bugeun Ki, Kyung Ho Kim, Hyungjun Kim, Chulwon Lee, Yong-Hoon Cho, Jungwoo Oh*

Journal of Nanoscience and Nanotechnology 16 (5), 5239-5242 (2016.05) DOI

Localized TiSi and TiN phases in Si/Ti/Al/Cu Ohmic Contacts to AlGaN/GaN Heterostructures

Seonno Yoon, Yunwon Song, Seung Min Lee, Hi-Deok Lee, Jungwoo Oh*

Semiconductor Science and Technology 31 (5), 055002 (2016.03) DOI

Interfacial AlN formation of Si/Ti/Al/Cu Ohmic contact for AlGaN/GaN high-electron-mobility transistors

Seonno Yoon, Jangwon Bang, Hi-Deok Lee, Jungwoo Oh*

Microelectronic Engineering 151, 60-63 (2016.02) link

Fabrication of three-dimensional GaAs antireflective structures by metal-assisted chemical etching

Yunwon Song, Jungwoo Oh*

Solar Energy Materials and Solar Cells 144, 159-164 (2016.01) DOI

The impact of gate to drain spacing on hot-carrier degradation in sub-100nm Ni-Pt salicidation FinFETs 

Seung Min Lee, Hi-Deok Lee, Injo Ok, Jungwoo Oh*

Solid State Electronics 114, 167-170 (2015.12) DOI

Highly elastic and conductive N-doped monolithic graphene aerogels for multifunctional applications

In Kyu Moon, Seonno Yoon, Kyeong-Yong Chun, Jungwoo Oh*

Advanced Functional Materials 25 (45), 6976-6984 (2015.12) DOI (Inside Front Cover)

Microstructural Characterization of Au-free Si/Ti/Al/Cu Ohmic Contacts in an AlGaN/GaN Heterostructure

Seonno Yoon, Jangwon Bang, Yunwon Song, Jungwoo Oh*

Thin Solid Films 590, 335-339 (2015.08) DOI

Catalyst Feature Independent Metal-Assisted Chemical Etching of Silicon

Keorock Choi, Yunwon Song, Ilwhan Oh, Jungwoo Oh*

RSC Advances 5 (93), 76128-76132 (2015.05) DOI

Au‐free Si MOS compatible Ni/Ge/Al ohmic contacts to n+‐InGaAs

Jungwoo Oh*, Seonno Yoon, Bugeun Ki, Yunwon Song, Hi‐Deok Lee

Physica Status Solidi (A) 212 (4), 804-808 (2015.04) DOI


Controlled Tensile Strain of Ge Films Hetero-Epitaxially Grown on Si Substrates Using E-Beam Evaporator

Bugeun Ki, Kyung Ho Kim, Jungwoo Oh*

ECS Solid State Letters 4 (1), P12-P14 (2015.01) DOI

Thermally Driven Metal-Assisted Chemical Etching of GaAs with In-Position and Out-of-Position Catalyst

Yunwon Song, Jungwoo Oh*

Journal of Materials Chemistry A 2 (48), 20481–20485 (2014.12) DOI

In-Plane and Out-of-Plane Mass Transport in Metal-Assisted Chemical Etching of GaAs

Yunwon Song, Bugeun Ki, Keorock Choi, Ilwhan Oh, Jungwoo Oh*

Journal of Materials Chemistry A 2 (29), 11017-11021 (2014.08) DOI (Back Cover)


Ge Metal Oxide Semiconductor Field Effect Transistors with Optimized Si Cap and High-k Metal Gate Stacks

Jungwoo Oh*

Current Applied Physics 14, S69-S73 (2014.03) DOI


Low Interface Defect Density of ALD BeO with Self-cleaning Reaction for InGaAs MOSFETs

H. S. Shin, J. H. Yum, D. W. Johnson, H. R. Harris, Todd. W. Hudnall, J. Oh, P. Kirsch, R. Jammy, W. Y. Loh, W. Wang, G. Bersuker, C. W. Bielawski, S. K. Banerjee, J. C. Lee, and H. D. Lee

Applied Physics Letters 103, 223504 (2013.11)  DOI


A Study of Capping Layers for Sulfur Monolayer Doping on III-V Junctions

J. H. Yum, H. S. Shin, J. Barnett, R. Hill, J. Oh, H. D. Lee, Todd. W. Hudnall, C. W. Bielawski, S. K. Banerjee, G. Bersuker, W. Y. Loh, and Wei-E Wang

Applied Physics Letters 101, 253514 (2012.12)  DOI


Interfacial and electrical properties of HfO2 gate dielectrics grown on GaAs by atomic layer deposition using different oxidants

Young-Chul Byun, Chandreswar Mahata, Chee-Hong An, Jungwoo Oh, Rino Choi and Hyoungsub Kim

Journal of Physics D-Applied Physics 45 435305 (2012.10)  DOI


Reliability study of methods to suppress boron transient enhanced diffusion in high-k/metal gate Si/SiGe channel pMOSFETs

Min Sang Park, Yonghyun Kim, Kyong Taek Lee, Chang Yong Kang, Byoung-Gi Min, Jungwoo Oh, Prashant Majhi, Hsing-Huang Tseng, Jack C. Lee, Sanjay K. Banerjee, Jeong-Soo Lee, Raj Jammy, Yoon-Ha Jeong

Microelectronic Engineering 112, 80-83 (2013) DOI


(Invited) Integration Challenges of III-V Materials in Advanced CMOS Logic

Richard J. Hill, Jeff Huang,Wei Yip Loh, Taewoo Kim, M. H. Wong, D. Veksler, T. H. Cunningham, R. Droopad, Jungwoo Oh, Chris Hobbs, Paul D. Kirsch and Raj Jammy, 

ECS Transactions (2012)  DOI


Quantification of interfacial state density (D-it) at the high-k/III-V interface based on Hall effect measurements

Veksler, D., Nagaiah, P., Chidambaram, T., Cammarere, R., Tokranov, V., Yakimov, M., Chen, Y. - T., Huang, J., Goel, N., Oh, J., Bersuker, G., Hobbs, C., Kirsch, P. D., Oktyabrsky, S.

Journal of Applied Physics 112, 54504 (2012) DOI


Thermally Robust Ni Germanide Technology Using Cosputtering of Ni and Pt for High-Performance Nanoscale Ge MOSFETs

Min-Ho Kang, Hong-Sik Shin, Jung-Ho Yoo, Ga-Won Lee, Jung-Woo Oh, Majhi, P., Jammy, R., Hi-Deok Lee, IEEE Transaction on Nanotechnology 11 4, 769-776 (2012) DOI


Improvement of Thermal Stability of Ni-Germanide with Ni/Co/Ni/TiN Structure for High Performance Ge Metal--Oxide--Semiconductor Field Effect Transistors

Shin, Hong-Sik, Oh, Se-Kyung, Kang, Min-Ho, Kwon, Hyuk-Min, Oh, Jungwoo, Majhi, Prashant, Jammy, Raj, Lee, Ga-Won, Lee, Hi-Deok

Japanese Journal of Applied Physics 51 2, 02BA02-02BA02-4 (2012) DOI


Interfacial and electrical properties of HfO2 gate dielectrics grown on GaAs by atomic layer deposition using different oxidants

Young-Chul Byun, Chandreswar Mahata, Chee-Hong An, Jungwoo Oh, Rino Choi and Hyoungsub Kim

J. Phys. D: Appl. Phys. 45 435305 (2012) DOI


High Mobility CMOS Transistors on Si/SiGe Heterostructure Channels

Jungwoo Oh, Kanghoon Jeon, Se-Hoon Lee, Jeff Huang, PY Hung, Injo Ok, B.G. Min, Barry Sassman, Prashant Majhi, Paul Kirsch, Raj Jammy

Microelectronic Engineering 97, 26-28 (2012) DOI


Theoretical approach to evaluating beryllium oxide as a gate dielectric considering electromagnetics and thermal stability

J. H. Yum, G. Bersuker, J. Oh, and S. K. Banerjee

Applied Physics Letters , 053051 (2012) DOI


Characterization of device performance and reliability of high performance Ge-on-Si field-effect transistor

Won-Ho Choi, Jungwoo Oh, Ook-Sang Yoo, In-Shik Han, Min-Ki Na, Hyuk-Min Kwon, Byung-Suk Park, P. Majhi, H.-H. Tseng, R. Jammy, Hi-Deok Lee

Microelectronic Engineering 88 12, 3424-3427 (2011) DOI


Highly scaled (Lg ~ 56 nm) gate-last Si tunnel field-effect transistors

Wei-Yip Loh, Kanghoon Jeon, Chang Yong Kang, Jungwoo Oh, Tsu-Jae King Liu, Hsing-Huang Tseng, Wade Xiong, Prashant Majhi, Raj Jammy, Chenming Hu

Solid-State Electronics , 65-66 (2011) DOI


Comparison of Ohmic contact resistances of n- and p-type Ge source/drain and their impact on transport characteristics of Ge metal oxide semiconductor field effect transistors

J. Oh, J. Huang, I. Ok, S.-H. Lee, B. Sassman, K. Jeon, W.-Y. Loh, D.-H. Ko, P. D. Kirsch, P. Majhi, and R. Jammy

Thin Solid Films , 520 442-444 (2011) DOI


Process driven oxygen redistribution and control in Si0.7Ge0.3/HfO2/TaN gate stack film systems

Patrick S. Lysaght, Joseph C. Woicik, Jeff Huang, Jungwoo Oh, Byoung-Gi Min, and Paul D. Kirsch

Applied Physics Letters 084107 (2011) DOI


Impact of Millisecond Flash-Assisted Rapid Thermal Annealing on SiGe Heterostructure Channel pMOSFETs With a High-k/Metal Gate

Se-Hoon Lee, Prashant Majhi, Domingo A. Ferrer, Pui-Yee Hung, Jeff Huang, Jungwoo Oh, Wei-Yip Loh, Barry Sassman, Byoung-Gi Min, Hsing-Huang Tseng, Rusty Harris, Gennadi Bersuker, Paul D. Kirsch, Raj Jammy, and Sanjay K. Banerjee

IEEE Transactions on Electron Devices 58 9, (2011) DOI


Thermal Endurance and Microstructural Evolution of PtGe for High-Performance Nano-Scale Ge-on-Si MOSFETs

Min-Ho Kang, Hong-Sik Shin, Se-Kyung Oh, Jung-Ho Yoo, Ga-Won Lee, Jung-Woo Oh, Prashant Majhi, Raj Jammy, and Hi-Deok Lee

Journal of Nanoscience and Nanotechnology 11 5633-5639 (2011) DOI


High Transport Si/SiGe Heterostructures for CMOS Transistors with Orientation and Strain Enhanced Mobility

J. Oh, J. Huang, I. Ok, S.-H. Lee, P. Kirsch, R. Jammy

The IEICE (Institute of Electronics, Information and Communication Engineers) Transactions on Electronics E94-C 5, 712-716 (2011) DOI


ON-State Performance Enhancement and Channel Direction Dependent Performance of Biaxial Compressive Strained Si0.5Ge0.5 Quantum Well pMOSFET along <110> and <100> Channel Directions

Se-Hoon Lee, Aneesh Nainani, Jungwoo Oh, Kanghoon Jeon, Paul D. Kirsch, Prashant Majhi, Leonard F. Register, Sanjay K. Banerjee and Raj Jammy

IEEE Transactions on Electron Devices (2011) DOI


High-Mobility TaN/Al(2)O(3)/Ge(111) n-MOSFETs With RTO-Grown Passivation Layer

M. Jamil, J.Oh, S. Kaur, P. Majhi, E. Tutuc and S. K. Banerjee

IEEE Electron Device Letters 31 11, 1208-1210 (2010) DOI


Trade-off Between Hot Carrier and Negative Bias Temperature Degradations in High Performance Si1-xGex pMOSFETs with High-k/Metal Gate Stack

Won-Ho Choi, Chang-Young Kang, Jung-Woo Oh, Byoung Hun Lee, Prashant Majhi, Hyuk-Min Kwon, Raj Jammy , and Hi-Deok Lee

IEEE Electron Device Letters 31 11, (2010) DOI


The Effect of a Si Capping Layer on RF Characteristics of High-k/Metal Gate SiGe Channel pMOSFETs

Min Sang Park, Kyong Taek Lee, Chang Yong Kang, Gil-Bok Choi, Hyun Chul Sagong, Chang Woo Sohn, Byoung-Gi Min, Jungwoo Oh, Prashant Majhi, Hsing-Huang Tseng, Jack C. Lee, Jeong-Soo Lee, Raj Jammy, and Yoon-Ha Jeong

IEEE Electron Device Letters (2010) DOI


Thermal desorption of Ge native oxides and loss of Ge from the surface

Jungwoo Oh and Joe Campbell

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING 13 3, 185-188 (2010) DOI


Si tunnel transistors with a novel silicided source and 46mV/dec swing

Kanghoon Jeon, Wei-Yip Loh, Pratik Patel, Chang Yong Kang, Jungwoo Oh, Anupama Bowonder, Chanro Park, CS Park, Casey Smith, Prashant Majhi, Hsing-Huang Tseng, Raj Jammy, Tsu-Jae King Liu, Chenming Hu 

2010 Symposium on VLSI Technology, 121-122 (2010) DOI


Prospect of tunneling green transistor for 0.1 V CMOS

Chenming Hu, Pratik Patel, Anupama Bowonder, Kanghoon Jeon, Sung Hwan Kim, Wei Yip Loh, Chang Yong Kang, Jungwoo Oh, Prashant Majhi, Ali Javey, Tsu-Jae King Liu, Raj Jammy 

2010 International Electron Devices Meeting, 16.1. 1-16.1. 4 (2010) DOI


Influence of Incorporating Rare Earth Metals on the Schottky Barrier Height of Ni Silicide

Ying-Ying Zhang, Soon-Yen Jung, Jungwoo Oh, Hong-Sik Shin, Se-Kyung Oh, Jin-Suk Wang, Prashant Majhi, Raj Jammy, and Hi-Deok Lee

Japanese Journal of Applied Physics 49 055701 (2010) DOI


Novel Capacitorless Single-Transistor Charge-Trap DRAM (1T CT DRAM) Utilizing Electrons

M. Günhan Ertosun, Kwan-Yong Lim, Chanro Park, Jungwoo Oh, Paul Kirsch, and Krishna C. Saraswat

IEEE Electron Device Letters 31 405--407 (2010) DOI


Improved thermal stability of Al2O3 /HfO2/Al2O3 high-k gate dielectric stack on GaAs

Dong Chan Suh, Young Dae Cho, Sun Wook Kim, Dae-Hong Ko, Yongshik Lee, Mann-Ho Cho, and Jungwoo Oh

Applied Physics Letters 96 142112 (2010) DOI


Improvement of Thermal Stability of Ni Germanide Using a Ni–Pt(1%) Alloy on Ge-on-Si Substrate for Nanoscale Ge MOSFETs

Ying-Ying Zhang, Jungwoo Oh, Shi-Guang Li, Soon-Yen Jung, Kee-Young Park, Ga-Won Lee, Prashant Majhi, Hsing-Huang Tseng, Raj Jammy, and Hi-Deok Lee

IEEE Transactions on Nanotechnology 9 2, (2010) DOI


Effective Modulation of Ni Silicide Schottky Barrier Height Using Chlorine Ion Implantation and Segregation

Wei-Yip Loh, Etienne, H., Coss, B., Ok, I., Turnbaugh, D., Spiegel, Y., Torregrosa, F., Banti, J., Roux, L., Pui-Yee Hung, Jungwoo Oh, Sassman, B., Radar, K., Majhi, P., Hsing-Huang Tseng, Jammy

R, IEEE Electron Device Letters 30 1140-1142 (2009) DOI


Influence of an Oxide Interlayer Dielectric (ILD) Capping Layer on the Thermal Stability of Ni Germanide for Nanoscale Ge MOSFETs

Ying-Ying Zhang, In-Shik Han, Shi-Guang Li, Soon-Yen Jung, Kee-Young Park, Hong-Sik Shin, Ga-Won Lee, Jin-Suk Wang, Hi-Deok Lee, Jungwoo Oh, Prashant Majhi and Raj Jammy

Journal of the Korean Physical Society 55 1026-1030 (2009) DOI


Suppression of Nickel-germanide (NiGe) Agglomeration and NiPenetration by Hydrogen (H) Ion Shower Doping in NiGe on a ThinEpitaxial Ge-on-Si substrate

Min-Ho Kang, Ying-Ying Zhang, Kee-Young Park, Shi-Guang Li, Soon-Yen Jung, Ga-Won Lee, Jin-Suk Wang, Hi-Deok Lee, Jung-Woo Oh, Prashant Majhi, Raj Jammy and Kun-Joo Park

Journal of the Korean Physical Society 55 1, 221-226 (2009) DOI


High Mobility SiGe p-Channel Metal-Oxide-Semiconductor Field Effect Transistors Epitaxially Grown on Si (100) Substrates with HfSiO2 High-k Dielectric and Metal Gate

J. Oh, P. Majhi, C. Y. Kang, R. Jammy R. Joe, T. Sugawara, Y. Akasaka, T. Kaitsuka, T. Arikado, and M. Tomoyasu, Japanese Journal of 

Applied Physics 48 4, 04C055 (2009) DOI


Effect of Si capping layer on the interface quality and NBTI of high mobility channel Ge-on-Si pMOSFETs

Ook Sang Yoo, Jungwoo Oh, Kyung Seok Min, Chang Yong Kang, B.H. Lee, Kyong Taek Lee, Min Ki Na, Hyuk-Min Kwon, P. Majhi, H-H Tseng, Raj Jammy, J.S. Wang, Hi-Deok Lee

Microelectronic Engineering 86 3, 259-262 (2009) DOI


Mechanisms Limiting EOT Scaling and Gate Leakage Currents of High-k/Metal Gate Stacks Directly on SiGe

Huang, J., Kirsch, P. D., Oh, J., Lee, S. H., Majhi, P., Harris, H. R., Gilmer, D. C., Bersuker, G., Heh, D., Park, C. S., Park, C., Tseng, H.-H., Jammy, R.

IEEE Electron Device Letters 30 3, 285-287 (2009) DOI


Thermal Immune Ni Germanide for High Performance Ge MOSFETs on Ge-on-Si Substrate Utilizing Ni0.95Pd0.05 Alloy

Ying-Ying Zhang, Jungwoo Oh, In-Sik Han, Zhun Zhong, Shi-Guang Li, Soon-Yen Jung, Kee-Young Park, Hong-Sik Shin, Won-Ho Choi, Hyuk-Min Kwon, Wei-Yip Loh, Prashant Majhi, Raj Jammy, and Hi-Deok Lee

IEEE Transactions on Electron Devices 56 2, 348-353 (2009) DOI


New Hot-Carrier Injection Mechanism at Source Side in Nanoscale Floating-Body MOSFETs

J.-W. Yang, H. R. Harris, G. Bersuker, C. Y. Kang, J. Oh, B. H. Lee, H.-H. Tseng, and R. Jammy

IEEE Electron Device Letters 30 1, 54-56 (2009) DOI


Ni Germanide Utilizing Ytterbium Interlayer for High-Performance Ge MOSFETs

Ying-Ying Zhang, Jungwoo Oh, Shi-Guang Li, Soon-Yen Jung, Kee-Young Park, Hong-Sik Shin, Ga-Won Lee, Jin-Suk Wang, Prashant Majhi, Hsing-Huang Tseng, Raj Jammy, Tae-Sung Bae, and Hi-Deok Lee

Electrochemical and Solid State Letters 12 H18 (2009) DOI


Microstructural Innovation of Ni Germanide on Ge-on-Si Substrate by Using Palladium Incorporation

Ying-Ying Zhang, Chel-Jong Choi, Jungwoo Oh, In-Shik Han, Shi-Guang Li, Kee-Young Park, Hong-Sik Shin, Ga-Won Lee, Jin-Suk Wang, Prashant Majhi, Raj Jammy, and Hi-Deok Lee

Electrochemical and Solid State Letters 12 11, H402-H404 (2009) DOI


Effect of Si interlayer thickness and post-metallization annealing on Ge MOS capacitor on Ge-on-Si substrate

Ook Sang Yooa, Jungwoo Oh, Chang Yong Kang, Byoung Hun Lee, In Shik Han, Won-Ho Choi, Hyuk-Min Kwon, Min-Ki Na, Prashant Majhi, Hsing-Huang Tseng, Raj Jammy, Jin Suk Wang and Hi-Deok Lee

Materials Science and Engineering B 154-155 102-105 (2008) DOI


Effective surface passivation methodologies for high performance Ge pMOSFETs

H. J. Na and J. C. Lee, D. Heh, P. Sivasubramani, P. D. Kirsch, J. W. Oh, P. Majhi, and B. H. Lee, S. Rivillon and Y. J. Chabal, R. Choi

Applied Physics Letters 93 19, 192115 (2008) DOI


Demonstration of Lg ~55 nm PMOSFETs with Si/Si0.25Ge0.75/Si Channels with high Ion/Ioff (> 5×104) and controlled Short Channel Effect (SCE)

S.-H. Lee, P. Majhi, J. Oh, B. Sassman, C. Young, A. Bowonder, W.-Y. Loh, K. Choi, B.-J. Cho, H.-D. Lee, P. Kirsch, H. R. Harris, W. Tsai, S. Datta, H.-H. Tseng, S. K. Banerjee and R. Jammy

IEEE Electron Device Letters 29 9, 1017-1019 (2008) DOI


Fully strained Si0.75Ge0.25 epitaxial films with HfSiO gate dielectrics for high mobility channel metal-oxide semiconductor devices

J. Oh, P. Majhi, R. Jammy, R. Joe, T. Sugawara, Y. Akasaka, T. Kaitsuka, T. Arikado, M. Tomoyasu

Microelectronic Engineering 85, 1804-1806 (2008) DOI


Effects of film stress modulation using TiN metal gate on stress engineering and its impact on device characteristics in metal gate/high-kappa dielectric SOI FinFETs

C. Y. Kang, J.-W. Yang, J. Oh, R. Choi, Y. Suh, H.C Floresca, J. Kim, M. Kim, B. Lee, H.-H. Tseng, R. Jammy

IEEE Electron Device Letters 29 5, 487-490 (2008) DOI


Interface characteristics of ZrO2 high-k gate dielectrics on epitaxial Ge capacitor layers after thermal desorption of Ge native oxide and Ge nitridation

Jungwoo Oh, P. Majhi, H.-H. Tseng, and R. Jammy, D. Kelly, S. Banerjee, J. Campbell

Thin Solid Films 516 12, 4107-4110 (2008) DOI


Combined Effects of an Epitaxial Ge Channel and Si Substrate on Ge-on-Si MOS Capacitors and Field Effect Transistors

Jungwoo Oh, P. Majhi, H. Lee, S. Banerjee, R. Harris, H.-H. Tseng, and R. Jammy

Japanese Journal of Applied Physics 2656-2659 (2008) DOI


Inversion-type enhancement-mode HfO2-based GaAs metal-oxide-semiconductor field effect transistors with a thin Ge layer

H.-S. Kim I. Ok, M. Zhang, F. Zhu, S. Park, J. Yum, H. Zhao, Jack C. Lee, J. Oh, Prashant Majhi

Applied Physics Letters 92 032907 (2008) DOI


Flatband voltage instability characteristics of HfO2-based GaAs metal-oxide-semiconductor capacitors with a thin Ge layer

H.-S. Kim I. Ok, M. Zhang, F. Zhu, S. Park, J. Yum, H. Zhao, Jack C. Lee, J. Oh, Prashant Majhi

Applied Physics Letters 92 102904 (2008) DOI


Demonstration of High Performance PMOSFETs Using Si/SixGe1-x/Si Quantum Wells with High-k/Metal Gate Stacks

P. Majhi, P. Kalra, R. Harris, K. J. Choi, D. Heh, J. Oh, D. Kelly, R. Choi, B.J. Cho, S. Banerjee, W. Tsai1, H. Tseng, R. Jammy

IEEE Electron Device Letters 29 1, 99-10 (2008) DOI


Phase Separation of Ni Germanide Formed on a Ge-on-Si Structure for Ge MOSFETs

Ying-Ying Zhang, Jungwoo Oh, Tae-Sung Bae, Zhun Zhong, Shi-Guang Li, Soon-Yen Jung, Kee-Young Park, Ga-Won Lee, Jin-Suk Wang,Prashant Majhi, Byoung-Hun Lee, Hsing-Huang Tseng, Yoon-Ha Jeong and Hi-Deok Lee

Electrochemical and Solid State Letters 11 1, H1-H3 (2008) DOI


Improved electrical characteristics of Ge-on-Si field effect transistors with controlled Ge epitaxial layer thickness on Si substrates

Jungwoo Oh, Prashant Majhi, Hideok Lee, Ooksang Yoo, Sanjay Banerjee, Chang Yong Kang, Ji-Woon Yang, Rusty Harris, Hsing-Huang Tseng, and Raj Jammy

IEEE Electron Device Letters 28 11, 1044-1046 (2007) DOI


Interrelationship between electrical and physical properties of subcritical Si-Ge layers grown directly on silicon for short channel high-performance pMOSFETs

D. Q. Kelly, S. Lee, P. Kalra, R. Harris, J. Oh, P. Kirsch, S. K. Banerjee, P. Majhi, H. Tseng, R. Jammy

Microelectronic Engineering 84, 2054-2057 (2007) DOI


Thermal stability of nanoscale Ge MOS capacitors with ZrO2 high-k gate dielectrics on Ge epitaxial layers

Jungwoo Oh, P. Majhi, C. Y. Kang, J.-W. Yang, H.-H. Tseng, and R. Jammy

Applied Physics Letters 90 15, 202102 (2007) DOI


Improved Ge surface passivation with ultrathin SiOx enabling high-mobility surface channel pMOSFETs featuring a HfSiO/WN gate stack

S. Joshi, C. Krug, D. Heh, H. J. Na, H. R. Harris, J. Oh, P. D. Kirsch, P. Majhi, B. H. Lee, H.-H. Tseng, R. Jammy, J. C. Lee, S. K. Banerjee

IEEE Electron Device Letters 28 4, 308-311 (2007) DOI


Effectiveness of SiGe buffer layers in reducing dark currents of Ge-on-Si photodetectors

Zhihong Huang, Jungwoo Oh, Sanjay Banerjee, and Joe Campbell

IEEE Journal of Quantum Electronics 43 , 238-242 (2007) DOI


Gate Stack Technology for Nano Scale Devices: Current and Future Challenges

Byoung Hun Lee, Jungwoo Oh, Hsing Huang Tseng, Rajarao Jammy, and Howard Huff

Materials Today 9 32-40 (2006) DOI


Back-side-illuminated high-speed Ge photodetector fabricated on Si substrate using thin SiGe buffer layers

Z. Huang Jungwoo Oh, and J. C. Campbell

Applied Physics Letters 85, 3286-3288 (2004) DOI


Thermal desorption of Ge native oxides and the loss of Ge from the surface

Jungwoo Oh and J. C. Campbell

Journal of Electronic Materials 33, 364-367 (2004) DOI


Metal-germanium-metal photodetectors on heteroepitaxial Ge-on-Si with amorphous Ge Schottky barrier enhancement layers

Jungwoo Oh, S. K. Banerjee, and J. C. Campbell

IEEE Photonics Technology Letters 16, 581-583 (2004) DOI


Interdigitated Ge p-i-n Photodetectors fabricated on Si substrate using graded SiGe buffer layers

Jungwoo Oh, J. C. Campbell, S. Thomas, S. Bharatan, R. Thoma, C. Jasper, R. E. Jones, and T. E. Zirkle

IEEE Journal of Quantum Electronics 38 1238-1241 (2002) DOI


High-speed interdigitated Ge PIN photodetectors

Jungwoo Oh, S. Csutak, and J. C. Campbell

IEEE Photonics Technology Letters 14 369-371 (2002) DOI


AlGaAs/InGaAs Pseudomorphic High Electron Mobility Transistor using Pd/Ge Ohmic Contact

J-L. Lee, Y. T. Kim, Jung-Woo Oh, B.-T. Lee

Japanese Journal of Applied Physics 40 , 1188-1193 (2001) DOI


Selective Wet Etching of GaAs on Al0.24Ga0.76As for GaAs/Al0.24Ga0.76As/In0.22Ga0.78As PHEMT

J-L. Lee, E.-A. Moon, Jung-Woo Oh

Electronic Letters 36, 1974-1975 (2000) DOI


Application of nonalloyed PdGe ohmic contact to self-aligned gate AlGaAs/InGaAs pseudomorphic high-electron-mobility transistor

Jung-Woo Oh and J-L. Lee

Applied Physics Letters 74 19, 2866-2868 (1999) DOI