Print Email Facebook Twitter Enhanced Optical Performance of BaMgAl10O17 Title Enhanced Optical Performance of BaMgAl10O17: Eu2+ Phosphor by a Novel Method of Carbon Coating Author Yin, L.J. (TU Delft ChemE/Product and Process Engineering; University of Electronic Science and Technology of China) Dong, Juntao (University of Electronic Science and Technology of China) Wang, Yinping (University of Electronic Science and Technology of China) Zhang, Bi (University of Science and Technology of China) Zhou, Zheng Yang (Peking University) Jian, Xian (University of Electronic Science and Technology of China) Wu, Mengqiang (University of Electronic Science and Technology of China) Xu, Xin (University of Science and Technology of China) van Ommen, J.R. (TU Delft ChemE/Product and Process Engineering) Hintzen, H.T.J.M. (TU Delft RST/Fundamental Aspects of Materials and Energy) Date 2016-01-06 Abstract Many strategies have been adopted to improve thermal degradation of phosphors. Because of the stability and high transmittance of graphene, here we report a novel method of carbon coating on BaMgAl10O17:Eu2+ (BAM) phosphor particles through chemical vapor deposition. The chemical composition, microstructure, and luminescence performance of carbon-coated BAM were characterized carefully. This coating can be controlled within 3-10 atomic layers, depending on the reaction time. Because of the decrease of surface defects and the effective weakening effect of oxidizing Eu2+ to Eu3+ after carbon coating, different layer numbers showed an obvious effect on the optical properties of carbon-coated BAM. Carbon-coated BAM phosphors had higher emission intensity and better oxidation resistance at high temperature than uncoated BAM phosphors. These results indicate that the method of carbon coating on phosphor particles is a promising way to improve the luminescence properties of other phosphors used in lighting and display devices. To reference this document use: http://resolver.tudelft.nl/uuid:71e714e4-f67c-4c21-a7ab-d19b93c0ff46 DOI https://doi.org/10.1021/acs.jpcc.5b10215 Embargo date 2017-01-08 ISSN 1932-7447 Source The Journal of Physical Chemistry C, 120 (4), 2355-2361 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2016 L.J. Yin, Juntao Dong, Yinping Wang, Bi Zhang, Zheng Yang Zhou, Xian Jian, Mengqiang Wu, Xin Xu, J.R. van Ommen, H.T.J.M. Hintzen Files PDF Post_print_Yin_L._J._Enha ... BaM....pdf 824.13 KB Close viewer /islandora/object/uuid:71e714e4-f67c-4c21-a7ab-d19b93c0ff46/datastream/OBJ/view