期刊
OPTICS EXPRESS
卷 24, 期 13, 页码 15071-15078出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.015071
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资金
- National Natural Science Foundation of China (NSFC) [61404017, 61520106012]
- Natural Science Foundation of Chongqing [cstc2015jcyjA1055, cstc2015jcyjA90007]
- Fundamental Research Funds for the Central Universities [106112015CDJZR125511, 106112015CDJXY120001]
All-inorganic perovskite CsPbBr3 quantum dots (QDs) with an emission peak of around 520 nm were synthesized by a hot-injection method, and were systematically studied as green phosphor for light-emitting diodes (LEDs). Highly pure green light with an emission peak of 534 nm and a full-width at half-maximum (FWHM) about 20 nm was achieved using CsPbBr3 QDs and GaN LEDs. Commission Internationale Ed I'Eclairage coordinate of the fabricated green LEDs was (0.203, 0.757). Compared to GaN LEDs, the current-voltage characteristic of the green LED did not show any degradation. Moreover, the green LEDs displayed a luminous efficiency of 31.92 lm/W under an injection current of 10 mA. (C) 2016 Optical Society of America
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