Optimization and performance of nitrogen-doped carbon dots as a color conversion layer for white-LED applications.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY(2019)
摘要
In this study, green-emitting nitrogen-doped carbon dots (N-CDots) were synthesized and incorporated into drop-cast composite films for use as color conversion layers in a white-LED configuration to generate white light. In order to resolve the red deficiency of this configuration, a commercial red phosphor was integrated into the system. Moreover, the N-CDots were also processed into polymer/N-CDot composite fibers, for which we determined the amount of N-CDots that yielded adequate white-light properties. Finally, we showed that white light with excellent properties could be generated by employing both of the fabricated N-CDot composites either as drop-cast films or composite fibers. Hence, N-CDots provide a promising alternative to inorganic phosphors that are commonly employed in white-LED configurations.
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关键词
color conversion layer,electrospinning,nitrogen-doped carbon dots,PVP,solid-state lighting,white LED,white-light generation
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