Optical Properties of a CsMnBr3 Single Crystal

Xu, Yingzhuang1; Li, Junzi1; Zhao, Fuli2; Gao, Yang1; Chen, Rui2; He, Tingchao1

2022-08-23

10.1021/acsomega.2c03661

ACS Omega   Impact Factor & Quartile

2470-1343

Lead-free perovskite materials with good stability are promising for various applications. In order to explore their application in optoelectronic devices, it is essential to investigate their fundamental optical properties. In this work, we have synthesized a CsMnBr3 single crystal (SC) with red emission at similar to 621 nm and studied their optical properties. Through the measurement of temperature-dependent photoluminescence (PL) spectra, it is found that a phase transition occurs at approximately 100 K in the SC, which is absent in the CsMnBr3 nanocrystals (NCs). Furthermore, the SC exhibits stronger electron and longitudinal optical phonon coupling strength than that of the NCs at low temperatures. In addition, under the resonant excitation at 600 nm, the SC possesses strong saturable absorption property, with a modulation depth of similar to 27%. Interestingly, the SC also exhibits a large two-photon absorption coefficient of similar to 0.035 cm GW-1 at 800 nm and an excellent optical limiting behavior. The experimental results indicate that the CsMnBr3 SC is a class of excellent environmentally friendly optoelectronic materials.

SCI

English

Others

Guangdong Basic and Applied Basic Research Foundation[2019A1515012094] ; Project of Department of Education of Guangdong Province[2018KTSCX198] ; Science and Technology Planning Project of Shenzhen Municipality["20200812170648001","JCYJ20190808121211510","JCYJ 20200826143347001"]

Chemistry

Chemistry, Multidisciplinary

WOS:000846760400001

AMER CHEMICAL SOC

Web of Science

1.Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Xu, Yingzhuang,Li, Junzi,Zhao, Fuli,et al. Optical Properties of a CsMnBr3 Single Crystal[J]. ACS Omega,2022,7(33).

Xu, Yingzhuang,Li, Junzi,Zhao, Fuli,Gao, Yang,Chen, Rui,&He, Tingchao.(2022).Optical Properties of a CsMnBr3 Single Crystal.ACS Omega,7(33).

Xu, Yingzhuang,et al."Optical Properties of a CsMnBr3 Single Crystal".ACS Omega 7.33(2022).