1. Degradation of Polymer Solar Cells Based on P3HT:PCBM System
- Author
-
Huang Zhong Yu
- Subjects
Photoluminescence ,Materials science ,Waste management ,Absorption spectroscopy ,Photovoltaic system ,General Engineering ,Charge-transfer complex ,Polymer solar cell ,law.invention ,Chemical engineering ,law ,Solar cell ,Degradation (geology) ,Current density - Abstract
The degradation of the performance of the polymer solar cell based on the blend structures system of poly (3-hexylthiophene) (P3HT) and [6,-phenyl C61-butyric acid methyl ester (PCBM) is investigated. This study uses UV-vis absorption spectra, photoluminescence (PL) spectra, charge-transport dark J-V curve chart to explicate the reason for the degradation of the performance of P3HT:PCBM photovoltaic cells. Solar cell performance is degraded primarily through loss in short-circuit current density (Jsc) and fill factor (FF), the reduction in the Jsc and FF of the device is most likely to be due to the formation of the charge transfer complex, deep traps and destruction of the-conjugated system in the degraded P3HT:PCBM device. The exposure to oxygen and photo-oxidation lead to the emergence of these factors of the device performance degradation. Keywords: Degradation; Performance; Solar cells; P3HT: PCBM
- Published
- 2014