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Proceedings Paper

Organic photovoltaic cells based on functionalized pentacenes
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Paper Abstract

We report a study on solar cells using pentacene derivatives with triisopropylsilylethynyl substitution at the 6,13-position and 1,3-dioxolane substitution to the terminal benzenoid rings of pentacene as the electron donor and C60 as the electron acceptor. A significant increase in the open circuit voltage (Voc) was obtained in all the pentacene-derivative based cells with the highest Voc as high as 0.90 V, compared to a 0.24 V value for pentacene. The variation in the Voc of the cells is in qualitative agreement with the larger offset between ionization potential of the electron donor and the electron affinity of C60. The power conversion efficiency (η) at 100 mW/cm2 of EtTP-5/C60 cells reached 0.74%, which is comparable to that of a pentacene/C60 cell (0.82%).

Paper Details

Date Published: 1 October 2008
PDF: 6 pages
Proc. SPIE 7052, Organic Photovoltaics IX, 70521J (1 October 2008); doi: 10.1117/12.813527
Show Author Affiliations
Paul A. Lane, Naval Research Lab. (United States)
Leonidas C. Palilis, Naval Research Lab. (United States)
Gary P. Kushto, Naval Research Lab. (United States)
Zakya H. Kafafi, Naval Research Lab. (United States)
Balaji Purushothaman, Univ. of Kentucky (United States)
John E. Anthony, Univ. of Kentucky (United States)


Published in SPIE Proceedings Vol. 7052:
Organic Photovoltaics IX
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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