{'fraction_non_alphanumeric': 0.013816925734024179, 'fraction_numerical': 0.0069084628670120895, 'mean_word_length': 4.686274509803922, '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}}
The Spectral Response of PbS Films

Two possible ways are reported of influencing the spectral response of PbS films prepared by chemical deposition. An increase in the ratio of hydroxyl to lead ions in the deposition solution causes a shift of the peak spectral response from 1.3 μ to 2.8 μ. The addition of a reducing agent (hydroxyl amine hydrochloride) also markedly influences the spectral response. The time constant, resistance and thickness of the films have been measured and an attempt is made to explain all the observations on the basis of a modified conduction model