Nonlinear optical properties in BP QDs and nanosheets

Baohua Zhu; Fangfang Wang; Yaolu Li; Yuzong Gu

doi:10.1117/12.2549917

20 December 2019 Nonlinear optical properties in BP QDs and nanosheets

Baohua Zhu, Fangfang Wang, Yaolu Li, Yuzong Gu

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112094M (2019) https://doi.org/10.1117/12.2549917
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

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

Citation Download Citation

Baohua Zhu, Fangfang Wang, Yaolu Li, and Yuzong Gu "Nonlinear optical properties in BP QDs and nanosheets", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112094M (20 December 2019); https://doi.org/10.1117/12.2549917

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