https://scholars.lib.ntu.edu.tw/handle/123456789/385495
標題: | Plasmon-enhanced polymer photovoltaic device performance using different patterned Ag/PVP electrospun nanofibers | 作者: | Chen, J.-Y. Wu, H.-C. Chiu, Y.-C. Chen, W.-C. WEN-CHANG CHEN |
關鍵字: | electrospinning; in-situ Ag reduction; nanofibers; organic photovoltaic cells; surface plasmonic resonance | 公開日期: | 2014 | 卷: | 4 | 期: | 8 | 來源出版物: | Advanced Energy Materials | 摘要: | Significant enhancement of P3HT (poly(3-hexylthiophene)):PC61BM ([6,6]-phenyl C61-butyric acid methyl ester) photovoltaic devices using different patterns of electrospun Ag/PVP composite nanofibers, including nonwoven, aligned, and crossed patterns, is reported. The composite electrospun nanofibers are prepared using in situ reduction of silver (Ag) nanoparticles in Ag/poly(vinyl pyrrolidone) (PVP) via a two-fluid coaxial electrospinning technique. The composition, crystalline orientation, and particle size of Ag are manipulated by controlling the core/shell solution concentration. The smallest diameter of the composite nanofibers leads to the highest orientation of the Ag nanoparticles and results in the largest conductivity due to geometric confinement. Such composite nanofibers exhibit the surface plasmon resonance (SPR) effect, which provides near field enhancement of electromagnetic field around active layer. Additionally, composite nanofibers with the crossed or nonwoven patterns further enhance high carrier mobility, compared to that of the aligned pattern. It leads to the 18.7% enhancement of the power conversion efficiency of photovoltaic cell compared to the parent device. The results indicate that the high conductivity and SPR effect of the Ag/PVP electrospun nanofibers can significantly improve the photocurrent and PCE, leading to promising organic solar cell applications. Highly conducting silver (Ag)/poly(vinyl pyrrolidone) (PVP) electrospun nanofibers with different patterns (nonwoven, aligned, and crossed) are prepared using a coaxial electrospinning technique. When the crossed pattern nanofibers are used in P3HT (poly(3-hexylthiophene)):PC61BM ([6,6]-phenyl C61-butyric acid methyl ester) photovoltaics, the power conversion efficiency (PCE) is improved from 3.53 to 4.19% because of the enhanced carrier mobility and surface plasmon resonance effects. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84902072836&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/385495 |
DOI: | 10.1002/aenm.201301665 | SDG/關鍵字: | Butyric acid; Carrier mobility; Conversion efficiency; Electromagnetic fields; Electrospinning; Esterification; Esters; Nanofibers; Nanoparticles; Nonwoven fabrics; Photoelectrochemical cells; Photovoltaic cells; Photovoltaic effects; Plasmons; Surface plasmon resonance; Weaving; Crystalline orientations; Enhanced carrier mobility; Organic photovoltaic cells; Poly (3-hexylthiophene); Polymer photovoltaic device; Power conversion efficiencies; Surface plasmon resonance effects; Surface plasmonic resonances; Silver |
顯示於: | 化學工程學系 |
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