PUBLICATIONS

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Mechanism and Timescales of Reversible p‐Doping of Methylammonium Lead Triiodide by Oxygen

Dongguen Shin, Fengshuo Zu, Ayala V Cohen, Yeonjin Yi, Leeor Kronik, Norbert Koch*

Advanced Materials, 33, 2100211 (2021)

The Electronic Properties of a 2D Ruddlesden‐Popper Perovskite and its Energy Level Alignment with a 3D Perovskite Enable Interfacial Energy Transfer

Dongguen Shin, Fengshuo Zu, Edgar R Nandayapa, Lennart Frohloff, Emily Albert, Emil JW List‐Kratochvil, Norbert Koch*

Advanced Functional Materials, 33, 2 (2023), 물리학과 첨단기술 새로운 연구결과 소개

2023

Surface doping of rubrene single crystals by molecular electron donors and acceptors  

Christos Gatsios, Andreas Opitz,†, * Dominique Lungwitz, Ahmed E Mansour, Thorsten Schultz, Dongguen Shin, Sebastian Hammer, Jens Pflaum, Yadong Zhang, Stephen Barlow, Seth R Marder, Norbert Koch* 

Physical Chemistry Chemical Physics, 25, 29718 (2023)

Work function measurement by ultraviolet photoelectron spectroscopy: Versailles project on advanced materials and standards interlaboratory study 

Jeong Won Kim,* Ansoon Kim,* Hui Ung Hwang, Jun Hyung Kim, Seungwook Choi, Norbert Koch, Dongguen Shin, Zhijuan Zhao, Fen Liu, Minki Choi, Kyu Myung Lee, Yongsup Park

Journal of Vacuum Science & Technology A, 41, 5 (2023)

Charge Selective Contacts to Metal Halide Perovskites Studied with Photoelectron Spectroscopy: X‐Ray, Ultraviolet, and Visible Light Induced Energy Level Realignment

Fengshuo Zu, Dongguen Shin, Emilio Gutierrez‐Partida, Martin Stolterfoht, Patrick Amsalem, Norbert Koch*

Advanced Materials Interfaces, 2300413 (2023)

Effect of ground state charge transfer and photoinduced charge separation on the energy level alignment at metal halide perovskite/organic charge transport layer interfaces

Lennart Frohloff, Fengshuo Zu, Dongguen Shin, Norbert Koch*

Applied Physics A, 129, 274 (2023)

The Electronic Properties of a 2D Ruddlesden‐Popper Perovskite and its Energy Level Alignment with a 3D Perovskite Enable Interfacial Energy Transfer

Dongguen Shin, Fengshuo Zu, Edgar R Nandayapa, Lennart Frohloff, Emily Albert, Emil JW List‐Kratochvil, Norbert Koch*

Advanced Functional Materials, 33, 2 (2023)

Illumination‐Driven Energy Level Realignment at Buried Interfaces between Organic Charge Transport Layers and a Lead Halide Perovskite

Fengshuo Zu, Marcel Roß, Lennart Frohloff, Dongguen Shin, Nir Tessler, Steve Albrecht, Norbert Koch*

Solar RRL, 6, 2101065 (2023)

2022

Electronic properties of metal halide perovskites and their interfaces: the basics

Fengshuo Zu, Dongguen Shin, Norbert Koch*

Materials Horizons, 9, 17 (2022)

2021

Photoinduced Energy-Level Realignment at Interfaces between Organic Semiconductors and Metal-Halide Perovskites

Fengshuo Zu, Jonathan H Warby, Martin Stolterfoht, Jinzhao Li, Dongguen Shin, Eva Unger, Norbert Koch*

Physical Review Letters, 127, 24 (2021)

The Schottky–Mott rule expanded for two-dimensional semiconductors: Influence of substrate dielectric screening

Soohyung Park,* Thorsten Schultz, Dongguen Shin, Niklas Mutz, Areej Aljarb, Hee Seong Kang, Chul-Ho Lee, Lain-Jong Li, Xiaomin Xu, Vincent Tung, Emil JW List-Kratochvil, Sylke Blumstengel, Patrick Amsalem, Norbert Koch*

ACS nano, 15, 14794 (2021)

Reversible oxygen-induced p-doping of mixed-cation halide perovskites

Dongguen Shin, Fengshuo Zu, Norbert Koch*

APL Materials, 9, 081104 (2021)

Temperature‐Dependent Electronic Ground‐State Charge Transfer in van der Waals Heterostructures

Soohyung Park, Haiyuan Wang, Thorsten Schultz, Dongguen Shin, Ruslan Ovsyannikov, Marios Zacharias, Dmitrii Maksimov, Matthias Meissner, Yuri Hasegawa, Takuma Yamaguchi, Satoshi Kera, Areej Aljarb, Mariam Hakami, Lain‐Jong Li, Vincent Tung, Patrick Amsalem, Mariana Rossi,* Norbert Koch*

Advanced Materials, 33, 2008677 (2021)

Mechanism and Timescales of Reversible p‐Doping of Methylammonium Lead Triiodide by Oxygen

Dongguen Shin, Fengshuo Zu, Ayala V Cohen, Yeonjin Yi, Leeor Kronik, Norbert Koch*

Advanced Materials, 33, 2100211 (2021)

Energy Level Alignment at the C60/Monolayer‐WS2 Interface on Insulating and Conductive Substrates

Jie Ma, Patrick Amsalem, Thorsten Schultz, Dongguen Shin, Xiaomin Xu, Norbert Koch*

Advanced Electronic Materials, 8, 2100425 (2021)

Type‐I Energy Level Alignment at the PTCDA—Monolayer MoS2 Interface Promotes Resonance Energy Transfer and Luminescence Enhancement

Soohyung Park,* Niklas Mutz, Sergey A Kovalenko, Thorsten Schultz, Dongguen Shin, Areej Aljarb, Lain‐Jong Li, Vincent Tung, Patrick Amsalem, Emil JW List‐Kratochvil, Julia Stähler, Xiaomin Xu, Sylke Blumstengel,* Norbert Koch*

Advanced Science, 8, 2100215 (2021)

2020

Origin of temperature-dependent performance of hole-transport-layer-free perovskite solar cells doped with CuSCN

Donghee Kang, Dongguen Shin, Kyu-Joon Lee, Soohyung Park, Jae-Pyoung Ahn, Junkyeong Jeong, Jisu Yoo, Kiwoong Kim, Hyunbok Lee,* Yeonjin Yi*

Organic Electronics, 87, 105958 (2020)

Position-locking of volatile reaction products by atmosphere and capping layers slows down photodecomposition of methylammonium lead triiodide perovskite

Fengshuo Zu, Thorsten Schultz, Christian M Wolff, Dongguen Shin, Lennart Frohloff, Dieter Neher, Patrick Amsalem, Norbert Koch*

RSC Advances, 10, 17534 (2020)

Impact of diethyl ether dripping delay time on the electronic structure of methylammonium lead triiodide perovskite film

Sohyun Park, Hyunchan Lee, Hyunbok Lee,* Dongguen Shin, Yeonjin Yi

Journal of the Korean Physical Society, 76, 162 (2020)

2019

Unveiling the origin of performance reduction in perovskite solar cells with TiO2 electron transport layer: Conduction band minimum mismatches and chemical interactions at buried interface

Junkyeong Jeong, Donghee Kang, Dongguen Shin, Jong Hyeok Park, Sang Wan Cho, Kwangho Jeong,* Hyunbok Lee,* Yeonjin Yi*

Applied Surface Science, 495, 143490 (2019)

Band Alignment Engineering between Planar SnO2 and Halide Perovskites via Two-Step Annealing

Jung Hwan Lee, Dongguen Shin, Ryan Rhee, Sangeun Yun, Kyung Mun Yeom, Do Hyung Chun, Sunje Lee, Dongho Kim, Yeonjin Yi, Jun Hong Noh, Jong Hyeok Park*

Journal of Physical Chemistry Letters, 10, 6545 (2019)

Integrated advantages from perovskite photovoltaic cell and 2D MoTe2 transistor towards self-power energy harvesting and photosensing

Yeonsu Jeong, Dongguen Shin, Ji Hoon Park, Jeehong Park, Yeonjin Yi,* Seongil Im*

Nano Energy, 63, 103833 (2019)

Phase formation and local charge transport of lead-free CH3NH3Sn (I1− xBrx) 3 (0≤ x≤ 1) perovskite solar cells fabricated by solvent optimization

Bich Phuong Nguyen, Dongguen Shin, Hye Ri Jung, Juran Kim, Trang Thi Thu Nguyen, Seokhyun Yoon, Yeonjin Yi, William Jo*

Solar Energy, 186, 136 (2019)

Electronic structure of nonionic surfactant-modified PEDOT: PSS and its application in perovskite solar cells with reduced interface recombination

Dongguen Shin, Donghee Kang, Jae-Bok Lee, Jong-Hyun Ahn, Il-Wook Cho, Mee-Yi Ryu, Sang Wan Cho, Na Eun Jung, Hyunbok Lee,* Yeonjin Yi*

ACS applied materials & interfaces, 11, 17028 (2019)

2018 - 2013

Improved stability of interfacial energy-level alignment in inverted planar perovskite solar cells

Soeun Im, Wanjung Kim, Wonseok Cho, Dongguen Shin, Do Hyung Chun, Ryan Rhee, Jung Kyu Kim, Yeonjin Yi, Jong Hyeok Park,* Jung Hyun Kim*

ACS applied materials & interfaces, 10, 18964 (2018)

Rapid Formation of a Disordered Layer on Monoclinic BiVO4: Co‐Catalyst‐Free Photoelectrochemical Solar Water Splitting

Jung Kyu Kim, Yoonjun Cho, Myung Jin Jeong, Ben Levy‐Wendt, Dongguen Shin, Yeonjin Yi, Dong Hwan Wang, Xiaolin Zheng, Jong Hyeok Park*

ChemSusChem, 11, 933 (2018)

Introducing paired electric dipole layers for efficient and reproducible perovskite solar cells

Jong-Hoon Lee, Junghwan Kim, Geunjin Kim, Dongguen Shin, Song Yi Jeong, Jinho Lee, Soonil Hong, Jin Woo Choi, Chang-Lyoul Lee, Heejoo Kim, Yeonjin Yi, Kwanghee Lee*

Energy & Environmental Science, 11, 1742 (2018)

Unraveling the charge extraction mechanism of perovskite solar cells fabricated with two-step spin coating: interfacial energetics between methylammonium lead iodide and C60

Dongguen Shin, Donghee Kang, Junkyeong Jeong, Soohyung Park, Minju Kim, Hyunbok Lee,* Yeonjin Yi*

Journal of Physical Chemistry Letters, 8, 5423 (2017)

Enhancing the Performance of Inverted Organic Photovoltaics Using Cathode Interlayers Based on Solution‐Processable Tetrabutylammonium Halides

Gyeongho Hyun, Dongguen Shin, Hyunbok Lee,* Yeonjin Yi*

Physica Status solidi RRL, 11, 1700250 (2017)

A solution-processable inorganic hole injection layer that improves the performance of quantum-dot light-emitting diodes

Sang Moo Lee, Dongguen Shin, Nam-Kwang Cho, Yeonjin Yi, Seong Jun Kang*

Current Applied Physics, 17, 442 (2017)

Band-tail transport of CuSCN: origin of hole extraction enhancement in organic photovoltaics

Minju Kim, Soohyung Park, Junkyeong Jeong, Dongguen Shin, Jimin Kim, Sae Hee Ryu, Keun Su Kim, Hyunbok Lee,* Yeonjin Yi*

Journal of Physical Chemistry Letters, 7, 2856 (2016)

Electron transport mechanism of bathocuproine exciton blocking layer in organic photovoltaics

Jeihyun Lee, Soohyung Park, Younjoo Lee, Hyein Kim, Dongguen Shin, Junkyeong Jeong, Kwangho Jeong, Sang Wan Cho, Hyunbok Lee,* Yeonjin Yi*

Physical Chemistry Chemical Physics, 18, 5444 (2016)

Interfacial energy level alignments between low-band-gap polymer PTB7 and indium zinc oxide anode

Dongguen Shin, Jeihyun Lee, Soohyung Park, Junkyeong Jeong, Ki-Won Seo, Hyo-Joong Kim, Han-Ki Kim, Min-Jun Choi, Kwun-Bum Chung,* Yeonjin Yi*

Applied Physics Express, 8, 095701 (2015)

Versatile hole injection of VO2: Energy level alignment at N, N′-di (1-naphthyl)-N, N′-diphenyl-(1, 1′-biphenyl)-4, 4′-diamine/VO2/fluorine-doped tin oxide

Hyein Kim, Jeihyun Lee, Soohyung Park, Junkyeong Jeong, Dongguen Shin, Yeonjin Yi,* Jung-Dae Kwon, Jin-Seong Park

Organic Electronics, 16, 133 (2015)

Evidence for the changes in hole injection mechanism with a CoPc hole injection layer

Dongguen Shin, Jeihyun Lee, Hyunbok Lee, Hyein Kim, Yeonjin Yi*

Current Applied Physics, 14, 778 (2014)

Strong interfacial dipole formation with thermal evaporation of lithium cobalt oxide for efficient electron injections

Hyunbok Lee, Soohyung Park, Jeihyun Lee, Younjoo Lee, Dongguen Shin, Kwangho Jeong, Yeonjin Yi*

Applied Physics Letters, 102, 3 (2013)