Widening of harvesting layer and area of P3HT/PCBM bulk-heterojunction photovoltaic cells |
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| Authors: | Hisashi KitamiTakaaki Sakai Takaaki HishinumaAtsushi Sanda Hiroyuki KusanoMasahiko Kitagawa |
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| Affiliation: | a Department of Information and Electronics, Tottori University Koyama, Tottori 680-8552, Japan
b Research Institute of Technology of Tottori Prefecture, Wakabadai, Tottori 689-1112, Japan |
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| Abstract: | We have fabricated P3HT/PCBM based bulk-heterojunction photovoltaic cells with P3HT layer as the hole transport layer and PCBM layer as the electron transport layer between electrode and blended P3HT/PCBM layer in order to widen the photon harvesting layer. Current density has increased by about 1 mA/cm2 by the insertion of P3HT layer and the resulting conversion efficiency has been improved by about 20%. We have also fabricated a centimeter-scale active area with an efficiency of ∼1%. |
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| Keywords: | Organic thin film photovoltaic cells Bulk-heterojunction P3HT/PCBM multi-layer structure |
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