title: Facile synthesis of tin phosphite nanosheets via exfoliated bulk crystals: Electronic structure and piezoelectric property.
abstract: Tin phosphite nanosheets were synthesized by a facile exfoliation method. SnHPO3 nanosheets with a thickness of ∼2.6nm readily form a stable colloidal suspension in ethanol using ultrasonic method. Structures and optical properties of the obtained nanosheets were investigated. The prepared SnHPO3 nanosheets exhibit an obvious blue-shift in UV absorbance compared with bulk SnHPO3 crystal materials. Moreover, the piezoelectric coefficients of SnHPO3 monolayer were calculated based on density functional theory, which are larger than that of h-BN monolayer, indicating this material could be a good candidate for designing electro-optical nano-devices.
authors.affiliation: China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University, Wuxi 214122, China. Electronic address: s070054@e.ntu.edu.sg.
authors.forename: Jun-Ling
authors.initials: JL
authors.lastname: Song
authors.affiliation: Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
authors.forename: Xi-Rui
authors.initials: XR
authors.lastname: Zhang
authors.affiliation: Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China. Electronic address: rflu@njust.edu.cn.
authors.forename: Rui-Feng
authors.initials: RF
authors.lastname: Lu
keywords: Density functional theory; Exfoliation; Piezoelectric properties; Quantum size effect; Tin phosphite nanosheets