{'fraction_non_alphanumeric': 0.03109452736318408, 'fraction_numerical': 0.018656716417910446, 'mean_word_length': 5.880341880341881, '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}}
Detection of Luminescence Centers in Colloidal Cd\(_{0.3}\)Zn\(_{0.7}\)S Nanocrystals by Synchronous Luminescence Spectroscopy

With the advantages of selectivity, spectral resolution and reduction of interference on account of light scattering, synchronous luminescence spectroscopy is successfully applied to analyze complex mixtures with overlapped emission and/or excitation spectra. Herein, we report the application of synchronous luminescence spectroscopy to detect luminescence centers in colloidal Cd0.3Zn0.7S nanocrystals and the emission peaks at 460 and 515 nm which are attributed to the emission transitions related to sulfur and zinc/cadmium vacancies. The obtained results are useful to clarify the nature of luminescence centers as well as relaxation mechanism in CdxZn1−xS nanocrystals.