Combustion synthesis and preliminary luminescence studies of LiBaPO4 : Tb3+ phosphor

Bulletin of materials science

A Soni³  M S Kulkarni³  S K Omanwar²  C B Palan¹  N S Bajaj² 

[1] Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, India$$Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, India$$Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, IndiaDepartment of Physics, Sant Gadge Baba Amravati University, Amravati 444602, India$$Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, India$$Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, IndiaDepartment of Physics, Sant Gadge Baba Amravati University, Amravati 444602, India$$Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, India$$;Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, India$$Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, IndiaDepartment of Physics, Sant Gadge Baba Amravati University, Amravati 444602, India$$;Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, India$$Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, IndiaRadiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, India$$

关键词: Combustion synthesis;    photoionization cross-sections;    TL;    OSL;    PL.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The polycrystalline sample of LiBaPO₄ : Tb³⁺ (LBPT) was successfully synthesized by solution combustion synthesis and studied for its luminescence characteristics. The thermoluminescence (TL) glow curve of LBPT material consists of two peaks at 204.54 and 251.21°C. The optimum concentration was 0.005 mol to obtain the higher TL intensity compared to commercial TLD-100 phosphor. The peak shape method was used to calculate kinetic parameter (activation energy and frequency factor). In CW-OSL mode its sensitivity for beta exposure was found to be 50% compared to commercially available ð›�?-Al₂O₃ : C and 40% than LMP (BARC), and photoluminescence spectrum of LBPT shows green emission when excited with 225 nm UV source.

【 授权许可】

Unknown