Special Section on Organic Photovoltaics

Low-bandgap small molecules for near-infrared photovoltaic applications

[+] Author Affiliations
M. Ballarotto, D. B. Romero

University of Maryland, Laboratory for Physical Sciences, College Park, Maryland 20740

University of Maryland, Department of Electrical and Computer Engineering, College Park, Maryland 20742

W. N. Herman

University of Maryland, Laboratory for Physical Sciences, College Park, Maryland 20740

J. Photon. Energy. 1(1), 011102 (January 04, 2011). doi:10.1117/1.3528044
History: Received August 15, 2010; Revised October 14, 2010; Accepted November 18, 2010; Published January 04, 2011; Online January 04, 2011
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We investigate the effects of interfacial layers on the photovoltaic properties of bilayer organic heterojunction photovoltaic devices. The devices were fabricated using aluminum phthalocyanine chloride (AlPcCl) as electron donor and fullerene (C60) as electron acceptor. Two types of interfacial layers inserted between the transparent indium-tin-oxide anode and the AlPcCl layer were investigated: PEDOT:PSS and MoO3. We find that these interfacial layers have a strong influence on the device open-circuit voltage (VOC). The effects of temperature and illumination intensity on VOC were explored.

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© 2011 Society of Photo-Optical Instrumentation Engineers

Citation

M. Ballarotto ; W. N. Herman and D. B. Romero
"Low-bandgap small molecules for near-infrared photovoltaic applications", J. Photon. Energy. 1(1), 011102 (January 04, 2011). ; http://dx.doi.org/10.1117/1.3528044


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