Luminescent Methane Sensor Based on Energy Transfer from ZnS:Mn2+ Quantum Dots to Analyte Molecule
- 作者: Sergeev A.1,2, Sergeeva K.1, Leonov A.1,2, Postnova I.1, Voznesenskiy S.1,2
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隶属关系:
- Far Eastern Federal University
- Institute of Automation and Control Processes FEB RAS
- 期: 卷 52, 编号 14 (2018)
- 页面: 1846-1848
- 栏目: Nanostructure Devices
- URL: https://journals.rcsi.science/1063-7826/article/view/205054
- DOI: https://doi.org/10.1134/S1063782618140270
- ID: 205054
如何引用文章
详细
Manganese-doped zinc sulfide quantum dots were synthesized by chemical precipitation in an aqueous solution in the presence of glutathione as the capping agent. Obtained samples show dual emission band with maximums at 2.11 eV (Mn2+) and about 3.1 eV (intrinsic defects of ZnS QDs). Under exposure to methane in the concentration range from 100 to 2000 ppm the ZnS:Mn2+ emission spectrum is changed significantly. It was shown, the luminescent sensor response occurs due to photoinduced electron transfer from QDs to methane molecule resulting in QD luminescence quenching and luminescence lifetime decreasing.
作者简介
A. Sergeev
Far Eastern Federal University; Institute of Automation and Control Processes FEB RAS
编辑信件的主要联系方式.
Email: sergeev@iacp.dvo.ru
俄罗斯联邦, Vladivostok; Vladivostok
K. Sergeeva
Far Eastern Federal University
Email: sergeev@iacp.dvo.ru
俄罗斯联邦, Vladivostok
A. Leonov
Far Eastern Federal University; Institute of Automation and Control Processes FEB RAS
Email: sergeev@iacp.dvo.ru
俄罗斯联邦, Vladivostok; Vladivostok
I. Postnova
Far Eastern Federal University
Email: sergeev@iacp.dvo.ru
俄罗斯联邦, Vladivostok
S. Voznesenskiy
Far Eastern Federal University; Institute of Automation and Control Processes FEB RAS
Email: sergeev@iacp.dvo.ru
俄罗斯联邦, Vladivostok; Vladivostok