Tunable optical properties of colloidal quantum dots in electrolytic environments

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • D. Ramadurai
  • B. Kohanpour
  • D. Alexson
  • A. Sethuraman
  • Y. Li
  • V. Saini
  • M. Dutta
  • M. A. Stroscio

Detail(s)

Original languageEnglish
Pages (from-to)189-192
Journal / PublicationIEE Proceedings Nanobiotechnology
Volume151
Issue number6
Online published2 Dec 2004
Publication statusPublished - Dec 2004
Externally publishedYes

Abstract

The absorption spectra of colloidal cadmium sulfide quantum dots in electrolytic solutions are found to manifest a shift in the absorption threshold as the concentration of the electrolyte is varied. These results are consistent with a shift in the absorption threshold that would be caused by electrolytic screening of the field caused by the intrinsic spontaneous polarisation of these würtzite structured quantum dots. These electrolyte-dependent absorption properties provide a potential means of gaining insights on the variable extracellural and intracellular electrolytic concentrations that are present in biological systems.

Citation Format(s)

Tunable optical properties of colloidal quantum dots in electrolytic environments. / Ramadurai, D.; Kohanpour, B.; Alexson, D.; Shi, P.; Sethuraman, A.; Li, Y.; Saini, V.; Dutta, M.; Stroscio, M. A.

In: IEE Proceedings Nanobiotechnology, Vol. 151, No. 6, 12.2004, p. 189-192.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review