Optically-Enhanced Polymer Bulk Heterojunction Solar Cells by Addition of Gold Nanostructures
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Published:2015-03
Issue:
Volume:1094
Page:214-217
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ISSN:1662-8985
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Container-title:Advanced Materials Research
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language:
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Short-container-title:AMR
Author:
Zhang Li Xin1, Zhang Pan Pan1, Ma Da1, Dang Yang1, Chen Xin1, Zhang Chun Xia1, Kang Bo Nan1
Abstract
We investigate the effects of Au nanoparticles (Au NPs) on poly [N-9′′-hepta-decanyl-2,14-carbazole-alt-5,5-(4′,14′-di-2-thienyl-2′,1,3′-benzothiadiazole)]:ph-enyl-C61-butyric acid methyl ester (PCDTBT:PCBM) based organic photovoltaic (OPV) devices by thermal evaporating Au NPs onto polytetrafluoroethylene (PTFE) layer which is based on indium-tin-oxide (ITO) glass substrate.Significant improvement in terms of short-circuit current density (Jsc) by 33.6%, fill factor (FF) by 0.9%, and thereby commensurate power conversion efficiency (PCE) by 40.7% were achieved compared to devices without Au NPs. The OPVs performance enhancement is attributed to the formation of Au NPs-induced surface plasmons that increases the rate of exciton generation, and the probability of exciton dissociation.
Publisher
Trans Tech Publications, Ltd.
Subject
General Engineering
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