TY  - JOUR
AU  - Paetzold, Ulrich W.
AU  - Qiu, Weiming
AU  - Finger, Friedhelm
AU  - Poortmans, Jef
AU  - Cheyns, David
TI  - Nanophotonic front electrodes for perovskite solar cells
JO  - Applied physics letters
VL  - 106
IS  - 17
SN  - 1077-3118
CY  - Melville, NY
PB  - American Inst. of Physics
M1  - FZJ-2015-07462
SP  - 173101 -
PY  - 2015
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000353839100044
DO  - DOI:10.1063/1.4918751
UR  - https://juser.fz-juelich.de/record/279578
ER  -