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Journal Article
Perovskite photonic sources
2016
Overview
The prospects for light-emitting diodes and lasers based on perovskite materials are reviewed.
The field of solution-processed semiconductors has made great strides; however, it has yet to enable electrically driven lasers. To achieve this goal, improved materials are required that combine efficient (>50% quantum yield) radiative recombination under high injection, large and balanced charge-carrier mobilities in excess of 10 cm
2
V
−1
s
−1
, free-carrier densities greater than 10
17
cm
−3
and gain coefficients exceeding 10
4
cm
−1
. Solid-state perovskites are — in addition to galvanizing the field of solar electricity — showing great promise in photonic sources, and may be the answer to realizing solution-cast laser diodes. Here, we discuss the properties of perovskites that benefit light emission, review recent progress in perovskite electroluminescent diodes and optically pumped lasers, and examine the remaining challenges in achieving continuous-wave and electrically driven lasing.
Publisher
Nature Publishing Group UK,Nature Publishing Group
