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|Title:||Enhanced photocurrent and stability of organic solar cells using solution-based NiO interfacial layer|
|Keywords:||Intensity modulated photocurrent spectroscopy (IMPS)|
|Citation:||Wong, K.H., Ananthanarayanan, K., Heinemann, M.D., Luther, J., Balaya, P. (2012-11). Enhanced photocurrent and stability of organic solar cells using solution-based NiO interfacial layer. Solar Energy 86 (11) : 3190-3195. ScholarBank@NUS Repository. https://doi.org/10.1016/j.solener.2012.08.004|
|Abstract:||Metal oxide semiconductors are promising interfacial materials for organic photovoltaics (OPVs) because of their electrical properties and solution processability. In this article, we report the fabrication of poly(3-hexylthiophene):[6,6]-phenyl-C 61 butyric acid methyl ester (P3HT:PCBM) OPV devices incorporating solution-based NiO interfacial layers that show promising enhancements of the device photocurrent and stability. We discuss the impact of parasitic shunt and series resistances on device performance as well as the ambient degradation of these devices, studied with intensity modulated photocurrent spectroscopy (IMPS). The results showed that charge extraction was predominantly affected by degradation via decrease in carrier mobility and increased trapping/recombination, revealing the physical mechanism behind the degradation observed. © 2012 Elsevier Ltd.|
|Source Title:||Solar Energy|
|Appears in Collections:||Staff Publications|
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