Intensity modulated short circuit current spectroscopy for solar cells
| Autor: | Nese Kavasoglu, Sener Oktik, Ozcan Birgi, A. Sertap Kavasoglu |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Photocurrent
Theory of solar cells Renewable Energy Sustainability and the Environment business.industry Chemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Dielectric spectroscopy Light intensity Optics law Solar cell Optoelectronics business Spectroscopy Short circuit Electrical impedance |
| Zdroj: | Solar Energy Materials and Solar Cells. 95:727-730 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2010.10.012 |
| Popis: | Understanding charge separation and transport is momentously important for the rectification of solar cell performance. To probe photo-generated carrier dynamics, we implemented intensity modulated short circuit current spectroscopy (IMSCCS) on porous Si and Cu(Inx,Ga1−x)Se2 solar cells. In this experiment, the solar cells were lightened with sinusoidally modulated monochromatic light. The photocurrent response of the solar cell as a function of modulation frequency is measured as the optoelectronic transfer function of the system. The optoelectronic transfer function introduces the connection between the modulated light intensity and measured AC current of the solar cell. In this study, interaction of free carriers with the density of states of the porous Si and Cu(Inx, Ga1−x)Se2 solar cells was studied on the basis of charge transport time by IMSCCS data. |
| Databáze: | OpenAIRE |
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