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나노의학 연구단
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Precise Control of Quantum Confinement in Cesium Lead Halide Perovskite Quantum Dots via Thermodynamic Equilibrium

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Title
Precise Control of Quantum Confinement in Cesium Lead Halide Perovskite Quantum Dots via Thermodynamic Equilibrium
Author(s)
Yitong Dong; Tian Qiao; Doyun Kim; David Parobek; Daniel Rossi; Dong Hee Son
Publication Date
2018-06
Journal
NANO LETTERS, v.18, no.6, pp.3716 - 3222
Publisher
AMER CHEMICAL SOC
Abstract
Cesium lead halide (CsPbX3) nanocrystals have emerged as a new family of materials that can outperform the existing semiconductor nanocrystals due to their superb optical and charge-transport properties. However, the lack of a robust method for producing quantum dots with controlled size and high ensemble uniformity has been one of the major obstacles in exploring the useful properties of excitons in zero-dimensional nanostructures of CsPbX3. Here, we report a new synthesis approach that enables the precise control of the size based on the equilibrium rather than kinetics, producing CsPbX3 quantum dots nearly free of heterogeneous broadening in their exciton luminescence. The high level of size control and ensemble uniformity achieved here will open the door to harnessing the benefits of excitons in CsPbX3 quantum dots for photonic and energy-harvesting applications. © 2018 American Chemical Society.
URI
https://pr.ibs.re.kr/handle/8788114/5450
ISSN
1530-6984
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > Journal Papers
Files in This Item:
201806_손_Nano Lett._Precise Control of Quantum Confinement in Cesium Lead Halide.pdfDownload

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