One-pot synthesis of red light-emitting CdTexSe(1−x) quantum dots for light-emitting diode application

被引:0
作者
Rongfang Wang
Xingming Wei
Fengling Shen
Dejiang Yu
Liya Zhou
机构
[1] Yulin Normal University,Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of Guangxi, College of Chemistry and Food Science
[2] Guangxi University,School of Chemistry and Chemical Engineering
来源
Applied Physics A | 2021年 / 127卷
关键词
Semiconductors; Luminescence; X-ray diffraction; LEDs;
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摘要
Red light-emitting CdTexSe(1−x) quantum dots (QDs) were synthesized as a new red phosphor for light-emitting diodes. CdTexSe(1−x) QDs were characterized through X-ray diffraction, high-resolution transmission electron microscopy, photoluminescence spectroscopy, and UV–Vis absorption spectroscopy. Results revealed that red-emitting CdTexSe(1−x) QDs were highly crystalline and had good optical properties. A red LED device was fabricated by combining red light-emitting CdTexSe(1−x) QDs as the phosphor with a near-UV InGaN LED chip as the excitation source. The CIE color coordinates of the red LED at (0.6778 and 0.3106) when the reflux time was 1 h. Therefore, CdTexSe(1−x) QDs are good candidates for LED applications.
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