P
Peter K. H. Ho
Researcher at National University of Singapore
Publications - 132
Citations - 9814
Peter K. H. Ho is an academic researcher from National University of Singapore. The author has contributed to research in topics: Organic semiconductor & Thin film. The author has an hindex of 42, co-authored 129 publications receiving 9248 citations. Previous affiliations of Peter K. H. Ho include Alcatel-Lucent & University of Cambridge.
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Journal ArticleDOI
General observation of n-type field-effect behaviour in organic semiconductors
Lay-Lay Chua,Lay-Lay Chua,Jana Zaumseil,Jui Fen Chang,Eric C.W. Ou,Peter K. H. Ho,Peter K. H. Ho,Henning Sirringhaus,Richard H. Friend +8 more
TL;DR: It is demonstrated that the use of an appropriate hydroxyl-free gate dielectric—such as a divinyltetramethylsiloxane-bis(benzocyclobutene) derivative (BCB; ref. 6)—can yield n-channel FET conduction in most conjugated polymers, revealing that electrons are considerably more mobile in these materials than previously thought.
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Molecular-scale interface engineering for polymer light-emitting diodes
Peter K. H. Ho,Ji-Seon Kim,J. H. Burroughes,Heinrich Becker,Sam Fong Yau Li,Thomas M. Brown,Franco Cacialli,Richard H. Friend +7 more
TL;DR: It is shown how molecular-scale engineering of these interlayers to form stepped and graded electronic profiles can lead to remarkably efficient single-layer polymer LEDs that exhibit nearly balanced injection, near-perfect recombination, and greatly reduced pre-turn-on leakage currents.
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Electroluminescence emission pattern of organic light-emitting diodes: Implications for device efficiency calculations
TL;DR: In this paper, a simple half-space optical model that accounts for optical interference effects of the metal cathode-reflector is developed to extract the location and orientation of the emitting dipoles from these patterns.
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Giant broadband nonlinear optical absorption response in dispersed graphene single sheets
Geok-Kieng Lim,Geok-Kieng Lim,Zhi-Li Chen,Jenny Clark,Roland G. S. Goh,Wee-Hao Ng,Hong-Wee Tan,Richard H. Friend,Richard H. Friend,Peter K. H. Ho,Lay-Lay Chua,Lay-Lay Chua +11 more
TL;DR: In this article, the authors show that dispersed functionalized graphene can exhibit broadband nonlinear optical absorption at fluences well below the damage threshold and obtain an optical energy-limiting onset benchmark of 10 mJ cm−2 at a linear transmittance of 70% for nanosecond visible and near-infrared pulses.
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Band‐like Transport in Surface‐Functionalized Highly Solution‐Processable Graphene Nanosheets
Shuai Wang,Perq-Jon Chia,Lay-Lay Chua,Li-Hong Zhao,Rui-Qi Png,Sankaran Sivaramakrishnan,Mi Zhou,Roland G. S. Goh,Richard H. Friend,Richard H. Friend,Andrew T. S. Wee,Peter K. H. Ho +11 more