Journal paper

[35] [Corresponding Author] Woochul Kim, Yeonju Seo, Dante Ahn, In Soo Kim, Chandran Balamurugan, Gun Young Jung, Sooncheol Kwon, Hyeonghun Kim*, Yusin Pak*, Monolithic Perovskite–Silicon Dual‐Band Photodetector for Efficient Spectral Light Discrimination, Advanced Science 2024, 11, 2308840.

[34] Chandran Balamurugan, Changhoon Lee, Kyusang Cho, Jehan Kim, Byoungwook Park, Woochul Kim, Namsoo Lim, Hyeonghun Kim, Yusin Pak, Keun Hwa Chae, Ji Hoon Shim, Sooncheol Kwon, High-performance rechargeable metal–air batteries enabled by efficient charge transport in multielement random alloy electrocatalyst, Applied Catalysis B: Environmental 2023, 330, 122631.

[33] [1st Author] Hyeonghun Kim, Yuxuan Zhang, Molly Rothschild, Kwangdong Roh, Yunseok Kim, Ho Seong Jang, Byung‐Cheol Min, Sunghwan Lee, Hybrid Silicon‐Polymer Photodetector Engineered Using Oxidative Chemical Vapor Deposition for High‐Performance and Bias‐Switchable Multi‐Functionality, Advanced Functional Materials 2022, 32, 2201641.

[32] Yuxuan Zhang, Chung Soo Kim, Han Wook Song, Sung-Jin Chang, Hyeonghun Kim, Jeongmin Park, Shan Hu, Kejie Zhao, Sunghwan Lee, Ultrahigh active material content and highly stable Ni-rich cathode leveraged by oxidative chemical vapor deposition, Energy Storage Materials 2022, 48, 1-11.

[31] [1st Author] Woochul Kim#, Hyeonghun Kim#, Tae Jin Yoo, Jun Young Lee, Ji Young Jo, Byoung Hun Lee, Assa Aravindh Sasikala, Gun Young Jung, Yusin Pak, Perovskite multifunctional logic gates via bipolar photoresponse of single photodetector, Nature Communications 2022, 13, 1-8.

[30] Dong Hun Lee, Honghwi Park, Michael Clevenger, Hyeonghun Kim, Chung Soo Kim, Mingyuan Liu, Giyong Kim, Han Wook Song, Kwangsoo No, Sung Yeol Kim, Dong-Kyun Ko, Anne Lucietto, Hongsik Park, Sunghwan Lee, High-Performance Oxide-Based p–n Heterojunctions Integrating p-SnOx and n-InGaZnO, ACS Applied Materials & Interfaces 2021, 13, 55676-55686.

[29] [1st Author] Michael Clevenger#, Hyeonghun Kim#, Han Wook Song, Kwangsoo No, Sunghwan Lee, Binder-free printed PEDOT wearable sensors on everyday fabrics using oxidative chemical vapor deposition, Science advances 2021, 7, eabj8958.

[28] Mingyuan Liu, Xingyu Wang, Han Wook Song, Hyeonghun Kim, Michael Clevenger, Dong-Kyun Ko, Kwangsoo No, Sunghwan Lee, Origin of an unintended increase in carrier density of ternary cation-based amorphous oxide semiconductors, Applied Surface Science 2021, 556, 149676.

[27] [1st Author] Mingyuan Liu#, Hyeonghun Kim#, Xingyu Wang, Han Wook Song, Kwangsoo No, Sunghwan Lee, Carrier density-tunable work function buffer at the channel/metallization interface for amorphous oxide thin-film transistors, ACS Applied Electronic Materials 2021, 3, 2703-2711.

[26] Namsoo Lim, Hyeonghun Kim, Yusin Pak, Young Tae Byun, Enhanced NO2 Sensing Performance of Graphene with Thermally Induced Defects, Materials 2021, 14, 2347.

[25] Kihyeun Kim, Hyeonghun Kim, Eun-Jung Jo, Hyungjun Jang, Jiyoon Park, Gun Young Jung, Min-Gon Kim, Reactant/polymer hybrid films on pn junction photodetectors for self-powered, non-invasive glucose biosensors, Biosensors and Bioelectronics 2021, 175, 112855.

[24] [1st Author] Hyeonghun Kim#, Woochul Kim#, Yusin Pak, Tae Jin Yoo, Hae‐Won Lee, Byoung Hun Lee, Sooncheol Kwon, Gun Young Jung, Bias‐Modulated Multicolor Discrimination Enabled by an Organic–Inorganic Hybrid Perovskite Photodetector with ap‐i‐n‐i‐p Configuration, Laser & Photonics Reviews 2020, 14, 2000305.

[23] Yogeenth Kumaresan, Hyeonghun Kim, Yusin Pak, Praveen Kumar Poola, Ryeri Lee, Namsoo Lim, Heung Cho Ko, Gun Young Jung, Ravinder Dahiya, Omnidirectional Stretchable inorganic‐material‐based electronics with enhanced performance, Advanced Electronic Materials 2020, 6, 2000058.

[22] [1st Author] Hyeonghun Kim, Woochul Kim, Sungjun Cho, Jiyoon Park, Gun Young Jung, Molecular Sieve Based on a PMMA/ZIF-8 Bilayer for a CO-Tolerable H2 Sensor with Superior Sensing Performance, ACS applied materials & interfaces 2020, 12, 28616-28613.

[21] [1st Author] Hyeonghun Kim, Woochul Kim, Ryeri Lee, Sungjun Cho, Jiyoon Park, Yusin Pak, Gun Young Jung, High-performance photovoltaic hydrogen sensing platform with a light-intensity calibration module, ACS sensors 2020, 5, 1050-1057.

[20] Yusin Pak, Somak Mitra, Naresh Alaal, Bin Xin, Sergei Lopatin, Dhaifallah Almalawi, J-W Min, H Kim, W Kim, G-Y Jung, Iman S Roqan, Dark-current reduction accompanied photocurrent enhancement in p-type MnO quantum-dot decorated n-type 2D-MoS2-based photodetector, Applied Physics Letters 2020, 116.

[19] Yusin Pak, Woojin Park, Naresh Alaal, Yogeenth Kumaresan, S Assa Aravindh, Somak Mitra, Bin Xin, Jung-Wook Min, Hyeonghun Kim, Namsoo Lim, Byungjin Cho, Gun-Young Jung, Muhammad M Hussain, Iman S Roqan, Enhanced Photoresponse of WS2 Photodetectors through Interfacial Defect Engineering Using a TiO2 Interlayer, ACS Applied Electronic Materials 2020, 2, 838-845.

[18] Sooncheol Kwon, Yusin Pak, Bongseong Kim, Byoungwook Park, Jehan Kim, Geunjin Kim, Yong-Ryun Jo, Saurav Limbu, Katherine Stewart, Hyeonghun Kim, Bong-Joong Kim, Soo-Young Jang, Hongkyu Kang, Jung-Wook Min, Ji-Seon Kim, Gun Young Jung, Kwanghee Lee, Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors, Journal of Materials Chemistry A 2020, 8, 16884-16891.

[17] Namsoo Lim, Yusin Pak, Jae‐Keun Kim, Tae Jin Yoo, Hyeonghun Kim, Yogeenth Kumaresan, Woochul Kim, Seongjun Cho, Sooncheol Kwon, Byoung Hun Lee, Takhee Lee, Gun‐Young Jung, Enhanced Photo‐Response of Mos2 Photodetectors by a Laterally Aligned SiO2 Nanoribbon Array Substrate, ChemNanoMat 2019, 5, 1272-1279.

[16] Kihyeun Kim, Jiyoon Park, Hyeonghun Kim, Gun Young Jung, Min-Gon Kim, Solid-Phase Photocatalysts: Physical Vapor Deposition of Au Nanoislands on Porous TiO2 Films for Millimolar H2O2 Production within a Few Minutes, ACS Catalysis 2019, 9, 9206-9211.

[15] Yusin Pak, Yeonggyo Jeong, Naresh Alaal, Hyeonghun Kim, Jeonghoon Chae, Jung‐Wook Min, Assa Aravindh Sasikala Devi, Somak Mitra, Da Hoon Lee, Yogeenth Kumaresan, Woojin Park, Tae‐Wook Kim, Iman S Roqan, Gun‐Young Jun, Highly stable and ultrafast hydrogen gas sensor based on 15 nm nanogaps switching in a palladium–gold nanoribbons array, Advanced Materials Interfaces 2019, 6, 1801442.

[14] Jiyoon Park, Jin Woo Choi, Woochul Kim, Ryeri Lee, Hee Chul Woo, Jisoo Shin, Hyeonghun Kim, Yeong Jun Son, Ji Young Jo, Heon Lee, Sooncheol Kwon, Chang-Lyoul Lee, Gun Young Jung, Improvement of perovskite crystallinity by omnidirectional heat transfer via radiative thermal annealing, RSC advances 2019, 9, 14868-14875.

[13] Jiyoon Park, Kihyeun Kim, Eun-Jung Jo, Woochul Kim, Hyeonghun Kim, Ryeri Lee, Jun Young Lee, Ji Young Jo, Min-Gon Kim, Gun Young Jung, Plasmon enhanced up-conversion nanoparticles in perovskite solar cells for effective utilization of near infrared light, Nanoscale 2019, 11, 22813-22819.

[12] Woochul Kim, Jong Bae Park, Hyeonghun Kim, Kihyeun Kim, Jiyoon Park, Sungjun Cho, Heon Lee, Yusin Pak, Gun Young Jung, Enhanced long-term stability of perovskite solar cells by passivating grain boundary with polydimethylsiloxane (PDMS), Journal of Materials Chemistry A 2019, 7, 20832-20839. 

[11] Kihyeun Kim, Hyeonghun Kim, Hyungjun Jang, Jiyoon Park, Gun-Young Jung, Min-Gon Kim, Self-Powered Biosensors Using Various Light Sources in Daily Life Environments: Integration of p–n Heterojunction Photodetectors and Colorimetric Reactions for Biomolecule Detection, ACS applied materials & interfaces 2018, 10, 39487-39493.

[10] Yusin Pak, Y Kim, N Lim, J-W Min, Woojin Park, W Kim, Y Jeong, H Kim, K Kim, Somak Mitra, Bin Xin, T-W Kim, Iman S Roqan, B Cho, G-Y Jung, Scalable integration of periodically aligned 2D-MoS2 nanoribbon array, APL Materials 2018, 6.

[9] Yogeenth Kumaresan, Ryeri Lee, Namsoo Lim, Yusin Pak, Hyeonghun Kim, Woochul Kim, Gun‐Young Jung, Extremely flexible indium‐gallium‐zinc oxide (igzo) based electronic devices placed on an ultrathin poly (methyl methacrylate)(pmma) substrate, Advanced Electronic Materials 2018, 4, 1800167.

[8] [1st Author] Hyeonghun Kim, Yusin Pak, Yeonggyo Jeong, Woochul Kim, Jeongnam Kim, Gun Young Jung, Amorphous Pd-assisted H2 detection of ZnO nanorod gas sensor with enhanced sensitivity and stability, Sensors and Actuators B: Chemical 2018, 262, 460-468.

[7] [1st Author] Hyeonghun Kim, Woochul Kim, Jiyoon Park, Namsoo Lim, Ryeri Lee, Sung Jun Cho, Yogeenth Kumaresan, Myoung-Kyu Oh, Gun Young Jung, Surface conversion of ZnO nanorods to ZIF-8 to suppress surface defects for a visible-blind UV photodetector, Nanoscale 2018, 10, 21168-21177.

[6] Namsoo Lim, Tae Jin Yoo, Jin Tae Kim, Yusin Pak, Yogeenth Kumaresan, Hyeonghun Kim, Woochul Kim, Byoung Hun Lee, Gun Young Jung, Tunable graphene doping by modulating the nanopore geometry on a SiO2/Si substrate, RSC advances 2018, 8, 9031-9037.

[5] Yogeenth Kumaresan, Hyeonghun Kim, Yeonggyo Jeong, Yusin Pak, Sungjun Cho, Ryeri Lee, Namsoo Lim, Gun Young Jung, Ultra-high sensitivity to low hydrogen gas concentration with Pd-decorated IGZO film, IEEE Electron Device Letters 2017, 38, 1735-1738.

[4] Woochul Kim, Jiyoon Park, Hyeonghun Kim, Yusin Pak, Heon Lee, Gun Young Jung, Sequential dip-spin coating method: fully infiltration of MAPbI3-xClx into mesoporous TiO2 for stable hybrid perovskite solar cells, Electrochimica Acta 2017, 245, 734-741.

[3] [1st Author] Hyeonghun Kim, Youngmin Kim, Yuseong Noh, Seonhwa Lee, Jaekyung Sung, Won Bae Kim, Thermally Converted CoO Nanoparticles Embedded into N‐Doped Carbon Layers as Highly Efficient Bifunctional Electrocatalysts for Oxygen Reduction and Oxygen Evolution Reactions, ChemCatChem 2017, 9, 1503-1510.

[2] [1st Author] Hyeonghun Kim, Youngmin Kim, Yuseong Noh, Won Bae Kim, Ultrathin amorphous α-Co (OH) 2 nanosheets grown on Ag nanowire surfaces as a highly active and durable electrocatalyst for oxygen evolution reaction, Dalton Transactions 2016, 45, 13686-13690.

[1] Youngmin Kim, Hyeonghun Kim, Won Bae Kim, PtAg nanotubes for electrooxidation of ethylene glycol and glycerol in alkaline media, Electrochemistry communications 2014, 46, 36-39.