Enhanced photoluminescence of potassium-doped tungsten oxide by acetone exposure

被引：1

作者：

Patel, Aman ^{[1
]}

Lu, Weigang ^{[1
]}

Birmingham, Blake ^{[1
]}

Johnson, Michael ^{[2
]}

Wang, Danling ^{[2
]}

Zhang, Zhenrong ^{[1
]}

Wang, Kai ^{[3
,4
]}

机构：

[1] Baylor Univ, Dept Phys, Waco, TX 76798 USA

[2] North Dakota State Univ, Dept Elect & Comp Engn, Fargo, ND 58102 USA

[3] Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China

[4] Sun Yat Sen Univ, Shenzhen Res Inst, Ctr Quantum Informat Technol, Shenzhen 518087, Peoples R China

来源：

RSC ADVANCES | 2023年 / 13卷 / 02期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

WATER-TREATMENT; WO3; NANOSTRUCTURES; NANOPARTICLES; FLUORESCENCE; OXIDATION;

D O I：

10.1039/d2ra06267d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Studies of optical properties of doped nanocrystals of tungsten trioxide can elucidate new information about the material. A novel molecule-enhanced photoluminescence (PL) of potassium-doped tungsten trioxide (KxWO) was explored in the presence of different gases to understand charge transfer between molecules and KxWO on the properties of the material. We performed Raman spectroscopy and PL experiments in the presence of gaseous acetone or ethanol mixed with other gases (N-2 and O-2). PL at 630 nm from KxWO was observed and further enhanced when the sample was continuously irradiated with a 532 nm CW laser in acetone. A mechanism of strong emission of the PL induced by the charge transfer between the acetone and the KxWO is proposed.

引用

页码：1236 / 1244

页数：9

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