http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
CIGS 태양전지의 소수캐리어 확산 거리에 대한 새로운 측정 방안 연구
이돈환(Don Hwan Lee),김영수(Young Su Kim),모찬빈(Chan Bin Mo),남정규(Jung Gyu Nam),이동호(Dong Ho Lee),박성찬(Sung Chan Park),김병준(Byoung June Kim),김동섭(Dong Seop Kim) 한국태양광발전학회 2014 Current Photovoltaic Research Vol.2 No.2
Minority carrier diffusion length is one of the most important parameters of solar cells, especially for short circuit current density (Jsc). In this report, we proposed the calculating method of the minority carrier diffusion length (Ln) in CIGS solar cells through biased quantum efficiency (QE). To verify this method"s reliability, we chose two CIGS samples which have different grain size and calculated Ln for each sample. First of all, we calculated out that Ln was 56nm and 97nm for small and large grain sized-cell through this method, respectively. Second, we found out the large grain sized-cell has about 7 times lower defect density than the small grain sized-cell using drive level capacitance profiling (DLCP) method. Consequently, we confirmed that Ln was mainly affected by the micro-structure and defect density of CIGS layer, and could explain the cause of Jsc difference between two samples having same band gap.
SCAPS-1D 시뮬레이션을 이용한 n-i-p 구조 페로브스카이트 태양전지의 열적 열화 원인 분석
김성탁(Seongtak Kim),배수현(Soohyun Bae),정영훈(Younghun Jeong),한동운(Dong-Woon Han),김동환(Donghwan Kim),모찬빈(Chan Bin Mo) 한국태양광발전학회 2022 Current Photovoltaic Research Vol.10 No.1
The long-term stability of PSCs against visual and UV light, moisture, electrical bias and high temperature is an important issue for commercialization. In particular, since the operation temperature of solar cell can rise above 85°C, a study on thermal stability is required. In this study, the cause of thermal-induced degradation of PSCs was investigated using the SCAPS-1D simulation tool. First, PSCs of TiO₂/CH₃NH₃PbI₃/Spiro-OMeTAD/Au structure were exposed to a constant temperature of 85°C to observe changes in conversion efficiency and quantum efficiency. Because the EQE reduction above 500 nm was remarkable, we simulated PSCs performance as a function of lifetime, doping density of perovskite and spiro-OMeTAD. Consequently, the main cause of thermal-induced degradation is considered to be the change in the perovskite doping concentration and lifetime due to ion migration of perovskite.