Crystalline(phthalic acid)-induced Luminescence of Carbon Dots for White-light-emitting Diode Devices

被引：0
|
作者：
Lyu B.-R. [1 ]
Cui J.-C. [1 ]
Xu W.-J. [2 ]
Qin Z.-X. [1 ]
机构：
[1] School of Applied Science, Taiyuan University of Science and Technology, Taiyuan
[2] Shanxi Quantum Digital Technology Co. LTD, Taiyuan
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2022年 / 43卷 / 04期
基金：
中国国家自然科学基金;
关键词：
C-dots; Crystalline-induced; LED; Sulfur and nitrogen co-doping;
D O I：
10.37188/CJL.20220003
中图分类号：
学科分类号：
摘要：
Obtaining simply C-dots-based solid-state fluorescent materials is profound in photoelectric field, yet it is still faced with the challenge to synthesize such material due to the serious quenching effect generated by aggregation of C-dots currently. Here, a pyrolytic route to rapidly synthesize sulfur(S), nitrogen(N)-codoped fluorescent carbon dots wrapped by the crystalline phthalate is reported. After optimizing the preparation conditions, the composite emits a dazzling orange-red fluorescence due to the crystal structured by phthalic acid precursor around the single C-dots during the formation of C-dots, and the formation of crystal creates a barrier to avoid the aggregation of C-dots. In addition, the emission of such composite is characteristic of the multipeaks due to the co-doping of sulfur and nitrogenelements, endowing it an advantage to fabricate white-light-emitting diode. As a result, it achieves a warm-white light with the correlated color temperature(CCT)~3 100 K, color rendering index(CRI)~82 at the chromaticity coordinates of (0.43, 0.40) combined with the commercial phosphors besides of the light emitting diode with an orange light, endowing such fluorescent nanomaterials broad prospect in the photoelectric industry. © 2022, Science Press. All right reserved.
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页码：528 / 535
页数：7
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