RUCHI PANDEY*, R. KUMAR*#, S. TIWARI**
*Physics Department, Rama University, Mandhana, Kanpur, India-209217
**Department of Physics, School of Physical & Decision Sciences, ”Babasaheb Bhimrao Ambedkar” University, Lucknow (U.P.), India-226025
This review gives an account of a few experiments made to study the effect of external electric field on photoluminescence and thermoluminescence. The explanations of varied nature as offered by different researchers are put forth in the review. The case of thermoluminescence is however unique. Here possible effects of internal electric field due to impurity-vacancy pairs created in a lattice are also important and envisaged through changes in trap depth values reflected by observed TL emissions. The proposed theoretical basis for electric field effect of I-V pair in TL emission is also quoted in this review.
Key words: Photoluminescence, thermoluminescence, electric field effect, impurity-vacancy pair, internal electric field.
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