Determination of the Electronic Energy Levels of Colloidal Nanocrystals using Field-Effect Transistors and Ab-Initio Calculations

Satria Zulkarnaen Bisri, Elena Degoli, Nicola Spallanzani, Gopi Krishnan, Bart Jan Kooi, Corneliu Ghica, Maksym Yarema, Wolfgang Heiss, Olivia Pulci, Stefano Ossicini*, Maria Antonietta Loi

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

27 Citations (Scopus)

Abstract

Colloidal nanocrystals electronic energy levels are determined by strong size-dependent quantum confinement. Understanding the configuration of the energy levels of nanocrystal superlattices is vital in order to use them in heterostructures with other materials. A powerful method is reported to determine the energy levels of PbS nanocrystal assemblies by combining the utilization of electric-double-layer-gated transistors and advanced ab-initio theory.

Original languageEnglish
Pages (from-to)5639-5645
Number of pages7
JournalAdvanced materials
Volume26
Issue number32
DOIs
Publication statusPublished - 27-Aug-2014

Keywords

  • PBS QUANTUM DOTS
  • THIN-FILM TRANSISTORS
  • SOLAR-CELLS
  • CARRIER MULTIPLICATION
  • CYCLIC VOLTAMMETRY
  • CDSE NANOCRYSTALS
  • SI NANOCRYSTALS
  • PHOTOVOLTAICS
  • SPECTROSCOPY
  • DENSITY

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