Variable range hopping conduction in semiconductor nanocrystal solids

Abstract

The temperature and electrical field dependent conductivity of n-type CdSe nanocrystal thin films is investigated. In the low electrical field regime, the conductivity follows G ~ exp(-(T*/T)^0.5) in the temperature range 10K<T<120K. At high electrical field, the conductivity is strongly field dependent. At 4K, the conductance increases by eight orders of magnitude over one decade of bias. At very high field, conductivity is temperature-independent with G ~ exp(-(E*/E)^0.5). The complete behavior is very well described by variable range hopping with Coulomb gap.

Submitted to Physical Review Letters on Dec. 22, 2003

References in corpus (2)

• Electronic Transport in Metal Nanocrystal Arrays: The Effect of Structural Disorder on Scaling Behavior
• Electronic transport in films of colloidal CdSe nanocrystals

Cited by in corpus (30)

• Granular Electronic Systems
• Efros-Shklovskii variable range hopping in reduced graphene oxide sheets of varying carbon sp2 fraction
• Multiple Cotunneling in Large Quantum Dot Arrays
• Sequential tunneling and inelastic cotunneling in nanoparticle arrays
• Electronic transport in quasi-one-dimensional arrays of gold nanocrystals
• Density of States and Critical Behavior of the Coulomb Glass
• Carrier Transport in Films of Alkyl-Ligand-Terminated Silicon Nanocrystals
• Transport properties of chemically synthesized polypyrrole thin films
• Nonlinearity exponents in lightly doped Conducting Polymers
• Electrical Properties of Conductive Ge Nanocrystal Thin Films Fabricated by Low Temperature In-situ Growth
• Efros-Shklovskii variable range hopping and nonlinear transport in 1T/1T${}^{\prime }$-MoS${}_2$
• Transport properties of semiconducting nanocrystal arrays at low temperatures
• Probing 2D Black Phosphorus by Quantum Capacitance Measurements
• Electronic correlations and disorder in transport through one-dimensional nanoparticle arrays
• PyCDFT: A Python package for constrained density functional theory
• Nonlinear conductivity of two-dimensional Coulomb glasses
• Anisotropic three-dimensional weak localization in ultrananocrystalline diamond films with nitrogen inclusions
• Conductance of partially disordered graphene: Crossover from temperature-dependent to field-dependent variable-range hopping
• Magnetoresistance oscillations in vertical junctions of 2D antiferromagnetic semiconductor CrPS${}_4$
• Magnetic-field-induced nonlinear transport in HfTe5
• Dielectric quantification of conductivity limitations due to nanofiller size in conductive powders and nanocomposites
• Cotunnelling and polaronic effect in granular systems
• Nature of magnetism and transport in BxCyNz thin films: The intriguing role of nitrogen defects in the electronic structure
• Impurity band conduction in group-IV ferromagnetic semiconductor Ge1-xFex with nanoscale fluctuations in Fe concentration
• Electronic transport mechanisms in a thin crystal of the Kitaev candidate $\alpha$-RuCl${}_3$ probed through guarded high impedance measurements
• A probabilistic model of the electron transport in films of PbSe nanocrystals arranged in a cubic lattice
• Nonlinear transport of Wigner solid phase surrounding the two-flux composite fermion liquid
• Electron transport in disordered insulating lattice under nonlinear electric field
• Polarization transitions in Quantum Dot Quantum Well Arrays
• Liquid phase mass production of air-stable black phosphorus/phospholipids nanocomposite with ultralow tunneling barrier