Luminescent studies of impurity doped SrS phosphors

Bulletin of materials science

S J Dhoble¹  Vijay Singh²  T K Gundu Rao³  Manoj Tiwari² 

[1] Department of Physics, Kamla Nehru College, Nagpur 440 009, India$$Department of Physics, Kamla Nehru College, Nagpur 440 009, IndiaDepartment of Physics, Kamla Nehru College, Nagpur 440 009, India$$;Department of Physics, Regional Institute of Education, Bhopal 462 013, India$$Department of Physics, Regional Institute of Education, Bhopal 462 013, IndiaDepartment of Physics, Regional Institute of Education, Bhopal 462 013, India$$;Regional Sophisticated Instrumentation Centre, Indian Institute of Technology, Mumbai 400 076, India$$Regional Sophisticated Instrumentation Centre, Indian Institute of Technology, Mumbai 400 076, IndiaRegional Sophisticated Instrumentation Centre, Indian Institute of Technology, Mumbai 400 076, India$$

关键词: SrS phosphors;    ESR;    photoluminescence;    thermoluminescence.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

SrS phosphors activated with Ce and Dy ions were prepared by solid-state diffusion method. Photoluminescent study was carried out on SrS : Ce, SrS : Dy and SrS : Dy, Ce. Thermoluminescence and electron spin resonance studies were also carried out on SrS : Dy phosphor. The thermoluminescence glow curve shows a peak at around 142°C. Irradiated SrS : Dy exhibits an ESR line due to a defect centre. Thermal annealing behaviour indicates that this centre correlates with the TL peak at 142°C. The centre is characterized by an isotropic g-value of 2.0039 and is assigned to a𝐹⁺ centre.

【 授权许可】

Unknown