The photothermal stability study of quantum dots embedded in sodium chlorides

Yu Ming Huang, Shun Chieh Hsu, Ning Li, Chung Ping Yu, Li Ann Ke, Chung Ping Huang, Shu Hsiu Chang, Yu Lun Chueh, Hao Chung Kuo, Chien Chung Lin*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

An efficient and useful method for the incorporation of colloidal quantum dots (QDs) into ionic matrices is demonstrated. We prepared three different synthesis methods, which are traditional saturated-salt water, methanol-assisted, and ethanol-assisted methods. The continuous thermal and photonic stress tests indicate that the high temperature, instead of photonic excitation stress, is more detrimental to the illumination capability of the quantum dots. While the traditional saturated-salt water synthesis and methanol-assisted method are quite effective in low temperature and low photon excitation intensity, the quantum dots sealed by the ethanol-assisted method cannot hold under all conditions. An over-1000-h aging test can provide crucial information for the longevity of these quantum dots, and more than 10,000 h of lifetime can be expected.

Original languageEnglish
Article number2
Number of pages12
JournalCrystals
Volume10
Issue number1
DOIs
StatePublished - Jan 2020

Keywords

  • -Wire and-dot devices
  • Light-emitting diodes
  • Nanomaterials
  • Quantum-well

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  • Cite this

    Huang, Y. M., Hsu, S. C., Li, N., Yu, C. P., Ke, L. A., Huang, C. P., Chang, S. H., Chueh, Y. L., Kuo, H. C., & Lin, C. C. (2020). The photothermal stability study of quantum dots embedded in sodium chlorides. Crystals, 10(1), [2]. https://doi.org/10.3390/cryst10010002