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Investigation of the size-property relationship in CuInS quantum dots

Nanoscale, ISSN: 2040-3372, Vol: 7, Issue: 43, Page: 18105-18118
2015
  • 37
    Citations
  • 0
    Usage
  • 36
    Captures
  • 2
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    37
  • Captures
    36
  • Mentions
    2
    • News Mentions
      1
      • 1
    • References
      1
      • 1

Most Recent News

Investigation of the size-property relationship in CuInS2 quantum dots

(Before It's News) Where size matters Nanoscale , 2015, Accepted Manuscript DOI : 10.1039/C5NR04291G, Paper Wolfgang Peukert, Tugce Akdas, Johannes Walter, Doris Segets, Monica Distaso,

Article Description

In this work we investigated fundamental properties of CuInS quantum dots in dependence of the particle size distribution (PSD). Size-selective precipitation (SSP) with acetone as poor solvent was performed as an adequate post-processing step. Our results provide deep insight into the correlation between particle size and various optical characteristics as bandgap energy, absorption and emission features and the broadness of the emission signal. These structure-property relationships are only achieved due to the unique combination of different analytical techniques. Our study reveals that the removal of 10 wt% of smallest particles from the feed results in an enhancement of the emission signal. This improvement is ascribed to a decreased quenching of the emission in larger particles. Our results reveal the impact of PSDs on the properties and the performance of an ensemble of multicomponent QDs and anticipate the high potential of controlling PSDs by well-developed post-processing.

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