Plasmonic oxygen-deficient sodium tungsten bronze NayWO3−x microstructures for SERS detection
Plasmonic oxygen-deficient sodium tungsten bronze NayWO3−x microstructures for SERS detection
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DOI：
10.1016/j.matlet.2023.135113
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发表时间：
2023-08
影响因子：
3
通讯作者：
Dongran Wang;Pengxiang Wang;Quan Deng;Amin Hadi;Zhulin Huang;Haibin Tang
中科院分区：
文献类型：
--
作者：
Dongran Wang;Pengxiang Wang;Quan Deng;Amin Hadi;Zhulin Huang;Haibin Tang
非金属等离子体半导体以其低廉的成本和良好的表面等离子体特性吸引了人们越来越多的研究兴趣。在这里，我们成功地在钨箔上制备了缺氧的钠钨青铜NayWO_3-x微结构，显示出非金属等离子体行为和表面增强拉曼散射(SERS)探测潜力。首次采用溶剂热方法在掺Na的钨片上生长了NaWO_3。然后，引入氧空位，在含氢气氛中进行热处理，得到了NaWO_3-x微结构，该结构在620 nm处显示了局域的表面等离子体共振带。利用NaWO_3-x微结构作为表面增强拉曼散射衬底，对10~(-7)M的亚甲基蓝进行了检测，显示了等离子体非金属材料的应用潜力。
Nonmetal plasmonic semiconductors have attracted increasing research interests for the low cost and promising surface plasmon properties. Here, oxygen-deficient sodium tungsten bronze NayWO3-xmicrostructures on tungsten foil has been facilely fabricated, showing nonmetal plasmonic behavior and surface-enhanced Raman scattering (SERS) detection potential. The NayWO3was firstly grown on tungsten sheets with Na doping in the solvothermal processing. Then, the oxygen vacancies have been introduced with thermal treatment in a hydrogen-containing atmosphere, resulting in NayWO3-xmicrostructures which revealed a localized surface plasmon resonance band at 620 nm. The NayWO3-xmicrostructures was used as SERS substrate for detecting methylene blue of 10-7M, showing application potentials of plasmonic nonmetal materials.