期刊
ACS PHOTONICS
卷 6, 期 2, 页码 460-466出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.8b01413
关键词
quasi-2D; Ruddlesden-Popper; roll-off; Auger recombination
类别
资金
- Japan Science and Technology Agency (JST), ERATO, Adachi Molecular Exciton Engineering Project under JST ERATO, Japan [JPMJER1305]
- JSPS KAKENHI [JP1SK14149, JP16H04192]
- Canon Foundation
This work investigates the feasibility of using low-dimensional perovskites for electrically driven lasers given the current status of perovskite light-emitting diodes and optically pumped lasers. In our progress toward electrically driven lasers, we performed a variety of measurements on bulk and low-dimensional perovskite films to give a baseline for expectations. This included the measurement of amplified spontaneous emission, lasing, and near-infrared light-emitting diodes operated at low and high current density. We considered power density thresholds needed for amplified spontaneous emission and lasing and compared this to light-emitting diodes operated at high current density to speculate on the future of electrically driven perovskite lasers. We concluded that our current perovskite devices will need current densities of similar to 4 to 10 kA/cm(2) to achieve lasing. Future devices will most significantly benefit from architectures that accommodate higher current, but meaningful reductions in threshold may also come from improved film quality and confinement.
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