Single-Crystalline ZnO Spherical Particles by Pulsed Laser Irradiation of Colloidal Nanoparticles for Ultraviolet Photodetection



Wang, H, Pyatenko, A, Koshizaki, N, Moehwald, H and Shchukin, D ORCID: 0000-0002-2936-804X
(2014) Single-Crystalline ZnO Spherical Particles by Pulsed Laser Irradiation of Colloidal Nanoparticles for Ultraviolet Photodetection. ACS APPLIED MATERIALS & INTERFACES, 6 (4). pp. 2241-2247.

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Abstract

We report the formation and ultraviolet (UV) photodetection of single-crystalline spherical ZnO particles by pulsed laser irradiation of commercial ZnO nanoparticles in water. The phase and microstructure analysis before and after laser irradiation reveals a crystal size increase and shape transformation from irregular to spherical. Time-dependent laser irradiation confirmed that fusion is the reason for nanoparticle growth up to single-crystalline spherical particles. After rapid cooling, they maintain size and shape and possess unique optical and electrical properties. Because of the single-crystalline feature and smooth surfaces, high and selective sensing of ultraviolet light is observed.

Item Type: Article
Additional Information: ## TULIP Type: Articles/Papers (Journal) ##
Uncontrolled Keywords: ZnO, pulsed laser irradiation, photodetection, single crystalline, spherical particles
Subjects: ?? QD ??
Depositing User: Symplectic Admin
Date Deposited: 12 Jan 2016 09:03
Last Modified: 15 Dec 2022 12:42
DOI: 10.1021/am500443a
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/2046080

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