A novel approach to coat silica on quantum dots: Forcing decomposition of tetraethyl orthosilicate in toluene at high temperature

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成果类型：

期刊论文

作者：

Cao, Xueyan;Zhang, Qinggang;Zhang, Congyang;Li, Zhichun;Zheng, Weilin;...

通讯作者：

Huang, Xintang;Kong, Long

作者机构：

[Cao, Xueyan; Huang, Xintang] Cent China Normal Univ, Inst Nanosci & Nanotechnol, Coll Phys Sci & Technol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.

[Zhang, Congyang; Kong, Long; Cao, Xueyan; Zhang, Qinggang; Wang, Bo; Li, Zhichun; Zheng, Weilin; Li, Liang; Liu, Min; Huang, Shouqiang] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R China.

[Li, Liang] Shanghai Inst Pollut Control & Ecol Secur, 1239 Siping Rd, Shanghai 200092, Peoples R China.

通讯机构：

[Huang, Xintang] C

[Kong, Long] S

Cent China Normal Univ, Inst Nanosci & Nanotechnol, Coll Phys Sci & Technol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.

Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R China.

语种：

英文

关键词：

Core/shell quantum dots;SiO2;Stability;TEOS;Water solubility

期刊：

Journal of Alloys and Compounds

ISSN：

0925-8388

年：

2020

卷：

817

页码：

152698

DOI：

10.1016/j.jallcom.2019.152698

基金类别：

Major National Science and Technology Special Project of Water Pollution Control and Remediation [2017ZX07202]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [21773155]; Shanghai Sailing Program [19YF1422200]

机构署名：

本校为第一且通讯机构

院系归属：

物理科学与技术学院

摘要：

The coating of silica (SiO2) on quantum dots (QDs) has been widely studied, because SiO2 can protect QDs from the damages of moisture, radiation, and heat. Conventional SiO2 coating methods for QDs are usually performed in aqueous or emulsion solutions, which require the addition of water for the hydrolysis of SiO2 precursors and lead to the photoluminescence (PL) quenching of QDs. To address this issue, a novel SiO2 coating approach on single particle level was developed by the thermally forcing decomposition of tetraethyl orthosilicate in toluene. The CdSe/CdS/ZnS:Al@SiO2 nanoparticles (NPs)...

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A novel approach to coat silica on quantum dots: Forcing decomposition of tetraethyl orthosilicate in toluene at high temperature

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