Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1002/adom.202200851

Аннотация: <jats:title>Abstract</jats:title><jats:p>Developing innovative narrow-band green-emitting phosphors featuring low thermal quenching and eco-friendliness for white light-emitting diode (WLED) backlights is a pivotal challenge. Benefitting from narrowband and low toxicity of green-emitting silanized carbon dots (Si-CDs), an efficientПоказать полностьюconfinement and protection strategy through embedding Si-CDs in mesoporous aluminas (MAs) is proposed to construct MAs and Si-CDs composites (Si-CDs@MAs) with superior luminescence properties. Si-CDs@MAs phosphor exhibits green emission at 526 nm with narrow full width at half maximum of 51 nm, zero-thermal quenching even up to 423 K (104.1%@423 K of the emission peak intensity at 298 K), and the internal quantum efficiency of 64.46%. Compared with broad-band yellow-emitting solid-state Si-CDs (S-Si-CDs), the thermal stability, photostability, and water stability of Si-CDs@MAs phosphor are remarkably improved due to surface protection. The WLED backlight is fabricated with optimized Si-CDs@MAs phosphor, which shows high luminous efficacy of 117.43 lm W<jats:sup>−1</jats:sup>and wide color gamut (107% NTSC). Furthermore, this work provides the design principles of realizing stable narrow-band solid-state fluorescence carbon dots, suggesting its great potential for wide-color-gamut display application.</jats:p>

Журнал: Advanced Optical Materials

Выпуск журнала: Т. 10, № 21

ISSN журнала: 21951071

• Chen Jianying (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Zou Xikun (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Li Wei (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Zhang Haoran (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Zhang Xuejie (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Molokeev Maxim S. (Laboratory of Crystal Physics Kirensky Institute of Physics Siberian Branch of the Russian Academy of Sciences (SB RAS) Krasnoyarsk 660036 Russia)
• Liu Yingliang (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Lei Bingfu (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)

• Ядро РИНЦ (eLIBRARY.RU)