Personal information

Activities

Employment (3)

Kyung Hee University: Dongdaemun-gu, Seoul, KR

2018-03-01 to present | Asst. Prof. (Chemistry)
Employment
Source: Self-asserted source
Bright Walker

Ulsan National Institute of Science and Technology: Ulsan, Ulsan, KR

2016-10-01 to 2018-02-28 | Research Prof. (School of Energy and Chemical Engineering)
Employment
Source: Self-asserted source
Bright Walker

Ulsan National Institute of Science and Technology: Ulsan, Ulsan, KR

2012-01-01 to 2016-09-30 | Post-Doctoral Fellow (School of Energy and Chemical Engineering)
Employment
Source: Self-asserted source
Bright Walker

Education and qualifications (2)

University of California Santa Barbara: Santa Barbara, CA, US

2006-09-01 to 2012-03-01 | Ph. D. (Chemistry)
Education
Source: Self-asserted source
Bright Walker

University of California Berkeley: Berkeley, CA, US

2001-09-01 to 2003-08-01 | B.S. (Chemistry)
Education
Source: Self-asserted source
Bright Walker

Professional activities (2)

Korean Chemical Society: Seoul, KR

Membership
Source: Self-asserted source
Bright Walker

American Chemical Society: Washington, DC, US

2018-01-01 to present
Membership
Source: Self-asserted source
Bright Walker

Works (50 of 109)

Items per page:
Page 1 of 3

Improved voltage and solubility in hybrid non-aqueous redox flow batteries using a molecular 3,4-ethylenedioxythiophene (EDOT) derivative with a stable radical cation state

Journal of Materials Chemistry C
2025 | Journal article
Contributors: Hee Kyung Hwang; Yejoo Park; Jisang Yeom; Yohan Ahn; Yeasin Khan; Jeewoo Lim; Clément Cabanetos; Jung Hwa Seo; Je Seung Lee; Bright Walker
Source: check_circle
Crossref

Enhanced p-doping and efficiency in organic solar cells using Mg and Pd ions at the HTL/PTB7 interface

Next Energy
2025-07 | Journal article
Contributors: Jin Hee Lee; Merve Nur Ekmekci; Yeasin Khan; Bright Walker; Jung Hwa Seo
Source: check_circle
Crossref

Diverse Metal Ion Polyelectrolytes as Hole Transport Layers for Quasi‐2D Perovskite Light‐Emitting Diodes

Advanced Materials Technologies
2025-02-14 | Journal article
Contributors: Faiza Shoukat; Seongbeom Lee; Jin Hee Lee; Yeasin Khan; Bright Walker; Sung Heum Park; Jung Hwa Seo
Source: check_circle
Crossref

Nickel polyelectrolytes as hole transporting materials for organic and perovskite solar cell applications

Energy Advances
2024 | Journal article
Contributors: Jin Hee Lee; Kausar Ali Khawaja; Faiza Shoukat; Yeasin Khan; Do Hui Kim; Shinuk Cho; Bright Walker; Jung Hwa Seo
Source: check_circle
Crossref

Ambipolar Charge Injection and Bright Light Emission in Hybrid Oxide/Polymer Transistors Doped with Poly(9‐Vinylcarbazole) Based Polyelectrolytes

Advanced Materials Technologies
2024-10 | Journal article
Contributors: Yu Jung Park; Hee Kyung Hwang; Yejoo Park; Ju‐Hyeon Lee; Jin Hee Lee; Bright Walker; Han‐Ki Kim; Jung Hwa Seo
Source: check_circle
Crossref

Photoelectron Spectroscopic Study of the Interfacial Electronic Structures of Metal‐Ion Containing Polyelectrolytes on ITO Substrates

Advanced Functional Materials
2024-05 | Journal article
Contributors: Jin Hee Lee; Yeasin Khan; Seunghwan Kim; Ae Jin Choi; Bright Walker; Soohyung Park; Jung Hwa Seo
Source: check_circle
Crossref

Practical organic electronic noses using semi-permeable polymer membranes

Applied Materials Today
2024-04 | Journal article
Contributors: Jae Young Kim; Farjana Haque; Jae Hyun Lee; Yu Jung Park; Jung Hwa Seo; Mallory Mativenga; Bright Walker
Source: check_circle
Crossref

Improved Hole Injection in Hybrid Light‐Emitting Transistors Incorporating Lithium and Copper(II) Poly(Styrene Sulfonate)

Advanced Materials Interfaces
2023-11 | Journal article
Contributors: Yu Jung Park; Subin Park; Jiwon Sim; Jin Hee Lee; Yejoo Park; Aeran Song; Kwun‐Bum Chung; Bright Walker; Jung Hwa Seo
Source: check_circle
Crossref

Solution‐Processed Metal Ion Polyelectrolytes as Hole Transport Materials for Efficient Inverted Perovskite Solar Cells

Advanced Materials Interfaces
2023-06 | Journal article
Contributors: Faiza Shoukat; Ju Hwan Kang; Yeasin Khan; Yu Jung Park; Jin Hee Lee; Bright Walker; Jung Hwa Seo
Source: check_circle
Crossref

A copper-based 2D hybrid perovskite solar absorber as a potential eco-friendly alternative to lead halide perovskites

Journal of Materials Chemistry C
2022 | Journal article
Contributors: Intissar Hamdi; Yeasin Khan; Fatma Aouaini; Jung Hwa Seo; Hyun-Joo Koo; Mark M. Turnbull; Bright Walker; Houcine Naïli
Source: check_circle
Crossref

Highly efficient hybrid light-emitting transistors incorporating MoOx/Ag/MoOx semi-transparent electrodes

Journal of Materials Chemistry C
2022 | Journal article
Contributors: Yu Jung Park; Ae Ran Song; Kwun-Bum Chung; Tae-Youb Kim; Bright Walker; Jung Hwa Seo
Source: check_circle
Crossref

Influence of pH-neutral lithium polystyrenesulfonate polyelectrolyte on the energy band structure and performance of organic solar cells

Materials Advances
2022 | Journal article
Contributors: Merve Nur Ekmekci; Ju Hwan Kang; Yeasin Khan; Jung Hwa Seo; Bright Walker
Source: check_circle
Crossref

Stable ZnS Electron Transport Layer for High-Performance Inverted Cadmium-Free Quantum Dot Light-Emitting Diodes

ACS Applied Materials & Interfaces
2022-12-21 | Journal article
Contributors: Nagarjuna Naik Mude; Yeasin Khan; Truong Thi Thuy; Bright Walker; Jang Hyuk Kwon
Source: check_circle
Crossref

Understanding interfacial energy structures in organic solar cells using photoelectron spectroscopy: A review

Journal of Applied Physics
2022-08-07 | Journal article
Contributors: Ju Hwan Kang; Jin Hee Lee; Bright Walker; Jung Hwa Seo; Gap Soo Chang
Source: check_circle
Crossref

Synthesis of fluorescent organic nano-dots and their application as efficient color conversion layers

Nature Communications
2022-04-04 | Journal article
Contributors: Yeasin Khan; Soonjae Hwang; Ramanaskanda Braveenth; Young Hun Jung; Bright Walker; Jang Hyuk Kwon
Source: check_circle
Crossref

Cu/graphene hybrid transparent conducting electrodes for organic photovoltaic devices

Carbon
2021 | Journal article
EID:

2-s2.0-85091085849

Part of ISBN:

00086223

Contributors: Kang, J.H.; Choi, S.; Park, Y.J.; Park, J.S.; Cho, N.S.; Cho, S.; Walker, B.; Choi, D.S.; Shin, J.-W.; Seo, J.H.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

A pH‐Neutral Polyelectrolyte Hole Transport Layer for Improved Energy Band Structure at the Anode/PTB7 Junction and Improved Solar Cell Performance

Solar RRL
2021-11 | Journal article
Part of ISSN: 2367-198X
Part of ISSN: 2367-198X
Source: Self-asserted source
Bright Walker
grade
Preferred source (of 2)‎

Lithium Polystyrene Sulfonate as a Hole Transport Material in Inverted Perovskite Solar Cells

Chemistry – An Asian Journal
2021-10-18 | Journal article
Part of ISSN: 1861-4728
Part of ISSN: 1861-471X
Source: Self-asserted source
Bright Walker

Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells

Nature
2021-04-15 | Journal article
Part of ISSN: 0028-0836
Part of ISSN: 1476-4687
Source: Self-asserted source
Bright Walker

Exploiting Ternary Blends to Accurately Control the Coloration of Semitransparent, Non‐Fullerene, Organic Solar Cells

Solar RRL
2021-03 | Journal article
Part of ISSN: 2367-198X
Part of ISSN: 2367-198X
Source: Self-asserted source
Bright Walker

A Simple Cu(II) Polyelectrolyte as a Method to Increase the Work Function of Electrodes and Form Effective p ‐Type Contacts in Perovskite Solar Cells

Advanced Functional Materials
2021-03-04 | Journal article
Part of ISSN: 1616-301X
Part of ISSN: 1616-3028
Source: Self-asserted source
Bright Walker
grade
Preferred source (of 2)‎

Aesthetic and colorful: Dichroic polymer solar cells using high-performance Fabry-Pérot etalon electrodes with a unique Sb<inf>2</inf>O<inf>3</inf> cavity

Nano Energy
2020 | Journal article
EID:

2-s2.0-85088872739

Part of ISBN:

22112855

Contributors: Yeom, H.R.; Song, S.; Park, S.Y.; Ryu, H.S.; Kim, J.W.; Heo, J.; Cho, H.W.; Walker, B.; Ko, S.-J.; Woo, H.Y. et al.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Cationic polyelectrolytes as convenient electron extraction layers in perovskite solar cells

Dyes and Pigments
2020 | Journal article
EID:

2-s2.0-85088830729

Part of ISBN:

18733743 01437208

Contributors: Kang, J.H.; Park, Y.J.; Khan, Y.; Ahn, Y.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Dichroic Sb<inf>2</inf>O<inf>3</inf>/Ag/Sb<inf>2</inf>O<inf>3</inf> Electrodes for Colorful Semitransparent Organic Solar Cells

Solar RRL
2020 | Journal article
EID:

2-s2.0-85087463315

Part of ISBN:

2367198X

Contributors: Song, S.; Cho, H.W.; Jeong, J.; Yoon, Y.J.; Park, S.Y.; Song, S.; Woo, B.H.; Jun, Y.C.; Walker, B.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Effect of Plasmonic Ag Nanoparticles on the Performance of Inverted Perovskite Solar Cells

Advanced Engineering Materials
2020 | Journal article
EID:

2-s2.0-85074954055

Part of ISBN:

15272648 14381656

Contributors: Ali, A.; Kang, J.H.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Hybrid lead-halide polyelectrolytes as interfacial electron extraction layers in inverted organic solar cells

Polymers
2020 | Journal article
EID:

2-s2.0-85087047138

Part of ISBN:

20734360

Contributors: Lee, J.H.; Park, Y.J.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Influence of Film Thickness on the Electronic Band Structure and Optical Properties of P–I–N CH<inf>3</inf>NH<inf>3</inf>PbI<inf>3−x</inf>Cl<inf>x</inf> Perovskite Solar Cells

Advanced Engineering Materials
2020 | Journal article
EID:

2-s2.0-85084601843

Part of ISBN:

15272648 14381656

Contributors: Ali, A.; Cha, M.J.; Kang, J.H.; Park, Y.J.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Ionic moieties in organic and hybrid semiconducting devices: Influence on energy band structures and functions

Journal of Materials Chemistry C
2020 | Journal article
EID:

2-s2.0-85094615195

Part of ISBN:

20507526 20507534

Contributors: Khan, Y.; Ahn, Y.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Light-Emitting Transistors with High Color Purity Using Perovskite Quantum Dot Emitters

ACS Applied Materials and Interfaces
2020 | Journal article
EID:

2-s2.0-85089472919

Part of ISBN:

19448252 19448244

Contributors: Park, Y.J.; Kim, M.; Song, A.; Kim, J.Y.; Chung, K.-B.; Walker, B.; Seo, J.H.; Wang, D.H.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Tungsten-doped zinc oxide and indium-zinc oxide films as high-performance electron-transport layers in N-I-P perovskite solar cells

Polymers
2020 | Journal article
EID:

2-s2.0-85086631303

Part of ISBN:

20734360

Contributors: Kang, J.H.; Song, A.; Park, Y.J.; Seo, J.H.; Walker, B.; Chung, K.-B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Waterproof perovskites: High fluorescence quantum yield and stability from a methylammonium lead bromide/formate mixture in water

Journal of Materials Chemistry C
2020 | Journal article
EID:

2-s2.0-85084605443

Part of ISBN:

20507526 20507534

Contributors: Khan, Y.; Ahn, Y.; Lee, H.; Jeong, J.; Shin, Y.S.; Lee, J.S.; Kwon, J.H.; Kim, J.Y.; Kim, H.S.; Seo, J.H. et al.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Depth-dependent electronic band structure at the Au/CH<inf>3</inf>NH<inf>3</inf>PbI<inf>3-x</inf>Cl<inf>x</inf> junction

Physical Chemistry Chemical Physics
2019 | Journal article
EID:

2-s2.0-85068872248

Part of ISBN:

14639076

Contributors: Cha, M.J.; Park, Y.J.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Effect of counter-ions on the properties and performance of non-conjugated polyelectrolyte interlayers in solar cell and transistor devices

RSC Advances
2019 | Journal article
EID:

2-s2.0-85068540551

Part of ISBN:

20462069

Contributors: Kang, J.H.; Park, Y.J.; Cha, M.J.; Yi, Y.; Song, A.; Chung, K.-B.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Hybrid ZnON–Organic Light Emitting Transistors with Low Threshold Voltage &lt;5 V

Advanced Optical Materials
2019 | Journal article
EID:

2-s2.0-85059905423

Part of ISBN:

21951071

Contributors: Park, Y.J.; Song, A.; Walker, B.; Seo, J.H.; Chung, K.-B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Morphology-dependent hole transfer under negligible HOMO difference in non-fullerene acceptor-based ternary polymer solar cells

ACS Applied Materials and Interfaces
2019 | Journal article
EID:

2-s2.0-85061940479

Part of ISBN:

19448252 19448244

Contributors: Kim, T.; Heo, J.; Lee, J.Y.; Yoon, Y.J.; Lee, T.H.; Shin, Y.S.; Kim, I.-S.; Kim, H.; Jeong, M.S.; Hwang, I.-W. et al.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Pseudohalides in Lead-Based Perovskite Semiconductors

Advanced Materials
2019 | Journal article
EID:

2-s2.0-85061027333

Part of ISBN:

15214095 09359648

Contributors: Walker, B.; Kim, G.-H.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Selenite-catalyzed oxidative carbonylation of alcohols to dialkyl carbonates

Applied Catalysis B: Environmental
2019 | Journal article
EID:

2-s2.0-85054846619

Part of ISBN:

09263373

Contributors: Khan, Y.; Chung, C.I.; Oh, J.J.; Nguyen, T.T.; Lee, H.J.; Cheong, M.; Walker, B.; Kim, H.S.; Kim, Y.J.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Synergistic combination of amorphous indium oxide with tantalum pentoxide for efficient electron transport in low-power electronics

Journal of Materials Chemistry C
2019 | Journal article
EID:

2-s2.0-85064267905

Part of ISBN:

20507526 20507534

Contributors: Park, S.Y.; Heo, J.; Yoon, Y.J.; Kim, J.W.; Jang, H.; Walker, B.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Alkoxybenzothiadiazole-Based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications

ACS Applied Materials and Interfaces
2018 | Journal article
EID:

2-s2.0-85041447847

Part of ISBN:

19448252 19448244

Contributors: Park, S.Y.; Li, Y.; Kim, J.; Lee, T.H.; Walker, B.; Woo, H.Y.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Formamidinium-based planar heterojunction perovskite solar cells with alkali carbonate-doped zinc oxide layer

RSC Advances
2018 | Journal article
EID:

2-s2.0-85049829313

Part of ISBN:

20462069

Contributors: Jeong, J.; Kim, H.; Yoon, Y.J.; Walker, B.; Song, S.; Heo, J.; Park, S.Y.; Kim, J.W.; Kim, G.-H.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Implementation of Low-Power Electronic Devices Using Solution-Processed Tantalum Pentoxide Dielectric

Advanced Functional Materials
2018 | Journal article
EID:

2-s2.0-85046546516

Part of ISBN:

16163028 1616301X

Contributors: Heo, J.; Park, S.Y.; Kim, J.W.; Song, S.; Yoon, Y.J.; Jeong, J.; Jang, H.; Lee, K.T.; Seo, J.H.; Walker, B. et al.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Nanoparticle-Enhanced Silver-Nanowire Plasmonic Electrodes for High-Performance Organic Optoelectronic Devices

Advanced Materials
2018 | Journal article
EID:

2-s2.0-85047553591

Part of ISBN:

15214095 09359648

Contributors: Kim, T.; Kang, S.; Heo, J.; Cho, S.; Kim, J.W.; Choe, A.; Walker, B.; Shanker, R.; Ko, H.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Non-halogenated diphenyl-chalcogenide solvent processing additives for high-performance polymer bulk-heterojunction solar cells

RSC Advances
2018 | Journal article
EID:

2-s2.0-85057750689

Part of ISBN:

20462069

Contributors: Park, S.Y.; Song, S.; Yoon, Y.J.; Lee, T.H.; An, N.G.; Walker, B.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Reversible, Full-Color Luminescence by Post-treatment of Perovskite Nanocrystals

Joule
2018 | Journal article
EID:

2-s2.0-85056419097

Part of ISBN:

25424351

Contributors: Yoon, Y.J.; Lee, K.T.; Lee, T.K.; Kim, S.H.; Shin, Y.S.; Walker, B.; Park, S.Y.; Heo, J.; Lee, J.; Kwak, S.K. et al.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

A universal processing additive for high-performance polymer solar cells

RSC Advances
2017 | Journal article
EID:

2-s2.0-85010659664

Part of ISBN:

20462069

Contributors: Lee, T.H.; Park, S.Y.; Walker, B.; Ko, S.-J.; Heo, J.; Woo, H.Y.; Choi, H.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Effect of Heterocyclic Anchoring Sequence on the Properties of Dithienogermole-Based Solar Cells

ACS Applied Materials and Interfaces
2017 | Journal article
EID:

2-s2.0-85014289255

Part of ISBN:

19448252 19448244

Contributors: Walker, B.; Han, D.; Moon, M.; Park, S.Y.; Kim, K.-H.; Kim, J.Y.; Yang, C.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Efficiency Exceeding 11% in Tandem Polymer Solar Cells Employing High Open-Circuit Voltage Wide-Bandgap Π-Conjugated Polymers

Advanced Energy Materials
2017 | Journal article
EID:

2-s2.0-85024098470

Part of ISBN:

16146840 16146832

Contributors: Song, S.; Kranthiraja, K.; Heo, J.; Kim, T.; Walker, B.; Jin, S.-H.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Fluorine Functionalized Graphene Nano Platelets for Highly Stable Inverted Perovskite Solar Cells

Nano Letters
2017 | Journal article
EID:

2-s2.0-85031286798

Part of ISBN:

15306992 15306984

Contributors: Kim, G.-H.; Jang, H.; Yoon, Y.J.; Jeong, J.; Park, S.Y.; Walker, B.; Jeon, I.-Y.; Jo, Y.; Yoon, H.; Kim, M. et al.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier

Improved Performance in n-Type Organic Field-Effect Transistors via Polyelectrolyte-Mediated Interfacial Doping

Advanced Electronic Materials
2017 | Journal article
EID:

2-s2.0-85030110446

Part of ISBN:

2199160X

Contributors: Park, Y.J.; Cha, M.J.; Yoon, Y.J.; Cho, S.; Kim, J.Y.; Seo, J.H.; Walker, B.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
grade
Preferred source (of 2)‎

Interfacial engineering for highly efficient organic solar cells

Current Applied Physics
2017 | Journal article
EID:

2-s2.0-85007494964

Part of ISBN:

15671739

Contributors: Walker, B.; Choi, H.; Kim, J.Y.
Source: Self-asserted source
Bright Walker via Scopus - Elsevier
Items per page:
Page 1 of 3

Peer review (18 reviews for 8 publications/grants)

Review activity for ACS applied electronic materials. (1)
Review activity for ACS applied energy materials. (3)
Review activity for ACS applied materials & interfaces. (6)
Review activity for Advanced materials interfaces. (1)
Review activity for Advanced materials. (2)
Review activity for Advanced optical materials (3)
Review activity for Angewandte Chemie. (1)
Review activity for Nano letters. (1)