Preparation of highly luminescent nanocrystals and their application to light-emitting diodes

被引:210
作者
Lim, Jungeun
Jun, Shinae
Jang, Eunjoo
Baik, Hionsuck
Kim, Hyungkun
Cho, Jaehee
机构
[1] Samsung Adv Inst Technol, Adv Mat Lab, Yongin 449712, Gyeonggi Do, South Korea
[2] Samsung Adv Inst Technol, Analyt Engn Ctr, Yongin 449712, Gyeonggi Do, South Korea
关键词
CDSE/CDS CORE/SHELL NANOCRYSTALS; SEMICONDUCTOR NANOCRYSTALS;
D O I
10.1002/adma.200602642
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Core/multishell-structured semiconductor nanocrystals (NCs) are prepared in multigram amounts through a one-pot process without a core-separation step (see figure and cover). The NCs show a maximum quantum efficiency of 85% at a controlled wavelength and strong photostability against UV-light bleaching. The NCs are applied as phosphors on UV-light-emitting diodes (390 nm source), which emit light at 620 nm with a 48% power conversion efficiency.
引用
收藏
页码:1927 / +
页数:7
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