Fully solution-processed semitransparent organic solar cells with a silver nanowire cathode and a conducting polymer anode.

Yim, Jong Hyuk; Joe, Sung-yoon; Pang, Christina; Lee, Kyung Moon; Jeong, Huiseong; Park, Ji-Yong; Ahn, Yeong Hwan; de Mello, John C et al. · ACS Nano · 2014

basic_science · Level V

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Abstract

We report the fabrication of efficient indium-tin-oxide-free organic solar cells based on poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM). All layers of the devices from the lowermost silver nanowire cathode to the uppermost conducting polymer anode are deposited from solution and processed at plastic-compatible temperatures<200 °C. Owing to the absence of an opaque metal electrode, the devices are semitransparent with potential applications in power-generating windows and tandem-cells. The measured power conversion efficiencies (PCEs) of 2.3 and 2.0% under cathode- and anode-side illumination, respectively, match previously reported PCE values for equivalent semitransparent organic solar cells using indium tin oxide.