Charge separation and transport properties of photovoltaic devices based on MEHPPV/TiO2 nanorods hybrid materials

Tsung-Wei Zeng; Yu-Ting Lin; Chun-Wei Chen; Wei-Fang Su

doi:10.1117/12.678783

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3 November 2006 Charge separation and transport properties of photovoltaic devices based on MEHPPV/TiO₂ nanorods hybrid materials

Tsung-Wei Zeng, Yu-Ting Lin, Chun-Wei Chen, Wei-Fang Su

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Proceedings Volume 6334, Organic Photovoltaics VII; 63340R (2006) https://doi.org/10.1117/12.678783
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Photovoltaic devices based on the conjugated polymer (poly(2-methoxy-5-(2'-ethyl)(hexyloxy)1,4-phenylenevinylene) (MEH-PPV) / TiO₂ nanorods hybrid materials are investigated. It is found that efficient charge separation occurs at the interfaces of MEH-PPV/ TiO₂ nanorods, accompanying with a significant quench in the photoluminescence (PL) intensity and a decrease of PL lifetime with increasing TiO₂ nanorod concentrations. The device based on the MEHPPV/ TiO₂ nanorod hybrid material shows power efficiency about 2.2% at the incident light with a wavelength of 565 nm. The transport properties of the solar cells are further investigated and discussed.

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Tsung-Wei Zeng, Yu-Ting Lin, Chun-Wei Chen, and Wei-Fang Su "Charge separation and transport properties of photovoltaic devices based on MEHPPV/TiO₂ nanorods hybrid materials", Proc. SPIE 6334, Organic Photovoltaics VII, 63340R (3 November 2006); https://doi.org/10.1117/12.678783

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