TITLE

Inverted small molecule organic photovoltaic cells on reflective substrates

AUTHOR(S)
Tong, Xiaoran; Bailey-Salzman, Rhonda F.; Wei, Guodan; Forrest, Stephen R.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p173304
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate top-illuminated, inverted, small molecule photovoltaic cells grown on reflective substrates employing copper phthalocyanine as the donor and 3,4,9,10-perylenetetracarboxylic bis-benzimidazole as the acceptor, with a sputter-deposited transparent indium tin oxide top cathode and a metal anode, thereby reversing the conventional charge extraction properties of these contacts. The best device achieved a peak power conversion efficiency of 0.74±0.03%, reasonably consistent with the optical simulations under 1 sun AM1.5G illumination giving 0.83±0.02%. This work suggests that inverted organic solar cells grown on reflective substrates have potential uses such as for power-generating coatings on opaque surfaces.
ACCESSION #
35279097

 

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