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Proceedings Paper

Indirect free-exciton luminescence in AgCl
Author(s): Minoru Kobayasi; Yoshihiro Matsushima; Osamu Nishi; Ken-ichi Mizuno; Atsuo H. Matsui
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Paper Abstract

Indirect free-exciton luminescence in AgCl single crystal accompanied by TO(L) phonon emission is found for the first time at 382.9 nm (3.238 eV) at 2 K for picosecond pulse laser excitation at 351 nm (3.53 eV). The luminescence decay curve monitored at 382.9 nm has a fast decay component, 20 ps, which is interpreted as the self-trapping time of holes generated at the L point. A luminescence band peaking at 385 nm (3.221 eV) is found, which is assigned as due to the optical transition from a point around the exit of the quantum mechanical tunneling process through the self-trapping potential barrier. The rise time 70 ps is interpreted as the time required for tunneling. A luminescence band peaking at 386.5 nm (3.208 eV) is found and assigned to be due to excitons bound by shallow impurity.

Paper Details

Date Published: 9 February 1995
PDF: 6 pages
Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200953
Show Author Affiliations
Minoru Kobayasi, Osaka Univ. (Japan)
Yoshihiro Matsushima, Konan Univ. (Japan)
Osamu Nishi, Konan Univ. (Japan)
Ken-ichi Mizuno, Konan Univ. (Japan)
Atsuo H. Matsui, Konan Univ. (Japan)


Published in SPIE Proceedings Vol. 2362:
International Conference on Excitonic Processes in Condensed Matter
Jai Singh, Editor(s)

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