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Synthesis and Photovoltaic Properties of Poly(p-phenylenevinylene) Derivatives Modified by Thiophene Derivatives

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Abstract:

Two novel conjugated polymers (P1 and P2), consisting of 2,5-dioctyloxy-1,4- phenylenevinylene and terthiophene derivative based on 3,4-ethylenedioxythiophene, named TTh-Oxa, with oxadiazole side chains, have been synthesized via the Witting–Horner reaction. Another poly(p-phenylene vinylene) (PPV) derivative P3 was also prepared for comparison. The introduction of TTh-Oxa unit in polymer benefits to widening and red shifting the absorption spectra of PPV derivatives. Photovoltaic cells were fabricated with the as-synthesized polymers as the donors and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the acceptor in a 1:4 weight ratio. The device based on P1 showed a maximum power conversion efficiency of 0.64 % under simulated AM 1.5 G solar irradiation (100 mW/cm2).

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Periodical:

Advanced Materials Research (Volume 643)

Pages:

13-16

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.643.13

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Online since:

January 2013

Authors:

Mei Hua Huang, Zong Fang Tian, Hui Huang

Keywords:

1,3,4-Oxadiazole, 3,4-Ethylenedioxythiophene, Poly(p-phenylenevinylene) Derivatives, Polymer Solar Cells, Thiophene Derivatives

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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