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Subnano Te Cluster in Glass for Efficient Full‐Spectrum Conversion.
- Source :
-
Advanced Science . 11/24/2023, Vol. 10 Issue 33, p1-11. 11p. - Publication Year :
- 2023
-
Abstract
- Broadband near‐infrared (NIR) photonic materials have wide applications. Although extensive studies on rare‐earth, transition‐metal, and even semiconductor‐activated materials have enabled the development of a rich NIR material pool, developing broadband and efficient photonic candidates covering the NIR I and II regions from 750 to 1500 nm has been met with limited success. Here, it is reported that a subnano Te cluster with a characteristic configuration different from that of the ion state may fill the aforementioned gap. Further, a strategy is proposed for the in situ generation and stabilization of Te clusters by tuning the cluster evolution in glass. A novel active photonic glass embedded with a Te cluster is fabricated; it exhibits intense and broadband short‐wave NIR luminescence with a central wavelength at 1030 nm and a bandwidth exceeding 330 nm. Interestingly, the glass exhibited a full visible‐spectrum conversion ability from 300 to 800 nm. The application of this unique broadband excitation feature for night vision and tissue penetration is demonstrated using a smartphone as the excitation source. These findings demonstrate a fundamental principle of cluster design in glass for creating new properties and provide a new direction for developing novel cluster‐derived functional composite materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21983844
- Volume :
- 10
- Issue :
- 33
- Database :
- Academic Search Index
- Journal :
- Advanced Science
- Publication Type :
- Academic Journal
- Accession number :
- 173824421
- Full Text :
- https://doi.org/10.1002/advs.202303421