Optical absorption spectra of the mixed crystals of KBr1-xIx:Tl+ crystals studied at room temperature are reported.The absorption spectra indicated the appearance of additional bands on the low energy side of the Char...Optical absorption spectra of the mixed crystals of KBr1-xIx:Tl+ crystals studied at room temperature are reported.The absorption spectra indicated the appearance of additional bands on the low energy side of the Characteristic A,B and C absorption bands of KBr:Tl+ single crystals with increasing iodine composition.Comparing with earlier reports,the additional bands were attributed to the complex Tl+centers in the mixed configuration surrounded by Br-and I-ions as nearest neighbors.The absorption spectra of gamma irradiated mixed crystals showed F band,which shifts towards low energy side with the composition of iodine ions in the mixed crystals.展开更多
基金the All India Council for Technical Education (AICTE),New Delhi,India for granting funds for this investigation under TAPTEC scheme vide project File(No.8018/RDII/BOR/TAP(371)/99-2000)
文摘Optical absorption spectra of the mixed crystals of KBr1-xIx:Tl+ crystals studied at room temperature are reported.The absorption spectra indicated the appearance of additional bands on the low energy side of the Characteristic A,B and C absorption bands of KBr:Tl+ single crystals with increasing iodine composition.Comparing with earlier reports,the additional bands were attributed to the complex Tl+centers in the mixed configuration surrounded by Br-and I-ions as nearest neighbors.The absorption spectra of gamma irradiated mixed crystals showed F band,which shifts towards low energy side with the composition of iodine ions in the mixed crystals.
