Correlation between the Low-Temperature Photoluminescence Spectra and Photovoltaic Properties of Thin Polycrystalline CdTe Films

Bozorboy Joboralievich Akhmadaliev, Olmos Muhammaddovidovich Mamatov, Bakhtiyor Zaylobidinovich Polvonov, Nosirjon Khaydarovich Yuldashev
2016 Journal of Applied Mathematics and Physics  
A dominant intrinsic luminescence band, which is due to the surface potential barriers of crystalline grains, and an edge doublet, which arises as an LO-phonon repetition of the e-h band, has been revealed in the low-temperature photoluminescence spectra of fine-grained obliquely deposited films. Doping film with In impurity leads to quenching of the doublet band, while further thermal treatment causes activation of the intrinsic band, the half-width and the blue shift of the red edge of which
more » ... red edge of which correlates with the maximum value of anomalously high photovoltage generated by the film.
doi:10.4236/jamp.2016.42046 fatcat:d34jrjjfq5cbzkvgozam67co2m