Enhancement of organic thin-film solar cells by incorporating hybrid Au nanospheres and Au nanorods on a metallic grating surface |
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| Authors: | S Phetsang S Anuthum P Mungkornasawakul C Lertvachirapaiboon R Ishikawa K Shinbo |
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| Institution: | 1. Graduate School of Science and Technology, Niigata University, Niigata, Japan;2. Department of Chemistry, Chiang Mai University, Chiang Mai, Thailand;3. Department of Chemistry, Chiang Mai University, Chiang Mai, Thailand;4. Center of Excellence for Innovation in Chemistry (PERCH-CIC), Chiang Mai University, Chiang Mai, Thailand;5. Faculty of Science, Environmental Science Research Center (ESRC), Chiang Mai University, Chiang Mai, Thailand |
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| Abstract: | AbstractIn this study, we demonstrate the fabrication of hybrid plasmonic solar cells using gold nanoparticles (AuNPs). Two types of AuNPs, gold nanospheres (AuNSs) and gold nanorods (AuNRs), were incorporated in a hole transport layer (HTL) (PEDOT:PSS) on a metallic grating electrode. The organic solar cells (OSCs) structure comprised an indium-tin-oxide (ITO)-coated glass substrate/PEDOT:PSS:AuNSs:AuNRs/P3HT:PCBM/Al grating electrode. Adding AuNPs induced localized surface plasmon resonance (LSPR), while grating structured Al at the interface with a photoactive layer excited the propagating surface plasmons. Compared with a flat reference device, the proposed OSCs exhibited improved photovoltaic properties by increasing both the short-circuit current density (JSC) and the power conversion efficiency (PCE) with large enhancements of 16.23% and 14.06%, respectively. The efficiency improvement was attributed to increased broadband absorption and improved electrical properties inside the thin-film devices. |
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| Keywords: | gold nanoparticles gold nanorods grating surface plasmon resonance localized surface plasmon resonance plasmonic solar cells |
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