T
Tae Kyu Ahn
Researcher at Sungkyunkwan University
Publications - 129
Citations - 15016
Tae Kyu Ahn is an academic researcher from Sungkyunkwan University. The author has contributed to research in topics: Perovskite (structure) & Quantum dot. The author has an hindex of 51, co-authored 123 publications receiving 13044 citations. Previous affiliations of Tae Kyu Ahn include University of Notre Dame & Lawrence Berkeley National Laboratory.
Papers
More filters
Journal ArticleDOI
Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems
Gregory S. Engel,Gregory S. Engel,Tessa R. Calhoun,Tessa R. Calhoun,Elizabeth L. Read,Elizabeth L. Read,Tae Kyu Ahn,Tae Kyu Ahn,Tomáš Mančal,Tomáš Mančal,Tomáš Mančal,Yuan-Chung Cheng,Yuan-Chung Cheng,Robert E. Blankenship,Graham R. Fleming,Graham R. Fleming +15 more
TL;DR: Previous two-dimensional electronic spectroscopy investigations of the FMO bacteriochlorophyll complex are extended, and direct evidence is obtained for remarkably long-lived electronic quantum coherence playing an important part in energy transfer processes within this system is obtained.
Journal ArticleDOI
Hysteresis-less inverted CH3NH3PbI3 planar perovskite hybrid solar cells with 18.1% power conversion efficiency
TL;DR: In this paper, an inverted MAPbI3 planar hybrid solar cells with 18.1% average power conversion efficiency was fabricated by depositing dense pinhole-free MAPBI3 perovskite on a PEDOT:PSS/ITO substrate via a single-step spin-coating of solubility controlled MAPI3 solution.
Journal ArticleDOI
Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells through SnF2-Pyrazine Complex
Seon Joo Lee,Seong Sik Shin,Young Chan Kim,Dasom Kim,Tae Kyu Ahn,Jun Hong Noh,Jangwon Seo,Sang Il Seok +7 more
TL;DR: This work reports the homogeneous dispersion of SnF2 via the formation of the SnF 2-pyrazine complex, and fabricated FASnI3 PSCs with high reproducibility, achieving a high power conversion efficiency of 4.8%.
Journal ArticleDOI
Highly efficient and bending durable perovskite solar cells: toward a wearable power source
Byeong Jo Kim,Dong Hoe Kim,Yoo-Yong Lee,Hee Won Shin,Gill Sang Han,Jung Sug Hong,Khalid Mahmood,Tae Kyu Ahn,Young-Chang Joo,Kug Sun Hong,Nam-Gyu Park,Sangwook Lee,Hyun Suk Jung +12 more
TL;DR: In this article, a flexible perovskite solar cell exhibiting 12.2% power conversion efficiency (PCE) while using a low-temperature technology for the fabrication of a compact charge collection layer is presented.
Journal ArticleDOI
Architecture of a charge-transfer state regulating light harvesting in a plant antenna protein
Tae Kyu Ahn,Thomas J. Avenson,Matteo Ballottari,Yuan-Chung Cheng,Krishna K. Niyogi,Krishna K. Niyogi,Roberto Bassi,Graham R. Fleming,Graham R. Fleming +8 more
TL;DR: It is proposed that reversible conformational changes in CP29 can “tune” the electronic coupling between the chlorophylls in this dimer, thereby modulating the energy of thechlorophyll-zeaxanthin charge-transfer state and switching on and off the charge- transfer quenching during qE.