A New Deep-Ultraviolet Transparent Orthophosphate LiCs2PO4 with Large Second Harmonic Generation Response
LiCs2PO4,a new deep‐ultraviolet(UV)transparent material,was synthesized by the flux method.The material contains unusual edge‐sharing LiO4‐PO4 tetrahedra.It exhibits a very short absorption edge of λ = 174 nm,and generates the largest powder second harmonic generation(SHG)response for deep‐UV phosphates that do not contain additional anionic groups,i.e.,2.6 times that of KH2PO4(KDP).First‐principles electronic structure analyses confirm the experimental results and suggest that the strong SHG response may originate from the aligned non‐bonding O‐2p orbitals.The discovery and characterization of LiCs2PO4 provides a new insight into the structure‐property relationships of phosphate‐based nonlinear optical materials with large SHG responses and short absorption edges.
Lin Li Ying Wang Bing-Hua Lei Shujuan Han Zhihua Yang Kenneth R.Poeppelmeier Shilie Pan
Key Laboratory of Functional Materials and Devices for Special Environments of CAS,Xinjiang Key Labo Key Laboratory of Functional Materials and Devices for Special Environments of CAS,Xinjiang Key Labo Department of Chemistry,Northwestern University,2145 Sheridan Road,Evanston,Illinois 60208-3113,Unit
国内会议
大连
英文
722-730
2016-09-24（万方平台首次上网日期，不代表论文的发表时间）