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

Autor: Corneliu Ghica, Bart J. Kooi, Olivia Pulci, Wolfgang Heiss, Nicola Spallanzani, Maksym Yarema, Elena Degoli, Satria Zulkarnaen Bisri, Maria Antonietta Loi, Stefano Ossicini, Gopi Krishnan
Přispěvatelé: Photophysics and OptoElectronics, Nanostructured Materials and Interfaces
Rok vydání: 2014
Předmět:
field-effect transistors
colloidal nanocrystals
PbS
SOLAR-CELLS
Materials science
Superlattice
Ab initio
02 engineering and technology
010402 general chemistry
01 natural sciences
7. Clean energy
Settore FIS/03 - Fisica della Materia
Condensed Matter::Materials Science
PHOTOVOLTAICS
Ab initio quantum chemistry methods
CARRIER MULTIPLICATION
Physics::Atomic and Molecular Clusters
General Materials Science
SPECTROSCOPY
business.industry
Mechanical Engineering
Heterojunction
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
0104 chemical sciences
CDSE NANOCRYSTALS
Multiple exciton generation
PBS QUANTUM DOTS
Nanocrystal
Mechanics of Materials
Quantum dot
DENSITY
CYCLIC VOLTAMMETRY
THIN-FILM TRANSISTORS
Optoelectronics
Field-effect transistor
SI NANOCRYSTALS
0210 nano-technology
business
Zdroj: Advanced materials, 26(32), 5639-5645. WILEY-V C H VERLAG GMBH
Advanced Materials
ISSN: 0935-9648
DOI: 10.1002/adma.201400660
Popis: 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.
Databáze: OpenAIRE
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