Enhanced Stokes-shift and dispersibility in non-polar PMMA solvent of CdTe quantum dots by silica coating
| Autor: | J. I. Contreras-Rascón, Joel Díaz-Reyes, Mario Enrique Álvarez-Ramos, Gerardo Saavedra-Rodríguez, R. Sánchez-Zeferino, A. Flores-Pacheco |
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| Rok vydání: | 2021 |
| Předmět: |
Fabrication
010304 chemical physics Chemistry business.industry General Physics and Astronomy 010402 general chemistry 01 natural sciences Cadmium telluride photovoltaics 0104 chemical sciences Solvent symbols.namesake Quantum dot Stokes shift 0103 physical sciences symbols Surface modification Optoelectronics Physical and Theoretical Chemistry Photonics business Luminescence |
| Zdroj: | Chemical Physics. 544:111102 |
| ISSN: | 0301-0104 |
| DOI: | 10.1016/j.chemphys.2021.111102 |
| Popis: | Silica-coated cadmium telluride quantum dots (CdTe@SiO2) exhibit increased sensitivity to UV illumination within the 300–400 nm range, allowing long and efficient Stokes-shifted emissions with more than 300 nm of separation from the excitation source. In addition, the surface modification of water-soluble CdTe quantum dots promotes a better dispersibility in a non-polar solvent (chloroform), allowing the facile fabrication of a highly luminescent PMMA/CdTe@SiO2 composite with uniformly distributed CdTe@SiO2 clusters suitable for photonic applications. |
| Databáze: | OpenAIRE |
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