2018
DOI: 10.1021/acsami.8b08474
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Wavelength-Tunable and Highly Stable Perovskite-Quantum-Dot-Doped Lasers with Liquid Crystal Lasing Cavities

Abstract: This study applies a low-cost solvothermal method to synthesize all-inorganic (lead-free cesium tin halide) perovskite quantum dots (AIPQDs) and to fabricate AIPQD-doped lasers with cholesteric liquid crystal (CLC) lasing cavities. The lasers present highly qualified lasing features of low threshold (150 nJ/pulse) and narrow line width (0.20 nm) that are attributed to the conjunction of the suppression of photoluminescence (PL) loss caused by the quantum confinement of AIPQDs and the amplification of PL caused… Show more

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Cited by 66 publications
(58 citation statements)
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“…The three‐dimensional (3D) HPs have ABX 3 (A: monovalent cations, B: divalent cations, X: halide anions) frameworks corresponding to corner‐sharing octahedral networks features compositional flexibility, and they can be properly optimized by constituent tuning of A, B, and X components for desired characteristics . Due to exotic properties such as large absorption coefficients, long diffusion lengths of minority carriers, large ionic conductivity, facile synthetic routes, and high structural and compositional flexibility, they have been applied to photovoltaics, light‐emitting diodes (LEDs), photodetectors, lasers, resistive switching memories, and artificial synapses …”
Section: Introductionmentioning
confidence: 99%
“…The three‐dimensional (3D) HPs have ABX 3 (A: monovalent cations, B: divalent cations, X: halide anions) frameworks corresponding to corner‐sharing octahedral networks features compositional flexibility, and they can be properly optimized by constituent tuning of A, B, and X components for desired characteristics . Due to exotic properties such as large absorption coefficients, long diffusion lengths of minority carriers, large ionic conductivity, facile synthetic routes, and high structural and compositional flexibility, they have been applied to photovoltaics, light‐emitting diodes (LEDs), photodetectors, lasers, resistive switching memories, and artificial synapses …”
Section: Introductionmentioning
confidence: 99%
“…The characteristics of ionic bonding and low crystal lattice energy make LHPs act as solute in nearly all polar solvents. The common method is to wrap a layer of nondestructive medium outside the perovskite nanocrystals …”
Section: Laser Stabilitymentioning
confidence: 99%
“…Besides, upon Mn doping, the PLQYs of CsPbCl 3 showed a decrease, with a maximum value of 54%. Chen L. J. et al ( 2018 ) reported on the Sn-substituted perovskite of CsSnI 3 PQDs via solvothermal synthesis. They chose SnI 2 instead of PbI 2 as the precursor to prepare AIP quantum dots which has a lower toxicity but good luminous performance.…”
Section: Synthesis and Modification Of Hoip And Aip Nanocrystalsmentioning
confidence: 99%
“…When CLCs present a planar arrangement structure, that is, the direction of the spiral axis of the crystals is perpendicular to the glass substrate, Bragg reflection will occur (Zola et al, 2019 ). Based on this optical property, some applications like liquid crystal display (Chen H. W. et al, 2018 ; Ko et al, 2018 ) and liquid crystal laser (Coles and Morris, 2010 ; Ortega et al, 2017 ; Chen L. J. et al, 2018 ) have been developed. As there is a growing number of researches on PQDs' display/lasering/lighting applications (Liang et al, 2019 ), here, we revisit the ongoing researches on PQD materials in terms of their chemistry in synthesis and applied physics in multiple emission applications in conjunction with LCs.…”
Section: Introductionmentioning
confidence: 99%