Controlled growth of single-crystalline erbium chloride silicate with long-lived fluorescence

Single-crystalline erbium chloride silicates have attracted extensive attention due to their high gain compatibility and silicon compatible properties. Long-lived near-infrared fluorescence is critical for reducing a pump density threshold when erbium containing materials are used as active devices....

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Published inOptics express Vol. 30; no. 10; pp. 16690 - 16698
Main Authors Zheng, Min, Zhao, Hepeng, Ou-yang, Yu, Li, Lihui, Zhang, Chi, Li, Yang, Wang, Xiaoxia, Zhuang, Xiujuan
Format Journal Article
LanguageEnglish
Published 09.05.2022
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Summary:Single-crystalline erbium chloride silicates have attracted extensive attention due to their high gain compatibility and silicon compatible properties. Long-lived near-infrared fluorescence is critical for reducing a pump density threshold when erbium containing materials are used as active devices. Here we developed a single-source chemical vapor deposition (CVD) method to grow high-quality single-crystalline erbium chloride silicate nanostructures. The growth mechanism is found composing of two steps, where silicon source comes from the minor evaporation of silicon substrate. The prepared single-crystalline erbium chloride silicate nanowires own diameter of about 200 nm with few lattice defects, and the fluorescence lifetime reaches up to 7.4 ms. A nanoscale thermometer based on their visible band fluorescence is realized.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.456462