Abstract
Quantum dots (QDs) of CdSe, PbS, and InSb semiconductors in a multigrain layer of a planar-end microstructure have been studied. A model of an ordered QDs arrangement in a micron gap of the structure and a current flow along the lines of their series-parallel arrangement are considered. At low voltages (less than 8 V), electron transport is determined by thermal and tunnel emission from QDs into the gap, while at high voltages it is determined by charge restriction in QDs according to the model of Coulomb blockade. A strong effect of radiation with IR and UV spectra on the current–voltage characteristics has been found.
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