One-Pot Synthesis of Gel Glass Embedded with Luminescent Silicon Nanoparticles
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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| Title |
One-Pot Synthesis of Gel Glass Embedded with Luminescent Silicon Nanoparticles
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| Creator |
Das , B
Hossain, S M Pramanick, A K Dey, A Ray, M |
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| Subject |
Nanoscience and Nanotechnology
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| Description |
Preparation of highly luminescent glasses involves expensive and complicated processes and usually requires high temperature. In this work, we show that luminescent silicon (Si) nanoparticle (NP)- embedded silicate gel glasses can be developed under near-ambient conditions by a remarkably simple, one-pot strategy, without using any sophisticated instrumentation or technique. Simultaneous hydrolysis and reduction of (3aminopropyl)triethoxysilane leads to the formation of colloidal Si nanocrystals that can be transformed to a glassy phase upon slow evaporation followed by freezing. Structural investigations reveal the formation of a sodium silicate gel glass framework having discernible shear bands, along with embedded Si NPs. High photoluminescence quantum yield (ca. 35-40%), low glass-transition temperature (T-g approximate to 66-73 degrees C), strain-tolerant mechanical stability, and inexpensive preparation make the glass attractive for applications as display materials and photonic converters.
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| Publisher |
Amer Chemical Soc.
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| Date |
2019
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| Type |
Article
PeerReviewed |
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| Relation |
https://doi.org/10.1016/j.triboint.2018.06.013
http://eprints.nmlindia.org/7915/ |
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| Identifier |
Das , B and Hossain, S M and Pramanick, A K and Dey, A and Ray, M (2019) One-Pot Synthesis of Gel Glass Embedded with Luminescent Silicon Nanoparticles. ACS Applied Materials & Interfaces, 11(2) . pp. 2507-2515.
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