Quantum dots protected from oxidative attack using alumina shells synthesized by atomic layer deposition

B. Yin, B. Sadtler, M. Y. Berezin, E. Thimsen

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Applications of luminescent quantum dots require the materials to be stable under a wide range of temperatures, photon fluxes and chemical environments. In this work, we demonstrate that Al23 shells synthesized by atomic layer deposition on films of CdTe quantum dots are effective to prevent chemical degradation for up to 17 hours under continuous illumination at 90 °C in ambient air. Control samples with no Al23 coating experienced extensive oxidation and severe quenching of the photoluminescence intensity under these conditions.

Original languageEnglish
Pages (from-to)11127-11130
Number of pages4
JournalChemical Communications
Volume52
Issue number74
DOIs
StatePublished - Sep 25 2016

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