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학술지 Analysis of the Current-Voltage Curves of a Cu(In,Ga)Se2 Thin-Film Solar Cell Measured at Different Irradiation Conditions
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저자
이규석, 정용덕, 박래만, 조대형, 김경현, 김제하, 김성준, 김영호, 노삼규
발행일
201012
출처
Journal of the Optical Society of Korea, v.14 no.4, pp.321-325
ISSN
1226-4776
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.3807/JOSK.2010.14.4.321
협약과제
10MB4200, 반응성 스퍼터링을 이용한 CIGS 초박막 고효율 태양전지 기술 개발, 김제하
초록
We analyze the current density - voltage (J - V) curve of a Cu(In,Ga)Se2 (CIGS) thin-film solar cell measured at different irradiation power densities. For the solar-cell sample investigated in this study, the fill factor and power conversion efficiency decreased as the irradiation power density (IPD) increased in the range of 2 to 5 sun. Characteristic parameters of solar cell including the series resistance (rs), the shunt resistance (rsh), the photocurrent density (JL), the saturation current density (Js) of an ideal diode, and the coefficient (Cs) of the diode current due to electron-hole recombination via ionized traps at the p-n interface are determined from a theoretical fit to the experimental data of the J - V curve using a two-diode model. As IPD increased, both rs and rsh decreased, but Cs increased.
키워드
Cu(In,Ga)Se 2, J-V curve, Solar cell, Thin film
KSP 제안 키워드
Characteristic parameters, Conversion efficiency(C.E.), Current-voltage curves, Diode current, Electron-hole recombination, Experimental Data, Irradiation power, J-V, Petri net(PN), Photocurrent density, Power Density