Device engineering for highly efficient top-illuminated organic solar cells with microcavity structures.

Hao-Wu Lin, Si-Wen Chiu, Li-Yen Lin, Zheng-Yu Hung, Yi-Hong Chen, Francis Lin, Ken-Tsung Wong

Index: Adv. Mater. 24(17) , 2269-72, (2012)

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Abstract

Small-molecule organic solar cells with microcavity structures utilizing very thin solar-absorbing active layers are simulated and fabricated. By carefully fine-tuning the in-cell spacer layer and out-of-cell capping layer, highly efficient top-illuminated indium tin oxide-free solar cells are created on glass and flexible polyethylene terephthalate substrates with efficiencies of up to 5.5% and 5%, respectively.Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.