Enhancement of organic thin-film solar cells by incorporating hybrid Au nanospheres and Au nanorods on a metallic grating surface. (2nd July 2020)

• Record Type: Journal Article
• Authors: Phetsang, S.; Anuthum, S.; Mungkornasawakul, P.; Lertvachirapaiboon, C.; Ishikawa, R.; Shinbo, K.; Kato, K.; Ounnunkad, K.; Baba, A.
• Is Part Of: Molecular crystals and liquid crystals. Volume 705(2020)
• Page Start: 41
• Page End: 47
• Publication Date: 2020-07-02
• Subjects: gold nanoparticles -- gold nanorods -- grating surface plasmon resonance -- localized surface plasmon resonance -- plasmonic solar cells; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2020.1741822
• Languages: English
• ISSNs: 1542-1406

Abstract

Abstract: In 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.