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CHENGGUO MING1,* , QIMING XIA1, AIHUA ZHOU1, YUANXUE CAI1, XIAOXU CHEN1, FENG SONG2
Up-conversion emissions located at low-absorption window (650-950 nm) of biological tissue is worthy of research for fluorescent probes, which was expected to have a high penetration depth. Our Bi2O3 nano-powders doped with Er3+ and Yb3+ ions can emit strong red up-conversion emission (peak at ~678 nm) under 980 nm excitation. And the color-purity (C-P) and full width half maximum (H-W) of the emission are ~0.99 and 31 nm for sample Bi4 at lower pumping power (373 mW), which can bring a high signal-noise-ratio. This study is greatly helpful in exploring fluorescent materials for internal tissue imaging.
Optical materials and properties, Luminescence, Nanoparticles.
CHENGGUO MING, QIMING XIA, AIHUA ZHOU, YUANXUE CAI, XIAOXU CHEN, FENG SONG, High-purity and narrow-band red fluorescence in Er3+/Yb3+ co-doped Bi2O3 nano-powder, Optoelectronics and Advanced Materials - Rapid Communications, 19, 9-10, September-October 2025, pp.456-460 (2025).
Submitted at: March 26, 2025
Accepted at: Oct. 10, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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