Luminescence of Bi3+ in boron rich La2O3CaOB2O3 (glass and crystalline) ternary system
1991; Elsevier BV; Volume: 26; Issue: 6 Linguagem: Inglês
10.1016/0025-5408(91)90188-r
ISSN1873-4227
AutoresP. Jeyagopal, R. Jaganathan, M. Kottaisamy, KR Kannan, R.L. Narayanan,
Tópico(s)Solid State Laser Technologies
ResumoBi3+ in boron rich La2O3CaOB2O3 ternary system (both crystalline and glass modifications) yield intense band emission in UV region. Two types of Bi3+ emission viz. emission due to Bi3+ isolated centres and Bi3+ clusters are observed in this system. Bi3+ excited state in the crystalline system undergoes Jahn-Teller distortion while this is not observed in the glass modification attributable to the absence of symmetry elements and softer surroundings for Bi3+ ion. Various results obtained based on the luminescence of Bi3+ in this system are discussed.
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