Nanophotonic front electrodes for perovskite solar cells

Paetzold, Ulrich W.; Cheyns, David; Poortmans, Jef; Finger, Friedhelm; Qiu, Weiming

doi:10.1063/1.4918751

Journal Article

FZJ-2015-07462

Nanophotonic front electrodes for perovskite solar cells

Paetzold, U. W. (Corresponding author)FZJ* ; Qiu, W. ; Finger, F.FZJ* ; Poortmans, J. ; Cheyns, D.

2015
American Inst. of Physics Melville, NY

Applied physics letters 106(17), 173101 - (2015) [10.1063/1.4918751]

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Please use a persistent id in citations: http://hdl.handle.net/2128/17307 doi:10.1063/1.4918751

Abstract: In less than 3 years' time, a vast progress in power conversion efficiencies of organometal halide perovskite solar cells has been achieved by optimization of the device architecture, charge transport layers, and interfaces. A further increase in these efficiencies is expected from an improvement in the optical properties via anti-reflection coatings and nanophotonic light management concepts. In this contribution, we report on the development and implementation of a nanophotonic front electrode for perovskite solar cells. The nanostructures were replicated via the versatile and large-area compatible UV-nanoimprint lithography. The shallow design of the used transparent and conductive nanostructures enabled easy integration into our solution-based baseline process. Prototype methylammonium lead iodide perovskite solar cells show an improvement of 5% in short-circuit current density and an improvement from 9.6% to 9.9% in power conversion efficiency compared to the flat reference device.

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