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Chang-Min Keum
Researcher at University of St Andrews
Publications - 56
Citations - 1253
Chang-Min Keum is an academic researcher from University of St Andrews. The author has contributed to research in topics: Organic semiconductor & Pentacene. The author has an hindex of 15, co-authored 56 publications receiving 917 citations. Previous affiliations of Chang-Min Keum include Kent State University & Dresden University of Technology.
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Surface modification of a ferroelectric polymer insulator for low-voltage readable nonvolatile memory in an organic field-effect transistor
TL;DR: In this article, the sequential surface modification of a ferroelectric polymer insulator plays an essential role in both the enhancement of the carrier mobility and the shift in the turn-on voltage (Von) in an organic Ferroelectric field effect transistor (FeFET) for nonvolatile memory.
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Solution-processed low leakage organic field-effect transistors with self-pattern registration based on patterned dielectric barrier
TL;DR: In this paper, a bottom-gate, top-contact geometry of a solution-processed organic field-effect transistor (OFET) was demonstrated using a patterned dielectric barrier (PDB).
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Reaching saturation in patterned source vertical organic field effect transistors
TL;DR: In this paper, the Patterned Source Vertical Organic Field Effect Transistor (PS-VOFET) architecture exhibits saturation with only 1% change in drain-source current over a 10'V change in the drain source voltage.
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Photostimulation for In Vitro Optogenetics with High-Power Blue Organic Light-Emitting Diodes.
Andrew Morton,Caroline Murawski,Yali Deng,Chang-Min Keum,Gareth B. Miles,Javier Tello,Malte C. Gather +6 more
TL;DR: The reported optimization and characterization of high‐power OLEDs are foundational for the development of miniaturized OLEDs with thin‐layer encapsulation on bioimplantable devices to allow single‐cell activation in vivo.
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Tuning charge carrier transport and optical birefringence in liquid-crystalline thin films: A new design space for organic light-emitting diodes.
Chang-Min Keum,Chang-Min Keum,Shiyi Liu,Akram Al-Shadeedi,Akram Al-Shadeedi,Vikash Kaphle,Michiel Callens,Lu Han,Kristiaan Neyts,Hongping Zhao,Malte C. Gather,Scott D. Bunge,Robert J. Twieg,Antal Jakli,Björn Lüssem +14 more
TL;DR: It is shown that a change in alignment of the liquid-crystalline semiconductor improves charge transport in single charge carriers profoundly and an in-depth understanding of single charge carrier transport in two-terminal devices is obtained.