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Transparent, near-infrared organic photovoltaic solar cells for window and energy-scavenging applications
- Source :
- Applied Physics Letters. 98:113305
- Publication Year :
- 2011
- Publisher :
- AIP Publishing, 2011.
-
Abstract
- We fabricate near-infrared absorbing organic photovoltaics that are highly transparent to visible light. By optimizing near-infrared optical-interference, we demonstrate power efficiencies of 1.3±0.1% with simultaneous average visible transmission of >65%. Subsequent incorporation of near-infrared distributed-Bragg-reflector mirrors leads to an increase in the efficiency to 1.7±0.1%, approaching the 2.4±0.2% efficiency of the opaque cell, while maintaining high visible-transparency of >55%. Finally, we demonstrate that a series-integrated array of these transparent cells is capable of powering electronic devices under near-ambient lighting. This architecture suggests strategies for high-efficiency power-generating windows and highlights an application uniquely benefiting from excitonic electronics.
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 98
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........e6d2900ac081941dbaa0e80fb96e669e