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Eu<SUP>3+</SUP>-doped Bi<sub>2</sub>MoO<sub>6</sub> phosphors for highly sensitive and visible H<sub>2</sub>S gas indicator material: optical and color properties, and gas sensing performance
- Issue Date
- Jul-2021
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS LETTERS, v.46, no.13, pp 3231 - 3234
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS LETTERS
- Volume
- 46
- Number
- 13
- Start Page
- 3231
- End Page
- 3234
- ISSN
- 0146-9592
1539-4794
- Abstract
- Bi2MoO6:Eu3+ phosphors were synthesized by a solid state reaction, and H2S gas sensing performance was investigated. The Bi2MoO6:Eu3+ phosphors showed an excellent red emission due to f-f transition of Eu3+. Owing to the exposure to H2S gas, the emission intensity of the phosphors dramatically decreased to 40% of the initial value. The body color of the phosphor changed from yellow-white to dark brown. The response of the Bi2MoO6:Eu3+ phosphors for H2S gas was started from10 ppm, and the emission intensity exponentially decreased with increasing the concentration until 500 ppm. (C) 2021 Optical Society of America
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