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Proceedings Paper

Efficiency enhancement in small molecular organic photovoltaic devices employing dual anode interfacial layers
Author(s): Tyler Fleetham; Barry O'Brien; John P. Mudrick; Jiangeng Xue; Jian Li
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Paper Abstract

We demonstrated enhanced efficiency in small molecule organic photovoltaic devices using dual organic interfacial layers of PEDOT:PSS followed by tetracene between the ITO anode and the organic donor material. The use of a small molecular templating layer, such as tetracene, proved to increase the molecular stacking of the subsequent phthalocyanine (Pc) based donor materials. Upon application in planar heterojunction devices of ZnPc and C60, an enhancement of over 80 percent in the donor contribution to the external quantum efficiency was observed attributed to the combination of exciton blocking by the higher band gap tetracene layer and enhanced exciton diffusion and charge transport resulting from the increased crystallinity.

Paper Details

Date Published: 17 October 2013
PDF: 6 pages
Proc. SPIE 8830, Organic Photovoltaics XIV, 883009 (17 October 2013); doi: 10.1117/12.2023679
Show Author Affiliations
Tyler Fleetham, Arizona State Univ. (United States)
Barry O'Brien, Arizona State Univ. (United States)
John P. Mudrick, Univ. of Florida (United States)
Jiangeng Xue, Univ. of Florida (United States)
Jian Li, Arizona State Univ. (United States)

Published in SPIE Proceedings Vol. 8830:
Organic Photovoltaics XIV
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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