Journal
APPLIED PHYSICS LETTERS
Volume 114, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5090569
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Funding
- National 973 program [2013CB632105]
- National Natural Science Foundation of China [11174018]
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Quasi-2D Ruddlesden-Popper perovskites possess a tailorable quantum well structure and outstanding optical properties. Herein, we study their diverse phase-separation phenomena and the resulting microcrystals (similar to 1 mu m), which have evidently enhanced photoluminescence. Lasing based on these microcrystals in a vertical single-mode optical microcavity has also been achieved, featuring a low threshold of similar to 500.0 mu J/cm(2) pumped by a nanosecond pulsed laser (355 nm, pulse width 8 ns, 1 kHz). This work makes the quasi-2D perovskite microcrystals potential candidates to be gain materials for continuous wave lasing.
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