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나노의학 연구단
나노의학 연구단
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Two-Step Patterning of Scalable All-Inorganic Halide Perovskite Arrays

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Title
Two-Step Patterning of Scalable All-Inorganic Halide Perovskite Arrays
Author(s)
Chung-Kuan Lin; Qiuchen Zhao; Ye Zhang; Stefano Cestellos-Blanco; Qiao Kong; Minliang Lai; Joohoon Kang; Peidong Yang
Publication Date
2020-03
Journal
ACS NANO, v.14, no.3, pp.3500 - 3508
Publisher
AMER CHEMICAL SOC
Abstract
© 2020 American Chemical Society.Halide perovskites have many important optoelectronic properties, including high emission efficiency, high absorption coefficients, color purity, and tunable emission wavelength, which makes these materials promising for optoelectronic applications. However, the inability to precisely control large-scale patterned growth of halide perovskites limits their potential toward various device applications. Here, we report a patterning method for the growth of a cesium lead halide perovskite single crystal array. Our approach consists of two steps: (1) cesium halide salt arrays patterning and (2) chemical vapor transport process to convert salt arrays into single crystal perovskite arrays. Characterizations including energy-dispersive X-ray spectroscopy and photoluminescence have been employed to confirm the chemical compositions and the optical properties of the as-synthesized perovskite arrays. This patterning method enables the patterning of single crystal cesium lead halide perovskite arrays with tunable spacing (from 2 to 20 μm) and crystal size (from 200 nm to 1.2 μm) in high production yield (almost every pixel in the array is successfully grown with converted perovskite crystals). Our large-scale patterning method renders a platform for the study of fundamental properties and opportunities for perovskite-based optoelectronic applications
URI
https://pr.ibs.re.kr/handle/8788114/7139
ISSN
1936-0851
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > Journal Papers
Files in This Item:
202002_Two-Step Patterning of Scalable All-Inorganic Halide Perovskite Arrays.pdfDownload

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