122nd General Meeting of the KCS

Type Symposium
Area Recent Research Activities in Solid-State Materials
Room No. Room 323
Time FRI 10:10-:
Code INOR2-4
Subject Solid state materials with noncentrosymmetric structures revealing very large second-harmonic generation response
Authors Kang Min Ok
Department of Chemistry, Chung-Ang University, Korea
Abstract A series of new solid state materials crystallizing in macroscopic noncentrosymmetric (NCS) crystal structures are introduced. Various starting reagents containing important NCS chromophores such as two families of second-order Jahn-Teller (SOJT) distortive cations, π-delocalized anionic groups, π-localized distorted groups, and highly polarizable cations have been utilized in the initial synthesis reactions in order to maximize the second-harmonic generation (SHG) response. Detailed crystal structures of the newly discovered solid state materials have been determined via single crystal X-ray diffraction. Structure-SHG property relationships as well as other physical properties of novel materials with NCS structures such as variable band gaps and thermal stability are also elucidated. The structural origin of exceptionally strong SHG response and the interesting synergistic effect found from the constituent NCS chromophores are discussed.
E-mail kmok@cau.ac.kr