https://scholars.lib.ntu.edu.tw/handle/123456789/331976
標題: | Enhanced optical absorption of organic materials via surface plasmon resonance in gold nanoparticles | 作者: | Sue, C.-W. Hsieh, H.-T. GUO-DUNG JOHN SU |
關鍵字: | Mie theory; Organic photovoltaic cell; Particle plasmon; Spectrum response; Surface plasmon | 公開日期: | 2007 | 卷: | 6656 | 來源出版物: | Proceedings of SPIE - The International Society for Optical Engineering | 摘要: | In this paper, we described an engineered enhancement of optical absorption in an organic photovoltaic cell via the excitation of surface plasmon resonance (SPR) in spherical Au nanoparticles deposited on a photovoltaic device. We deposited 5-nm diameter gold nanoparticles on ITO (indium tin oxide) glass substrates and then coated poly (styrenesulfonate) / poly (2,3-dihydro-thieno-1, 4-dioxin) (PEDOT) which can reduce the work function of metal atoms and poly (2-methoxy-5-(2-ethylhexyloxy)-1, 4-phenylenevinylene} (MEHPPV) with Fullerene(C60) mixtures that work as p-type and n-type organic semiconductors, respectively. By using Mie theory simulation, we could predict SPR resonance peak of gold nanoparticles and we assumed the enhancement in electromagnetic field absorption within a device results in increased photocurrent response in organic p-n junction diodes with gold nanoparticles. Compared with the same organic photovoltaic structures without gold nanoparticles, the proposed device shows about 40 % power efficiency improvement under halogen illumination. Experimental results agree well with simulation prediction, which showed SPR can be applied to enhance optical absorption of organic materials. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-42249094184&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/331976 |
DOI: | 10.1117/12.740676 | SDG/關鍵字: | Computer simulation; Diodes; Electromagnetic field effects; Glass; Gold; Light absorption; Surface plasmon resonance; Mie theory; Organic photovoltaic cells; Particle plasmon; Spectrum response; Nanoparticles |
顯示於: | 電機工程學系 |
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