Influence of gamma irradiation on the properties of PbS thin films

Journal Article

2020

Published in: https://doi.org/10.1016/

AlGamdia, Syed Mansoor Alia,∗, M.S. AlGarawia, S. Aldawooda,∗∗, S.A. Al Salmana, S.S. . 2020

 

 

Thin films of lead sulfide (PbS) were prepared on glass substrates using the successive ionic layer adsorption and

reaction technique. To investigate the gamma-induced properties, the deposited thin films were sequentially

exposed to 60Co gamma rays at doses varying from 0 to 75 kGy. X-ray diffraction analysis of the pristine and

irradiated samples showed that the crystallinity of the PbS thin films increased with the gamma dose. Fieldemission

scanning electron microscopy revealed that the PbS particle size increased with the gamma dose up to

25 kGy, and then decreased. Defect peaks at 805.54 and 833.89 nm were found in the photoluminescence

spectra of the pristine samples that were annihilated owing to the gamma exposure. Impedance spectroscopy

indicated that the radiation effect increased the grain resistance as the dose level was increased. The noticeable

changes induced in the structural, optical, and electrical properties of the PbS thin films clearly introduce the

possibility of using them in gamma dosimetry applicat

 

 

• Publication Work Type: Journal Articles
• Volume Number: 171
• Magazine \ Newspaper: Radiation Physics and Chemistry