Bo Ram Lee
한양대학교 공과대학 · 공학
Bo Ram Lee 교수의 연구실은 유기광전소자 및 유기발광소자 분야에서 핵심적인 연구를 수행하고 있습니다. 특히, 고효율 페로브스카이트 발광다이오드(PeLED), 폴리머 발광다이오드(PLED), 그리고 유기태양전지의 성능 향상을 위한 나노구조 재료와 인터페이스 엔지니어링에 중점을 두고 있습니다. 다양한 전자재료인 그래핀 옥사이드, 코어액시드 코팅, 고분자 전도체 등을 활용해 전하 수송, 에너지 전달(FRET), 결함 보정을 통한 효율성 향상을 연구하고 있습니다. 특히 적색 및 청색 PeLED의 안정성과 효율성 향상에 대한 도전적인 문제를 해결하기 위한 첨가제 설계와 이론적 분석도 함께 진행하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
We present an investigation of polymer light-emitting diodes (PLEDs) with a solution-processable graphene oxide (GO) interlayer. The GO layer with a wide band gap blocks electron transport from an emissive polymer to an ITO anode while reducing the exciton quenching between the GO and the active layer in place of poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (PEDOT:PSS). This GO interlayer maximizes hole-electron recombinations within the emissive layer, finally enhancing device
The successful encapsulation of human hepatocellular carcinoma (HepG2) cells would greatly assist a broad range of applications in tissue engineering. Due to the harsh conditions during standard chitosan fiber fabrication processes, encapsulation of HepG2 cells in chitosan fibers has been challenging. Here, we describe the successful wet-spinning of chitosan-alginate fibers using a coaxial flow microfluidic chip. We determined the optimal mixing conditions for generating chitosan-alginate fibers
Metal halide perovskites are promising candidates for use in light emitting diodes (LEDs), due to their potential for color tunable and high luminescence efficiency. While recent advances in perovskite-based light emitting diodes have resulted in external quantum efficiencies exceeding 12.4% for the green emitters, and infrared emitters based on 3 D/2D mixed dimensional perovskites have exceeded 20%, the external quantum efficiencies of the red and blue emitters still lag behind. A critical issu
Although significant progress has been made in the development of green, red, and near-infrared perovskite light-emitting diodes (PeLEDs), blue PeLEDs exhibit inferior performance, owing to various defects and poor carrier injection in solution-processed perovskite films. Thus, this study incorporates dual-passivation additive diphenylphosphinamide (DPPA) into perovskite films, and through density functional theory calculations and experimental characterizations, DPPA has been proven to be an ef
This review provides a comprehensive understanding of the chemical structure and overall development trend for solution-processable NIR-absorbing ultra-narrow-bandgap (UNBG; below 1.5 eV) polymer donors used in organic solar cells.
Highly efficient inverted-type red-emitting hybrid polymeric light-emitting diodes (HyPLEDs) were successfully demonstrated via Förster resonance energy transfer (FRET) and interfacial engineering of metal oxide with a cationic conjugated polyelectrolyte (CPE). Similarly structured green- and red-emissive polyfluorene copolymers, F8BT and F8TBT, were homogeneously blended as a FRET donor (host) and acceptor (dopant). A cationic polyfluorene-based CPE was also used as an interfacial layer for opt
