Formation of a heterojunction by electrophoretic deposition of CdTe/CdSe nanoparticles from an exhaustible source

Elisabeth Zillner, Jaison Kavalakkatt, Björn Eckhardt, Thomas Dittrich, Ahmed Ennaoui, Martha Lux-Steiner

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Fast and well controlled electrophoretic deposition of CdTe and CdSe nanoparticle (CdTe-np and CdSe-np) layers and nanoparticle layer systems from an exhaustible source has been demonstrated. Using a small volume of pyridine based nanoparticle suspensions with varying concentrations, these were completely drained of nanoparticles during deposition. Our proposed approach is well suited to a practical realization of engineering materials with different band gaps for various promising applications such as fabrication of nanodevices. The formation of a charge selective contact across the CdTe-np/CdSe-np heterojunction was investigated by surface photovoltage methods and evidence of the separation of charge carriers at a CdTe-/CdSe-np heterojunction in-between was demonstrated.

Original languageEnglish
Pages (from-to)5500-5503
Number of pages4
JournalThin Solid Films
Volume520
Issue number17
DOIs
Publication statusPublished - 30 Jun 2012
Externally publishedYes

Fingerprint

Heterojunctions
heterojunctions
Nanoparticles
nanoparticles
photovoltages
Charge carriers
Pyridine
charge carriers
pyridines
Suspensions
Energy gap
engineering
Fabrication
fabrication

Keywords

  • Electrophoretic deposition
  • Nanoparticle
  • Surface photovoltage

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Formation of a heterojunction by electrophoretic deposition of CdTe/CdSe nanoparticles from an exhaustible source. / Zillner, Elisabeth; Kavalakkatt, Jaison; Eckhardt, Björn; Dittrich, Thomas; Ennaoui, Ahmed; Lux-Steiner, Martha.

In: Thin Solid Films, Vol. 520, No. 17, 30.06.2012, p. 5500-5503.

Research output: Contribution to journalArticle

Zillner, Elisabeth ; Kavalakkatt, Jaison ; Eckhardt, Björn ; Dittrich, Thomas ; Ennaoui, Ahmed ; Lux-Steiner, Martha. / Formation of a heterojunction by electrophoretic deposition of CdTe/CdSe nanoparticles from an exhaustible source. In: Thin Solid Films. 2012 ; Vol. 520, No. 17. pp. 5500-5503.
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