| Autor: |
Do, Thuy Chi, Nguyen, Thuy Van, Bui, Huy, Pham, Thanh Binh, Mogilevtsev, Dmitry Sergeevich, Le Tuan, Tu, Pham, Van Hoi |
| Předmět: |
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| Zdroj: |
Journal of Fluorescence; Sep2024, Vol. 34 Issue 5, p2003-2008, 6p |
| Abstrakt: |
Combination of high quality cavity such as glass microsphere and emitting nano-particle coating layers can create novel strongly emitting devices. Herein, we demonstrate an erbium-doped silica microsphere coated by dual-emission carbon quantum dots, which have the sizes of 3–5 nm, emitting green up-conversion with narrow line-width green light at wavelength of 537 nm. The dual-emission carbon quantum dots fabricated by hydrothermal process and have luminescent emission wavelengths in the range of 410–550 nm. The carbon quantum dot coated erbium silica microsphere is pumped at wavelength of 976 nm through the optical fibre on which microsphere attached on the tip. The dual-emission carbon quantum dot layers attributed to the strong green up-conversion light enhancement similar coated noble metallic thin films, however the light enhancement from dual-emission carbon quantum dot coated erbium silica microsphere depended on the thickness of coating layers. This result is useful for making visible emitting micro-devices and photonic integrated circuits. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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