Stability of Bulk Heterojunction Organic Solar Cells with Different Blend Ratios of P3HT:PCBM
- 25 April 2012
- journal article
- Published by The Korean Institute of Electrical and Electronic Material Engineers in Transactions on Electrical and Electronic Materials
- Vol. 13 (2), 98-101
- https://doi.org/10.4313/teem.2012.13.2.98
Abstract
I studied the stability of organic photovoltaic cells in terms of P3HT:PCBM-71 blend ratio as a function of storage time.I obtained the best cell performance by optimizing the blend ratio of electron donor and electron acceptor within theactive layer. In this study, I found that the more the P3HT:PCBM ratio increases within the active layer, the more thecell efficiency decreases as the storage time increases. As a result, the best optimized blend ratio was the 1:0.6 ratioof P3HT:PCBM-71, and cell efficiency of the device with the 1:0.6 blend ratio was 4.49%. The device with the best cellefficiency showed good stabilityKeywords
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