A Facile Approach for Elemental-Doped Carbon Quantum Dots and Their Application for Efficient Photodetectors

被引：35

作者：

Gao, Lingfeng ^{[1
]}

Wang, Lude ^{[2
]}

Kuklin, Artem, V ^{[3
]}

Gao, Jie ^{[4
]}

Yin, Shouchun ^{[1
]}

Agren, Hans ^{[3
,5
]}

Zhang, Han ^{[6
]}

机构：

[1] Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, 2318 Yuhangtang Rd, Hangzhou 311121, Peoples R China

[2] Nanjing Univ Tradit Chinese Med, Sch Artificial Intelligence & Informat Technol, 138 Xianling Rd, Nanjing 210023, Peoples R China

[3] Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden

[4] Henan Univ, Coll Chem & Chem Engn, Kaifeng 475004, Henan, Peoples R China

[5] Nanjing Univ Sci & Technol, Inst Optoelect & Nanomat, MIIT Key Lab Adv Display Mat & Devices, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China

[6] Shenzhen Univ, Coll Optoelect Engn, Shenzhen 518060, Peoples R China

来源：

SMALL | 2021年 / 17卷 / 52期

基金：

中国国家自然科学基金;

关键词：

carbon quantum dots; lanthanide-doped; narrow-band; photodetectors; FLUORESCENCE; NANOPARTICLES; PHOSPHORUS; CHEMISTRY; GLUCOSE;

D O I：

10.1002/smll.202105683

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The present work demonstrates a facile hydrothermal approach to synthesize lanthanide-doped carbon quantum dots (CQDs) with europium and/or gadolinium elements. Taking the advantage of broadband adsorption in the ultraviolet-visible region, the doped QDs are directly used as building blocks for photo-electrochemical (PEC)-type photodetectors (PDs) and their performance is systematically investigated under various conditions. The europium (Eu) and gadolinium (Gd) co-doped (C:EuGd) QDs exhibit better photo-response than the single-elemental doped ones and also show outstanding long-term stability. According to the apparent response to light from 350 to 400 nm, the C:EuGd QDs are demonstrated to hold great potential for narrow-band PDs. This work highlights the practical applications of lanthanide-doped CQDs for PDs, and the results are beneficial for the development of elemental-doped CQDs in general.

引用

页数：9

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