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Journal of Photonics for Energy • Open Access

Polymers for organic photovoltaics based on 1,5-bis(2-hexyldecyloxy)-naphthalene, thiophene, and benzothiadiazole
Author(s): Jon E. Carlé; Mikkel Jørgensen; Frederik C. Krebs

Paper Abstract

Two new conjugated polymers consisting of the donors 1,5-bis(2-hexyldecyloxy)naphthalene, thiophene, or bithiophene and the acceptor benzothiadiazole has been synthesized and their optical and photovoltaic properties have been characterized. The two polymers were compared with earlier synthesized and characterized polymers containing benzene instead of naphthalene. The two polymers absorb light in the visible spectrum (400 to 700 nm). The naphthalene containing polymers had blueshifted absorption spectra compared to the benzene containing polymers and also higher band gaps. In photovoltaic devices the bithiophene containing polymer gave the best efficiency of 0.6%, whereas the single thiophene only showed efficiency of 0.005%. This is lower than the best benzene incorporated polymer that showed efficiency up to 2.2%.

Paper Details

Date Published: 1 January 2011
PDF: 11 pages
J. Photon. Energy 1(1) 011111 doi: 10.1117/1.3556724
Published in: Journal of Photonics for Energy Volume 1, Issue 1
Show Author Affiliations
Jon E. Carlé, Risø National Lab. (Denmark)
Mikkel Jørgensen, Risø National Lab. (Denmark)
Frederik C. Krebs, Risø National Lab. (Denmark)

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