K
Kwanghee Lee
Researcher at Gwangju Institute of Science and Technology
Publications - 311
Citations - 25391
Kwanghee Lee is an academic researcher from Gwangju Institute of Science and Technology. The author has contributed to research in topics: Polymer solar cell & Organic solar cell. The author has an hindex of 50, co-authored 295 publications receiving 23260 citations. Previous affiliations of Kwanghee Lee include Center for Advanced Materials & University of California, Santa Barbara.
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Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology
TL;DR: By applying specific fabrication conditions summarized in the Experimental section and post-production annealing at 150°C, polymer solar cells with power-conversion efficiency approaching 5% were demonstrated.
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Bulk heterojunction solar cells with internal quantum efficiency approaching 100
Sung Heum Park,Sung Heum Park,Anshuman Roy,Serge Beaupré,Shinuk Cho,Shinuk Cho,Nelson E. Coates,Ji Sun Moon,Ji Sun Moon,Daniel Moses,Mario Leclerc,Kwanghee Lee,Kwanghee Lee,Alan J. Heeger,Alan J. Heeger +14 more
TL;DR: In this paper, a polymer solar cell based on a bulk hetereojunction design with an internal quantum efficiency of over 90% across the visible spectrum (425 nm to 575 nm) is reported.
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Efficient tandem polymer solar cells fabricated by all-solution processing.
Jin Young Kim,Jin Young Kim,Kwanghee Lee,Kwanghee Lee,Nelson E. Coates,Nelson E. Coates,Daniel Moses,Daniel Moses,Thuc-Quyen Nguyen,Thuc-Quyen Nguyen,Mark Dante,Mark Dante,Alan J. Heeger,Alan J. Heeger +13 more
TL;DR: Tandem solar cells, in which two solar cells with different absorption characteristics are linked to use a wider range of the solar spectrum, were fabricated with each layer processed from solution with the use of bulk heterojunction materials comprising semiconducting polymers and fullerene derivatives.
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New Architecture for High-Efficiency Polymer Photovoltaic Cells Using Solution-Based Titanium Oxide as an Optical Spacer
Jin Young Kim,Jin Young Kim,Sun Hee Kim,Hyun-Ho Lee,Kwanghee Lee,Wanli Ma,Xiong Gong,Alan J. Heeger +7 more
TL;DR: In this paper, an optical spacer between the active layer and the Al electrode is proposed to redistribute the light intensity inside the device by introducing an optical sensor. But the spacer is not suitable for the case of thin-film photovoltaic cells.
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Highly conductive PEDOT:PSS nanofibrils induced by solution-processed crystallization.
Nara Kim,Seyoung Kee,Seoung Ho Lee,Byoung Hoon Lee,Yung Ho Kahng,Yong-Ryun Jo,Bong-Joong Kim,Kwanghee Lee +7 more
TL;DR: The fabrication of electronic devices based on organic materials, known as ’printed electronics’, is an emerging technology due to its unprecedented advantages involving fl exibility, light weight, and portability, which will ultimately lead to future ubiquitous applications.