Application of high-efficiency green fluorescent carbon dots prepared by acid catalysis in multicolour LEDs
文献类型： 外文期刊
作者： An, Yulong 1 ; Liu, Can 1 ; Li, Yan 1 ; Chen, Menglin 1 ; Zheng, Yunwu 1 ; Tian, Hao 3 ; Shi, Rui 1 ; He, Xiahong 1 ; Lin, X 1 ;
作者机构： 1.Southwest Forestry Univ, Key Lab Forest Resources Conservat & Utilizat Sou, Kunming, Yunnan, Peoples R China
2.Southwest Forestry Univ, Key Lab State Forestry Adm Highly Efficient Util, Kunming, Yunnan, Peoples R China
3.Yunnan Acad Agr Sci, Agroprod Proc Res Inst, Kunming, Yunnan, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）
ISSN：
年卷期： 2021 年 11 卷 60 期
页码：
收录情况： SCI
摘要： Acidic reagents play an important role in the preparation of carbon dots (CDs). Therefore, we prepared efficient green fluorescent CDs by potassium bisulfate, acetic acid and hydrochloric acid catalysis and discussed why the acid catalyst induced a fluorescence redshift and improved the quantum yield of the CDs. Furthermore, the concentration-dependent photoluminescence behaviour of the CDs was characterized. CD/PVA composites emitting green to yellow light were obtained by exploiting the fluorescence tunability of CDs. Based on different light-emitting diode substrates, green, yellow and white light-emitting diodes with excellent performance were prepared.
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