BROWSE
Detail
Journal Article
Analysis of the Current-Voltage Curves of a Cu(In,Ga)Se2 Thin-Film Solar Cell Measured at Different Irradiation Conditions
Cited 8 time in 
Share 
Share
- Authors
- Kyu-Seok Lee, Yong Duck Chung, Nae Man Park, Dae Hyung Cho, Kyung Hyun Kim, Jeha Kim, Seong Jun Kim, Yeongho Kim, Sam Kyu Noh
- Issue Date
- 2010-12
- Citation
- Journal of the Optical Society of Korea, v.14, no.4, pp.321-325
- ISSN
- 1226-4776
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- 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.
- KSP Keywords
- Characteristic parameters, Conversion efficiency(C.E.), Current-voltage curves, Diode current, Electron-hole recombination, Experimental Data, Irradiation power, Petri net(PN), Photocurrent density, Power Density, Saturation current density