Thickness‐Dependent Structural Stability and Anisotropy of Black Phosphorus. (3rd January 2019)

• Record Type: Journal Article
• Authors: Li, Qian; Huang, Hao; Chen, Zhongwei; Huang, Xin; Deng, Kerong; Luo, Shuiping; Wang, Zhongwu; Yu, Xuefeng; Quan, Zewei
• Is Part Of: Advanced Electronic Materials. Volume 5:Number 3(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-01-03
• Subjects: black phosphorus -- high pressure -- phase diagram -- structural anisotropy -- structural stability; Materials -- Electric properties -- Periodicals; Materials science -- Periodicals; Magnetic materials -- Periodicals; Electronic apparatus and appliances -- Periodicals; 537
• DOI: 10.1002/aelm.201800712
• Languages: English
• ISSNs: 2199-160X

Abstract

Abstract: Black phosphorus (BP) is emerging as a rising star in the post graphene nanomaterials, manifesting intriguing thickness‐dependent properties. However, there is little knowledge about the structural and mechanical stabilities of such BPs and their thickness dependence. Using high pressure technique, a comprehensive study was performed on the thickness‐dependent structural variations of BPs. It has been revealed from high pressure phase diagram that decrease of thickness enhances the structure stability of BPs, which is prominent between 71 and 13 nm. More importantly, an inhomogeneous distortion of the lamellar puckered structure is observed on these BPs, and the thinner ones exhibit enhanced anisotropic compressibility, with a rigid interlayer and zigzag structure and a relatively flexible armchair structure. This systematic study not only provides insights into thickness‐dependent structural nature of BPs but also lays foundation toward design and fabrication of BP‐based devices. Abstract : A comprehensive high pressure study on black phosphorus (BP) with a tunable thickness from ≈71 nm down to ≈6 nm is conducted. Both the thickness‐dependent anisotropic compressibility and phase diagram are summarized and used to construct the thickness–pressure–structure relations of BP.