Electrical and optical properties of colloidal quantum dots and quantum dot networks : Role of surface states and using biomolecular links in network assembly

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Author(s)

  • Michael A. Stroscio
  • Mitra Dutta
  • Dinakar Ramadurai
  • Yang Li
  • Dimitri Alexson
  • Babak Kohanpour
  • Akil Sethuraman
  • Vikas Saini
  • Amit Raichura

Detail(s)

Original languageEnglish
Title of host publicationProceedings - Electrochemical Society
Pages39-48
VolumePV 2004-13
Publication statusPublished - 2005
Externally publishedYes

Publication series

Name
VolumePV 2004-13

Conference

TitleNanoscale Devices, Materials, and Biological Systems: Fundamental and Applications - Proceedings of the International Symposium
PlaceUnited States
CityHonolulu, HI
Period3 - 8 October 2004

Abstract

The objectives of this paper are to determine the role of surface states in determining the electrical and optical properties of semiconductor quantum dots in colloidal suspensions, and to use biomolecules to facilitate the chemically-directed assembly of quantum dots networks with densities approximating 10 17 cm -3. Absorption spectra and photoluminescence (PL) spectra of colloidal cadmium sulfide (CdS) quantum dots are analyzed to investigate the role of surface states in determining the electrical and optical properties of these semiconductor quantum dots. In addition, this work demonstrates the utility of using glycine-glycine-glycine- cysteine (GGGC) peptides and crossing-linking chemical reactions to achieve integrated networks of ZnS-coated CdSe quantum dots and CdS quantum dots.

Citation Format(s)

Electrical and optical properties of colloidal quantum dots and quantum dot networks : Role of surface states and using biomolecular links in network assembly. / Stroscio, Michael A.; Dutta, Mitra; Ramadurai, Dinakar; Shi, Peng; Li, Yang; Alexson, Dimitri; Kohanpour, Babak; Sethuraman, Akil; Saini, Vikas; Raichura, Amit.

Proceedings - Electrochemical Society. Vol. PV 2004-13 2005. p. 39-48.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review