Z
Zi En Ooi
Researcher at Agency for Science, Technology and Research
Publications - 53
Citations - 1107
Zi En Ooi is an academic researcher from Agency for Science, Technology and Research. The author has contributed to research in topics: Organic solar cell & Heterojunction. The author has an hindex of 16, co-authored 48 publications receiving 982 citations. Previous affiliations of Zi En Ooi include Imperial College London.
Papers
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Journal ArticleDOI
High mobility organic thin film transistor and efficient photovoltaic devices using versatile donor–acceptor polymer semiconductor by molecular design
Prashant Sonar,Samarendra P. Singh,Yuning Li,Yuning Li,Zi En Ooi,Tae Jun Ha,Ivy Hoi Ka Wong,Mui Siang Soh,Ananth Dodabalapur,Ananth Dodabalapur +9 more
TL;DR: In this paper, a donor-acceptor based solution processable low band gap polymer semiconductor, PDPP-TNT, was synthesized via Suzuki coupling using condensed diketopyrrolopyrrole (DPP) as an acceptor moiety with a fused naphthalene donor building block in the polymer backbone.
Journal ArticleDOI
Identifying Fundamental Limitations in Halide Perovskite Solar Cells
Wei Lin Leong,Zi En Ooi,Dharani Sabba,Chenyi Yi,Shaik M. Zakeeruddin,Michael Graetzel,Jeffrey M. Gordon,Eugene A. Katz,Nripan Mathews +8 more
TL;DR: The recombination activation energy is in good agreement with the perovskite's bandgap energy, thereby placing an upper bound on the open-circuit voltage and reinforcing that the cells are not hindered by insufficient thermally activated mobility or carrier trapping by deep defects.
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Solution processable bulk-heterojunction solar cells using a small molecule acceptor
Zi En Ooi,Zi En Ooi,Teck Lip Dexter Tam,Richard Yee Cheong Shin,Zhi-Kuan Chen,Thomas Kietzke,Thomas Kietzke,Alan Sellinger,Alan Sellinger,Martin Baumgarten,Klaus Müllen,John C. deMello +11 more
TL;DR: In this article, a small-molecule electron acceptor based on 2-vinyl-4,5-dicyanoimidazole [Vinazene™] was used in solution processed organic solar cells.
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Roadmap on finding chiral valleys: screening 2D materials for valleytronics
Fabio Bussolotti,Hiroyo Kawai,Zi En Ooi,Vijila Chellappan,Dickson Thian,Ai Lin Christina Pang,Kuan Eng Johnson Goh,Kuan Eng Johnson Goh +7 more
Journal ArticleDOI
Poly(2,5-bis(2-octyldodecyl)-3,6-di(furan-2-yl)-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione-co-thieno[3,2-b]thiophene): a high performance polymer semiconductor for both organic thin film transistors and organic photovoltaics.
Yuning Li,Yuning Li,Prashant Sonar,Samarendra P. Singh,Zi En Ooi,Erica S. H. Lek,Melissa Q. Y. Loh +6 more
TL;DR: A new diketopyrrolopyrrole (DPP)-containing donor-acceptor polymer, PDBF-co-TT, is synthesized and studied as a semiconductor in organic thin film transistors (OTFTs) and organic photovoltaics (OPVs).