Synthesis and Characterization of Phenanthrene-substituted Fullerene Derivatives as Electron Acceptors for P3HT-based Polymer Solar Cells 


Vol. 35,  No. 6, pp. 1647-1653, Jun.  2014
10.5012/bkcs.2014.35.6.1647


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  Abstract

9,10-Bis(bromomethyl)phenanthrene reacted with fullerenes via a Diels-Alder reaction to give phenanthrenesubstituted fullerene mono-adducts (PCMA) and bis-adducts (PCBA) as electron acceptors for organic photovoltaic cells (OPVs). The syntheses of the fullerene derivatives were confirmed by 1H 13C NMR spectroscopy and MALDI-TOF mass spectrometry. PCMA and PCBA showed better light absorption in the UV-visible region than PC61BM. Their electrochemical properties were measured using cyclic voltammetry. Accordingly, the lowest unoccupied molecular orbital (LUMO) energy levels of PCMA and PCBA were −3.66 and −3.57 eV, respectively. Photovoltaic cells were fabricated with a ITO/PEDOT:PSS/poly(3-hexylthiophene)( P3HT):acceptor/LiF/Al configuration, where P3HT and PCBA are the electron donors and acceptors, respectively. The polymer solar cell fabricated using the P3HT:PCBA active layer showed a maximum power conversion efficiency of 0.71%.

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  Cite this article

[IEEE Style]

D. Mi, J. B. Park, F. Xu, H. U. Kim, J. Kim, D. Hwang, "Synthesis and Characterization of Phenanthrene-substituted Fullerene Derivatives as Electron Acceptors for P3HT-based Polymer Solar Cells," Bulletin of the Korean Chemical Society, vol. 35, no. 6, pp. 1647-1653, 2014. DOI: 10.5012/bkcs.2014.35.6.1647.

[ACM Style]

Dongbo Mi, Jong Baek Park, Fei Xu, Hee Un Kim, Ji-Hoon Kim, and Do-Hoon Hwang. 2014. Synthesis and Characterization of Phenanthrene-substituted Fullerene Derivatives as Electron Acceptors for P3HT-based Polymer Solar Cells. Bulletin of the Korean Chemical Society, 35, 6, (2014), 1647-1653. DOI: 10.5012/bkcs.2014.35.6.1647.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949