Issue 32, 2018

Facet-dependent nonlinear optical properties of bismuth oxychloride single-crystal nanosheets

Abstract

Single-crystal nanosheets of BiOCl with preferentially exposed {001} and {010} facets were synthesized, and their third-order nonlinear optical performances were evaluated by Z-scan measurements. Both BiOCl{001} and BiOCl{010} exhibit reverse saturable absorption, with an effective nonlinear absorption coefficient of (8.17 ± 1.13) × 10−4 cm GM−1 for BiOCl{001} and (11.53 ± 1.30) × 10−4 cm GM−1 for BiOCl{010}. According to the measurements of photoluminescence and electron paramagnetic resonance, excited-state absorption is found to prevail over two-photon absorption during the nonlinear optical process, and the facet-dependent response of BiOCl nanosheets is attributed to the localization of excited carriers correlated with the defect density and size of the atomic slab.

Graphical abstract: Facet-dependent nonlinear optical properties of bismuth oxychloride single-crystal nanosheets

Supplementary files

Article information

Article type
Paper
Submitted
07 Apr 2018
Accepted
18 Jul 2018
First published
20 Jul 2018

J. Mater. Chem. C, 2018,6, 8709-8716

Facet-dependent nonlinear optical properties of bismuth oxychloride single-crystal nanosheets

H. Li, S. Xu, Z. Huang, J. Huang, J. Wang, L. Zhang and C. Zhang, J. Mater. Chem. C, 2018, 6, 8709 DOI: 10.1039/C8TC01613E

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