AI Article Synopsis
- The study focuses on the creation of elemental trigonal tellurium (t-Te) on tellurite glass surfaces when exposed to femtosecond laser pulses, exploring how different laser settings and environmental conditions affect this process.
- High-resolution imaging and a thermal diffusion model reveal that a single laser pulse can induce crystallization without melting the glass lattice, showcasing a complex phase transformation with varying crystal structures formed at different depths.
- The research demonstrates that while different atmospheric conditions can inhibit crystallization, the temperature of the substrate does not significantly influence the formation of t-Te nanocrystals, providing insights for future development of transparent electronic devices.
Article Abstract
The formation of elemental trigonal tellurium (t-Te) on tellurite glass surfaces exposed to femtosecond laser pulses is discussed. Specifically, the underlying elemental crystallization phenomenon is investigated by altering laser parameters in common tellurite glass compositions under various ambient conditions. Elemental crystallization of t-Te by a single femtosecond laser pulse is unveiled by high-resolution imaging and analysis. The thermal diffusion model reveals the absence of lattice melting upon a single laser pulse, highlighting the complexity of the phase transformation. The typical cross-section displays three different crystal configurations over its depth, in which the overall thickness increases with each subsequent pulse. The effect of various controlled atmospheres shows the suppressing nature of the elemental crystallization, whereas the substrate temperature shows no significant impact on the nucleation of t-Te nanocrystals. This research gives new insight into the elemental crystallization of glass upon femtosecond laser irradiation and shows the potential to fabricate functional transparent electronic micro/nanodevices.
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| http://dx.doi.org/10.1002/adma.202210446 | DOI Listing |
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