Special Section on Organic Photovoltaics

Polymers for organic photovoltaics based on 1,5-bis(2-hexyldecyloxy)-naphthalene, thiophene, and benzothiadiazole

[+] Author Affiliations
Jon E. Carlé, Mikkel Jørgensen, Frederik C. Krebs

Technical University of Denmark, Risø National Laboratory for Sustainable Energy, Frederiksborgvej 399, DK-4000 Roskilde, Denmark

J. Photon. Energy. 1(1), 011111 (March 16, 2011). doi:10.1117/1.3556724
History: Received July 29, 2010; Revised January 27, 2010; Accepted January 31, 2011; Published March 16, 2011; Online March 16, 2011
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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%.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Topics

Polymers

Citation

Jon E. Carlé ; Mikkel Jørgensen and Frederik C. Krebs
"Polymers for organic photovoltaics based on 1,5-bis(2-hexyldecyloxy)-naphthalene, thiophene, and benzothiadiazole", J. Photon. Energy. 1(1), 011111 (March 16, 2011). ; http://dx.doi.org/10.1117/1.3556724


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