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Nonlinear optical properties in BP QDs and nanosheets
Author(s): Baohua Zhu; Fangfang Wang; Yaolu Li; Yuzong Gu
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Paper Abstract

Black phosphorus (BP), an emerging 2D semiconductor, bridges the energy band gap between the zero-band gap graphene and large band gaptransition metal dichalcogenides owing to its size-dependent tunable band gap. In the past few years, significant progress has been made in the structure design, growth and optical properties of BP, yet studies on the size-related nonlinear optical performance need to be carried out. To investigate the correlation between size and the nonlinear optical response, we prepared BP nanosheets and quantum dots via thermochemical method, which are determined by experimental measurements of TEM characterization. The nonlinear optical absorption of BP are enhanced 16.6 times with the size decrease, which might be attributed to the photoinduced dipole moment. Tuning the size of BP nanomaterials is a useful way to enhance the optical nonlinearity for potential applications in optical and optoelectric devices

Paper Details

Date Published: 20 December 2019
PDF: 4 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112094M (20 December 2019); doi: 10.1117/12.2549917
Show Author Affiliations
Baohua Zhu, Henan Univ. (China)
Fangfang Wang, The Shanghai Institute of Technical Physics of the Chinese Academy of Sciences (China)
Yaolu Li, Henan Univ. (China)
Yuzong Gu, Henan Univ. (China)


Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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