Trap-Free Hot Carrier Relaxation in Lead–Halide Perovskite Films

Bretschneider, Simon A.; Laquai, Frédéric; Bonn, Mischa

Trap-Free Hot Carrier Relaxation in Lead–Halide Perovskite Films

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Type

Article

Authors

Bretschneider, Simon A.
Laquai, Frédéric

Bonn, Mischa

KAUST Department

KAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division

Online Publication Date

2017-05-18

Print Publication Date

2017-06

Date

2017-05-18

Abstract

Photovoltaic devices that employ lead-halide perovskites as photoactive materials exhibit power conversion efficiencies of 22%. One of the potential routes to go beyond the current efficiencies is to extract charge carriers that carry excess energy, that is, nonrelaxed or

Citation

Bretschneider SA, Laquai F, Bonn M (2017) Trap-Free Hot Carrier Relaxation in Lead–Halide Perovskite Films. The Journal of Physical Chemistry C 121: 11201–11206. Available: http://dx.doi.org/10.1021/acs.jpcc.7b03992.

Acknowledgements

We thank Enrique Canovas, Felix Deschler, Mike Donovan, Dominik Gehrig, Ian Howard, Sapun Parekh, Hai Wang, and Stefan Weber for fruitful discussions and Jenée Cyran for a careful reading of the manuscript. S.A.B acknowledges support from the Max Planck Graduate Center and thanks Stefan Schumacher for the TOC image, Gunnar Glaser for providing wisdom, especially about scanning electron microscopy, and Ellen Backus for help with the simulations. F.L. thanks the Max-Planck-Society for previous funding of the Max Planck Research Group for Organic Optoelectronics.