Vibrational Relaxation and Hot Luminescence of Ne*2 Centers in Solid Neon

✍ Scribed by R. Gaethke; P. Gürtler; R. Kink; E. Roick; G. Zimmerer

• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: English
• Weight: 581 KB
• Volume: 124
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2221240136

✦ Synopsis

Abstract

Hot luminescence of Ne^*^~2~ centers (molecular type self‐trapped excitons) in solid Ne is measured under state selectiveexcitation using synchrotron radiation. The luminescence spectra are analysed with the aid of a new theory on vibrational relaxation of the Ne^*^~2~ centers. It is possible to show that the rate of relaxation is slower for centers located at the surface than for centers in the bulkof the Ne solid. In combination with a direct measurement of the lifetimes (1 ns for ^1^∑^+^~u~; 5 μs for ^3^∑^+^~u~), absolute values for the relaxation rates are obtained. They range between 6.6 × 10^4^ s^−1^ (bulk) and 6.6 × 10^3^ s^−1^ (surface).