Journal
NANO LETTERS
Volume 18, Issue 5, Pages 3221-3228Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.8b00990
Keywords
2D RPP single crystals; solution growth; photoluminescence; lasing
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Funding
- Ministry of Science and Technology (MOST), Taiwan [105-2112-M-038-001-MY3, 106-2119-M-002-042-FS]
- Ministry of Education (MOE), Taiwan [NTU-107L9008]
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Organic-inorganic hybrid two-dimensional (2D) perovskites have recently attracted great attention in optical and optoelectronic applications due to their inherent natural quantum-well structure. We report the growth of high-quality millimeter-sized single crystals belonging to homologous two-dimensional (2D) hybrid organic-inorganic Ruddelsden-Popper perovskites (RPPs) of (BA)(2)(MA)(n-1)PbnI3n+1 (n = 1, 2, and 3) by a slow evaporation at a constant-temperature (SECT) solution-growth strategy. The as-grown 2D hybrid perovskite single crystals exhibit excellent crystallinity, phase purity, and spectral uniformity. Low-threshold lasing behaviors with different emission wavelengths at room temperature have been observed from the homologous 2D hybrid RPP single crystals. Our result demonstrates that solution- growth homologous organic-inorganic hybrid 2D perovskite single crystals open up a new window as a promising candidate for optical gain media.
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