M
Mi Ri Choi
Researcher at Pohang University of Science and Technology
Publications - 4
Citations - 1363
Mi Ri Choi is an academic researcher from Pohang University of Science and Technology. The author has contributed to research in topics: OLED & Serotype. The author has an hindex of 3, co-authored 3 publications receiving 1259 citations.
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Journal ArticleDOI
Extremely efficient flexible organic light-emitting diodes with modified graphene anode
Tae Hee Han,Youngbin Lee,Mi Ri Choi,Seonghoon Woo,Sang-Hoon Bae,Byung Hee Hong,Jong Hyun Ahn,Tae-Woo Lee +7 more
TL;DR: In this paper, a high-work-function, low-sheet-resistance graphene anode was used to improve the luminous efficiency of organic light-emitting diodes (OLEDs).
Journal ArticleDOI
Polyaniline-based conducting polymer compositions with a high work function for hole-injection layers in organic light-emitting diodes: formation of ohmic contacts.
Mi Ri Choi,Seonghoon Woo,Tae Hee Han,Kyung-Geun Lim,Sung-Yong Min,Won Min Yun,Oh Kwan Kwon,Chan Eon Park,Kwan Do Kim,Hoon Kyu Shin,Myeong Suk Kim,Tae-Yong Noh,Jong Hyeok Park,Kyoung Hwan Shin,Jyongsik Jang,Tae-Woo Lee +15 more
TL;DR: This work greatly improved the injection efficiency and the current efficiency of SM-OLEDs by introducing conducting polymer compositions composed of polyaniline doped with polystyrene sulfonate and perfluorinated ionomer as the HIL.
Journal ArticleDOI
High-efficiency polymer photovoltaic cells using a solution-processable insulating interfacial nanolayer: the role of the insulating nanolayer
TL;DR: In this paper, a low-cost solution-processed ultrathin insulating polymeric layer of poly(4-hydroxystyrene) (PHS), with a high glass transition temperature (Tg ∼ 185 °C), was employed as an interfacial layer between the polymer:fullerene photoactive layer and the Al negative electrode for enhancing device power conversion efficiency (PCE) of polymer bulk-heterojunction photovoltaic cells and investigated the roles of the interfacial nanolayer by ultraviolet photoemission spectroscopy and capacitance-volt