{'fraction_non_alphanumeric': 0.01597444089456869, 'fraction_numerical': 0.004792332268370607, 'mean_word_length': 5.087378640776699, '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}}
Unusual capacitance emission transients in CIGS caused by large defect entropy changes

Capacitance transient data from bias-pulse experiments on CdS/CIGS solar cells show an unusual behavior at high temperatures. Above 350 K a minority carrier trap, with a larger activation energy than a majority carrier trap, emits faster than the lower activation-energy minority trap. A simple enthalpy model for trap emission cannot explain this counterintuitive behavior, but the more complete Gibbs free energy model that includes entropy can explain it. We show that entropy plays a major role in carrier emission from traps in CIGS.