Nano Archive

Photoinduced charge transfer and efficient solar energy conversion in a blend of a red polyfluorene copolymer with CdSe nanoparticles

Wang, Peng and Abrusci, Agnese and Wong, Henry M. P. and Svensson, Mattias and Andersson, Mats R. and Greenham, Neil C. (2006) Photoinduced charge transfer and efficient solar energy conversion in a blend of a red polyfluorene copolymer with CdSe nanoparticles. NANO LETTERS, 6 (8). pp. 1789-1793.

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Official URL: http://dx.doi.org/10.1021/nl061085q

Abstract

We present measurements of charge transfer and the photovoltaic effect in a blend of the alternating polyfluorene copolymer poly(2,7-(9,9-dioctyl-fluorene)-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-ben zothiadiazole)) with branched CdSe nanoparticles. Quasi-steady-state photoinduced absorption measurements identified a long-lived charged species that formed after photoexcitation at room temperature. Photovoltaic devices based on this blend system showed a spectral response extending to 650 nm and gave a solar power conversion efficiency of 2.4% under Air Mass 1.5 Global (AM1.5G) conditions.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Technology > Nanotechnology and energy applications
ID Code:3815
Deposited By:SPI
Deposited On:22 Jan 2009 10:17
Last Modified:22 Jan 2009 10:17

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