{'fraction_non_alphanumeric': 0.02277227722772277, 'fraction_numerical': 0.0029702970297029703, 'mean_word_length': 5.39873417721519, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Structural and photo-conducting properties of Cd1-xAlxS thin films prepared by spray pyroliysis

Structural and photo conducting properties of Al doped CdS thin films prepared by a low cost spray pyrolysis deposition (SPD) technique are reported in the present paper. Microstructural investigations are carried out using X-Ray Diffraction (XRD) and Atomic Force Microscopy (AFM). Crystallite and grain size of Al doped CdS thin films decreases with Al incorporation and conductivity in dark and persistent photocurrent increases with increasing Al concentration in the CdS. Prominent features are observed at low doping level (1-2%) in high activation energy, photoconductivity, photosensitivity and relaxation time. Doping of Al in CdS develops the donor energy levels between the energy gap that assists the trapping of the charge carriers and hence the enhancement in the above mentioned properties. The increase in room temperature conductivity (σDark) upon Al doping shows the presence of charge carriers.