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Determination of the Electronic Energy Levels of Colloidal Nanocrystals using Field‐Effect Transistors and Ab‐Initio Calculations
Author(s) -
Bisri Satria Zulkarnaen,
Degoli Elena,
Spallanzani Nicola,
Krishnan Gopi,
Kooi Bart Jan,
Ghica Corneliu,
Yarema Maksym,
Heiss Wolfgang,
Pulci Olivia,
Ossicini Stefano,
Loi Maria Antonietta
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201400660
Subject(s) - nanocrystal , materials science , ab initio , superlattice , quantum dot , heterojunction , colloid , field effect transistor , nanotechnology , transistor , ab initio quantum chemistry methods , electronic structure , chemical physics , condensed matter physics , optoelectronics , chemistry , molecule , quantum mechanics , physics , voltage
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.