Optical-properties of (F-2(+)) H Centers in NACL-SH- Crystals

The optical properties of the (F)H center are investigated in NaCl: SH−. The negative sulfur ion stabilizes the center in the same way as the oxygen ion does in the better known system NaCl: OH−. The spectral properties, absorption, emission, and excitation spectra, in the two cases are quite similar, but in NaCl: SH− the F centers are more easily bound to the sulfur ion and this fact yields a greater stability to these centers. Die optischen Eigenschaften des (F)H-Zentrums in NaCl: SH− werden untersucht. Das negative Schwefelion stabilisiert das Zentrum in der gleichen Weise wie das Sauerstoffion es in dem besser bekannten System NaCl: OH− tut. Die spektralen Eigenschaften, Absorptions-, Emissions- und Anregungsspektren, sind in beiden Fallen ganz ahnlich, jedoch sind die F-Zentren in NaCl: SH− schwacher an die Schwefelionen gebunden, was diesen Zentren eine grosere Stabilitat verleiht.

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