Defect formation in layered ionic crystals of (CnH2n+1NH3)2MCl4:M=Cd, Cu, Mn;n=1,2,3 and CsMnCl3-2H20

Takehisa Yoshinari; Tomochika Matsuyama; Shigetaka Shimanuki; Takao Nanba; Masami Fujisawa; Hitoshi Yamaoka; Tomoyoshi Kamikawa; Kiyoshi Aoyagi

doi:10.1117/12.200970

9 February 1995 Defect formation in layered ionic crystals of (CnH2n+1NH3)2MCl4:M=Cd, Cu, Mn;n=1,2,3 and CsMnCl3-2H20

Takehisa Yoshinari, Tomochika Matsuyama, Shigetaka Shimanuki, Takao Nanba, Masami Fujisawa, Hitoshi Yamaoka, Tomoyoshi Kamikawa, Kiyoshi Aoyagi

Author Affiliations +

Proceedings Volume 2362, International Conference on Excitonic Processes in Condensed Matter; (1995) https://doi.org/10.1117/12.200970
Event: Excitonic Processes in Condensed Matter: International Conference, 1994, Darwin, Australia

Abstract

Metal precipitation has been observed at the 2D crystals of alkylammonium metal chlorides, (C_nH_2n+1NH₃)₂MCl₄ which were X- or (gamma) -irradiated at 77 K and warmed to room temperature. It has been also observed in the 1D crystals of CsMnCl₃(DOT)2H₂O which was irradiated at room temperature similar as photochromism of silver halides. The different temperature conditions of metal precipitation suggest a variety of defect formation mechanisms. In alkylammonium metal chlorides, Cl₂^- molecule ions are formed at 77 K and electron trap centers are observed at 15 K with X-ray irradiation. The electron trap centers are very unstable and are bleached at temperatures higher than 30 K.

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Takehisa Yoshinari, Tomochika Matsuyama, Shigetaka Shimanuki, Takao Nanba, Masami Fujisawa, Hitoshi Yamaoka, Tomoyoshi Kamikawa, and Kiyoshi Aoyagi "Defect formation in layered ionic crystals of (CnH2n+1NH3)2MCl4:M=Cd, Cu, Mn;n=1,2,3 and CsMnCl3-2H20", Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); https://doi.org/10.1117/12.200970

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