生物基碳点制备及其在LED器件上的应用

王琴; 杨雯; 庄镜儒; 李靖; 杨培志; 汪正良

doi:10.37188/CJL.20210159

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生物基碳点制备及其在LED器件上的应用

特邀报告 | 更新时间：2021-09-03

- 生物基碳点制备及其在LED器件上的应用
  增强出版
- Preparation and Application of Bio-based Carbon Dots for LED Chips
- 发光学报 2021年42卷第8期页码：1314-1322
- 作者机构：
  
  1.云南师范大学　可再生能源材料先进技术与制备教育部重点实验室，云南　昆明　 650500
  2.云南师范大学　化学化工学院，云南　昆明　 650500
  3.云南民族大学　化学与环境学院，云南　昆明　 650500
- 作者简介：
  
  [ "王琴(1985-)，女，重庆人，硕士，高级实验师，2011年于中山大学获得硕士学位，主要从事低维材料、光电材料的开发与应用的研究。E-mail: wqin@foxmail.com" ]
  [ "杨培志(1966-)，男，云南大理人，博士，研究员，博士研究生导师，1999年于中国科学院上海光学精密机械研究所获得博士学位，主要从事光电材料与器件、低维材料及新型太阳电池的研究。E-mail: pzhyang@hotmail.com" ]
- 基金信息：
  
  国家自然科学基金(U1802257);国家自然科学基金-云南联合基金(U1702254);云南省高校科技创新团队支持计划资助项目
- DOI：10.37188/CJL.20210159
  中图分类号：
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王琴, 杨雯, 庄镜儒, 等. 生物基碳点制备及其在LED器件上的应用[J]. 发光学报, 2021,42(8):1314-1322.

Qin WANG, Wen YANG, Jing-ru ZHUANG, et al. Preparation and Application of Bio-based Carbon Dots for LED Chips[J]. Chinese Journal of Luminescence, 2021,42(8):1314-1322.
王琴, 杨雯, 庄镜儒, 等. 生物基碳点制备及其在LED器件上的应用[J]. 发光学报, 2021,42(8):1314-1322. DOI： 10.37188/CJL.20210159.

Qin WANG, Wen YANG, Jing-ru ZHUANG, et al. Preparation and Application of Bio-based Carbon Dots for LED Chips[J]. Chinese Journal of Luminescence, 2021,42(8):1314-1322. DOI： 10.37188/CJL.20210159.

摘要

以大麦苗为碳源，采用一锅热解法成功获得碳点(CDs)，并对其硼、氮及混合掺杂体系进行了研究。该类型碳点在水溶液中表现出很强的紫外光区宽带吸收，并产生独特的近紫外光和蓝光双发射光学特性；单掺硼及硼氮共掺的CDs粉体表现出良好的固体发光特性，在蓝光区具有较强激发并产生明亮的绿光发射。将这两种CDs作为荧光粉与蓝光GaN芯片结合，制作出LED器件，表现出良好的发光性能。通过K,2,SiF,6,∶Mn,4+,红粉的引入可得到高效、高显色性的白光LED。

Abstract

Carbon dots(CDs) were successfully prepared by the one-pot pyrolysis method using the barley seedling as carbon source. The boron, nitrogen and mixed doping system of CDs were studied. The solution of CDs exhibits broad absorption in the UV region. Two emission bands can be observed in the near UV and blue regions. It is worth to note that CDs powder doped with B and co-doped with B and N can be effectively excited by the blue light and emit bright green light. The LED devices were fabricated by combining such two kinds of CDs powder, which exhibit excellent luminescent properties. Using commercial K,2,SiF,6,∶Mn,4+, as red components, white LEDs with high luminous efficiency and color rendering index can be obtained.

关键词

碳点大麦苗发光性能LED器件

Keywords

carbon dotsbarley seedlingluminescent propertiesLED devices

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