2026-10-12T05:51:09Z https://www.scidb.cn/oai

10.57760/sciencedb.011gl 2026-09-10T14:03:34Z

2026-09-10 A photophysical dataset of coal-derived fluorescent carbon dots doi:10.57760/sciencedb.011gl en This dataset compiles and compares the photophysical properties of coal-derived fluorescent carbon dots (CDs) synthesized from anthracite and bituminous coal with different precursors, and examines their structure-property relationships. The optimal excitation and emission wavelengths, full width at half maximum, quantum yield, and fluorescence lifetime were determined using photoluminescence, photoluminescence excitation, ultraviolet-visible absorption spectroscopy absorption, integrating sphere, and time-resolved fluorescence measurements. In addition, the Stokes shift, photon energy, Tauc-derived apparent direct optical gap, and transition rate constants were calculated. The associated experimental conditions, raw data, and derived parameters provide a data basis for comparing and optimizing the performance of coal-derived fluorescent CDs. Carbon dots; Anthracite; Bituminous coal; Photophysical properties; Quantum yields 张少伟 丁燕伟 王亚玲 李宁 刘磊 胡胜亮 刘斌 张泽华 PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank