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By using the seeded physical vapour transport (SPVT) method the CdS:Cr single crystals were grown. Doping concentration up to 5×1018 cm‐3 was achieved. The emission lifetime of the exited state, 5E, of Cr2+ in CdS host was measured to be 0.93 μs at room temperature and 7.3 μs at liquid nitrogen temperature. The measured values of peak absorption and emission cross sections were found to be 1.4×10‐18...
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