Towards efficient and stable multi-color carbon nanoparticle phosphors synergy between inner polar groups and outer silica matrix

doi:10.1007/s40843-018-9248-1

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	Towards efficient and stable multi-color carbon nanoparticle phosphors synergy between inner polar groups and outer silica matrix
	Liu, K. K.; Zhou, R.; Liang, Y. C.; Guo, C. Z.; Xu, Z. K.; Shan, C. X.; Li, L.; Shen, D. Z.
	2018
发表期刊	Science China-Materials
ISSN	2095-8226
卷号	61 期号:9 页码:1191-1200
摘要	Nanocarbon as an eco-friendly and abundant material has strong multi-color fluorescence, which makes it a promising candidate for healthy lighting and display. However, the low fluorescence efficiency and poor stability of multi-color carbon nanoparticle (CNP) phosphors are main hurdles that hinder their applications. This work demonstrated efficient and stable multi-color CNP phosphors through synergy between inner polar groups and outer silica matrix. The polar groups in polyethylene glycol (PEG) 6,000 are favor of high fluorescence of the CNP phosphors, and the low melting point (64 degrees C) of PEG 6,000 helps to improve the thermal stability of the phosphors, while the silica matrix provides protection to the phosphors. Based on this design, blue, green, yellow and red CNP phosphors with photoluminescence quantum yield of 53.1%, 47.4%, 43.8% and 42.3% have been achieved, all of which are the best values in ever reported multi-color CNP phosphors. Furthermore, the fluorescence of the CNP phosphors keeps almost unchanged at 100 degrees C and degrades little in one month, indicating their good thermal tolerance and temporal stability. In addition, multi-color devices including white light-emitting devices (LEDs) have been realized by coating the CNP phosphors onto UV chips. The luminous efficiency, correlated color temperature, Commission Internationale de L'Eclairage and color rendering index of the white LED can reach 12 lm W-1, 6,107 K, (0.32, 0.33) and 89, respectively, indicating the potential applications of the CNP phosphors in lighting and display.
关键词	carbon nanoparticle phosphor multi-color light-emitting devices graphene quantum dots fluorescent ink green nitrogen nanodots luminescence emission facile Materials Science
DOI	10.1007/s40843-018-9248-1
收录类别	SCI ; EI
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61197
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Liu, K. K.,Zhou, R.,Liang, Y. C.,et al. Towards efficient and stable multi-color carbon nanoparticle phosphors synergy between inner polar groups and outer silica matrix[J]. Science China-Materials,2018,61(9):1191-1200.
APA	Liu, K. K..,Zhou, R..,Liang, Y. C..,Guo, C. Z..,Xu, Z. K..,...&Shen, D. Z..(2018).Towards efficient and stable multi-color carbon nanoparticle phosphors synergy between inner polar groups and outer silica matrix.Science China-Materials,61(9),1191-1200.
MLA	Liu, K. K.,et al."Towards efficient and stable multi-color carbon nanoparticle phosphors synergy between inner polar groups and outer silica matrix".Science China-Materials 61.9(2018):1191-1200.

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