The preparation and thermoluminescence of alkaline earth sulphide phosphors |
| |
Authors: | R P Rao |
| |
Affiliation: | (1) Materials Science Centre, Indian Institute of Technology, 721 302 Kharagpur, India;(2) Present address: Central Electrochemical Research Institute, 623 006 Karaikudi, India |
| |
Abstract: | The present article offers a review of the material preparation and thermoluminescence (TL) of alkaline earth sulphide phosphors.
Different methods of material preparation and characterization of alkaline earth sulphides in the form of polycrystalline
powders, films, single crystals and pellets are described. In the process of impurity doping, the role of flux is explained.
The general theory of TL and the different methods used to calculate the trapping parameters (E and s) from the TL glow curves are presented. The effects of impurities, flux, grain size, preparative parameters etc. on
the TL of these materials are reported. The types of traps and trapping parameters obtained by various workers are given.
Considering the results presented by various authors, possible impurity complexes are proposed. The potential applications
of these phosphors in TL and OSL dosimetry, cathode ray tubes, electroluminescence panels and infrared sensors are briefly
discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|