Search Results - "Ho, Peter K.H."

Multivalent anions as universal latent electron donors by Tang, Cindy G., Syafiqah, Mazlan Nur, Koh, Qi-Mian, Zhao, Chao, Zaini, Jamal, Seah, Qiu-Jing, Cass, Michael J., Humphries, Martin J., Grizzi, Ilaria, Burroughes, Jeremy H., Png, Rui-Qi, Chua, Lay-Lay, Ho, Peter K. H.

“…Electrodes with low work functions are required to efficiently inject electrons into semiconductor devices. However, when the work function drops below about…”
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Giant broadband nonlinear optical absorption response in dispersed graphene single sheets by Lim, Geok-Kieng, Chen, Zhi-Li, Clark, Jenny, Goh, Roland G. S., Ng, Wee-Hao, Tan, Hong-Wee, Friend, Richard H., Ho, Peter K. H., Chua, Lay-Lay

“…Under intense laser excitation, thin films and suspensions of graphite and its nanostructure, including carbon black, nanotubes, few-layer graphenes and…”
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Madelung and Hubbard interactions in polaron band model of doped organic semiconductors by Png, Rui-Qi, Ang, Mervin C.Y., Teo, Meng-How, Choo, Kim-Kian, Tang, Cindy Guanyu, Belaineh, Dagmawi, Chua, Lay-Lay, Ho, Peter K.H.

“…The standard polaron band model of doped organic semiconductors predicts that density-of-states shift into the π – π * gap to give a partially filled polaron…”
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Reliable unencapsulated Ag/Ag2S micro-reference electrodes for battery research and other applications in organic media by Tan, Neriah Yan-Jie, Wang, Yu, Ang, Siaw-Wei, Seah, Qiu-Jing, Sun, Ming-Ming, Png, Rui-Qi, Ho, Peter K.H., Chua, Lay-Lay

“…[Display omitted] •Fast, simple, reproducible method to fabricate Ag/Ag2S micro-reference electrode.•Reaction of Ag strip/wire with sulfur vapor at 105 °C.•No…”
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High internal quantum efficiency in fullerene solar cells based on crosslinked polymer donor networks by Liu, Bo, Png, Rui-Qi, Zhao, Li-Hong, Chua, Lay-Lay, Friend, Richard H., Ho, Peter K.H.

“…The power conversion efficiency of organic photovoltaic cells depends crucially on the morphology of their donor–acceptor heterostructure. Although tremendous…”
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Suppressing Recombination in Polymer Photovoltaic Devices via Energy-Level Cascades by Tan, Zhi-Kuang, Johnson, Kerr, Vaynzof, Yana, Bakulin, Artem A., Chua, Lay-Lay, Ho, Peter K. H., Friend, Richard H.

“…An energy cascading structure is designed in a polymer photovoltaic device to suppress recombination and improve quantum yields. By the insertion of a thin…”
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Evaluation of Built-In Potential and Loss Mechanisms at Contacts in Organic Solar Cells: Device Model Parameterization, Validation, and Prediction by Liu, Bo, Png, Rui-Qi, Tan, Jun-Kai, Ho, Peter K. H.

“…Maximizing the power conversion efficiency of organic solar cells requires the simultaneous optimization of its short‐circuit current density, fill factor, and…”
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Characterization of ohmic contacts in polymer organic field-effect transistors by Yang, Jin-Guo, Seah, Wei-Ling, Guo, Han, Tan, Jun-Kai, Zhou, Mi, Matsubara, Ryosuke, Nakamura, Masakazu, Png, Rui-Qi, Ho, Peter K.H., Chua, Lay-Lay

“…It is well known that contact resistance Rc limits the performance of organic field-effect transistors (OFETs) that have high field-effect mobilities (μFET ≳…”
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Electrical degradation of triarylamine-based light-emitting polymer diodes monitored by micro-Raman spectroscopy by Kim, Ji-Seon, Ho, Peter K.H., Murphy, Craig E., Seeley, Alex J.A.B., Grizzi, Ilaria, Burroughes, Jeremy H., Friend, Richard H.

“…Although much progress has been made in improving polymer light-emitting diode performance, there has been little work to address device intrinsic degradation…”
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Doped polymer semiconductors with ultrahigh and ultralow work functions for ohmic contacts by Tang, Cindy G., Ang, Mervin C. Y., Choo, Kim-Kian, Keerthi, Venu, Tan, Jun-Kai, Syafiqah, Mazlan Nur, Kugler, Thomas, Burroughes, Jeremy H., Png, Rui-Qi, Chua, Lay-Lay, Ho, Peter K. H.

“…A general strategy for producing solution-processed doped polymers with the extreme work functions that are required to make good ohmic contacts to…”
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Ohmic transition at contacts key to maximizing fill factor and performance of organic solar cells by Tan, Jun-Kai, Png, Rui-Qi, Zhao, Chao, Ho, Peter K. H.

“…While thermodynamic detailed balance limits the maximum power conversion efficiency of a solar cell, the quality of its contacts can further limit the actual…”
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A general method for transferring graphene onto soft surfaces by Song, Jie, Kam, Fong-Yu, Png, Rui-Qi, Seah, Wei-Ling, Zhuo, Jing-Mei, Lim, Geok-Kieng, Ho, Peter K. H., Chua, Lay-Lay

“…Recent advances in chemical vapour deposition have led to the fabrication of large graphene sheets on metal foils for use in research and development. However,…”
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Improving organic photovoltaic cells by forcing electrode work function well beyond onset of Ohmic transition by Zhao, Chao, Tang, Cindy G., Seah, Zong-Long, Koh, Qi-Mian, Chua, Lay-Lay, Png, Rui-Qi, Ho, Peter K. H.

“…As electrode work function rises or falls sufficiently, the organic semiconductor/electrode contact reaches Fermi-level pinning, and then, few tenths of an…”
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Evidence for Morphology Control by Polyelectrolyte Templating in PEDT:PSSH by Koh, Qi‐Mian, Seah, Qiu‐Jing, Yang, Jin‐Cheng, Mazlan, Nur Syafiqah, Hoh, Quan‐En, Seah, Zong‐Long, Png, Rui‐Qi, Ho, Peter K.H., Chua, Lay‐Lay

“…Despite decades of research, the fundamental question of structure and morphology of the poly(3,‐4‐ethylenedioxythiophene):poly(styrene sulfonate) complex…”
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General observation of n-type field-effect behaviour in organic semiconductors by Ho, Peter K.-H, Friend, Richard H, Chua, Lay-Lay, Ou, Eric C.-W, Zaumseil, Jana, Chang, Jui-Fen, Sirringhaus, Henning

“…Organic semiconductors have been the subject of active research for over a decade now, with applications emerging in light-emitting displays and printable…”
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Water binding and hygroscopicity in π-conjugated polyelectrolytes by Tang, Cindy Guanyu, Syafiqah, Mazlan Nur, Koh, Qi-Mian, Ang, Mervin Chun-Yi, Choo, Kim-Kian, Sun, Ming-Ming, Callsen, Martin, Feng, Yuan-Ping, Chua, Lay-Lay, Png, Rui-Qi, Ho, Peter K. H.

“…The presence of water strongly influences structure, dynamics and properties of ion-containing soft matter. Yet, the hydration of such matter is not well…”
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High-performance polymer semiconducting heterostructure devices by nitrene-mediated photocrosslinking of alkyl side chains by Chan, Hardy S. O, Khong, Siong-Hee, Liu, Bo, Burroughes, Jeremy H, Chua, Lay-Lay, Png, Rui-Qi, Chia, Perq-Jon, Zhou, Mi, Friend, Richard H, Ho, Peter K. H, Tang, Jie-Cong, Sivaramakrishnan, Sankaran

“…Heterostructures are central to the efficient manipulation of charge carriers, excitons and photons for high-performance semiconductor devices. Although these…”
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Doping of Organic Semiconductors Using Molybdenum Trioxide: a Quantitative Time-Dependent Electrical and Spectroscopic Study by Gwinner, Michael C., Pietro, Riccardo Di, Vaynzof, Yana, Greenberg, Kathryn J., Ho, Peter K. H., Friend, Richard H., Sirringhaus, Henning

“…Doping of organic semiconductors (OSCs) with transition metal oxides such as molybdenum trioxide (MoO3) has been used as a powerful method to overcome common…”
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The Dependence of Device Dark Current on the Active-Layer Morphology of Solution-Processed Organic Photodetectors by Keivanidis, Panagiotis E., Ho, Peter K. H., Friend, Richard H., Greenham, Neil C.

“…Organic photodiodes are presented that utilize solution‐processed perylene diimide bulk heterojunctions as the device photoactive layer. The polymer…”
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Band-like Transport in Surface-Functionalized Highly Solution-Processable Graphene Nanosheets by Wang, Shuai, Chia, Perq-Jon, Chua, Lay-Lay, Zhao, Li-Hong, Png, Rui-Qi, Sivaramakrishnan, Sankaran, Zhou, Mi, Goh, Roland G.-S., Friend, Richard H., Wee, Andrew T.-S., Ho, Peter K.-H.

“…Surface‐functionalised graphene oxide nanosheets are obtained from substoichiometric oxidation of graphite, exfoliation, and in situ functionalization…”
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