J
Jaejung Ko
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 47
Citations - 2470
Jaejung Ko is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Dye-sensitized solar cell & Solar cell. The author has an hindex of 20, co-authored 47 publications receiving 2392 citations. Previous affiliations of Jaejung Ko include Dankook University & Kyung Hee University.
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Journal ArticleDOI
Molecular engineering of organic sensitizers for solar cell applications.
Sung-Kwan Kim,Lee Jk,Sang Ook Kang,Jaejung Ko,Jun-Ho Yum,Simona Fantacci,De Angelis F,Di Censo D,Mohammad Khaja Nazeeruddin,Michael Grätzel +9 more
TL;DR: The results show that the cyanoacrylic acid groups are essentially coplanar with respect to the thiophene units, reflecting the strong conjugation across theThiophene-cyanoac acrylic groups.
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High open-circuit voltage solid-state dye-sensitized solar cells with organic dye.
Peter Chen,Jun-Ho Yum,Filippo De Angelis,Edoardo Mosconi,Simona Fantacci,Soo-Jin Moon,Robin Humphry Baker,Jaejung Ko,Md. K. Nazeeruddin,Michael Grätzel +9 more
TL;DR: A negative conduction band shift was observed due to the favorable dipolar field exerted by the JK2 sensitizer to the TiO(2) surface, at variance with heteroleptic Ru(II)-dyes for which an opposite dipole effect was found, providing an increased V(oc).
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Co-sensitization of Organic Dyes for Efficient Ionic Liquid Electrolyte-Based Dye-Sensitized Solar Cells
Dai-Bin Kuang,Pablo Walter,Frank Nüesch,Sanghoon Kim,Jaejung Ko,Pascal Comte,Shaik M. Zakeeruddin,Mohammad Khaja Nazeeruddin,Michael Grätzel +8 more
TL;DR: The co-sensitized organic dye solar cell based on the newly developed binary ionic liquid (solvent-free) electrolyte gives 6.4% under AM 1.5 sunlight at 100 mW/cm2 irradiation, which is higher than that of individual dye-s Sensitized solar cells.
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Synthesis and Photovoltaic Properties of Efficient Organic Dyes Containing the Benzo[b]furan Moiety for Solar Cells
TL;DR: New organic dyes composed of the benzo[b]furan donor, thiophene-conjugated bridge, and cyano acrylic acid acceptor have been newly synthesized through the one-pot coupling cyclization key step.
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Molecular engineering of organic sensitizers containing p-phenylene vinylene unit for dye-sensitized solar cells.
Chulwoo Kim,Hyunbong Choi,Sang-Hoon Kim,Chul Baik,Kihyung Song,Moon-Sung Kang,Sang Ook Kang,Jaejung Ko +7 more
TL;DR: Three organic sensitizers containing bis-dimethylfluorenyl amino donor and a cyanoacrylic acid acceptor bridged by p-phenylene vinylene unit were synthesized and the maximum power conversion efficiency of JK-59 reached 7.02%.