Impact of the Percolation Effect on the Temperature Dependences of the Capacitance–Voltage Characteristics of Heterostructures Based on Composite Layers of Silicon and Gold Nanoparticles
- Authors: Sobolev M.M.1, Yavsin D.A.1, Gurevich S.A.1
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Affiliations:
- Ioffe Institute
- Issue: Vol 53, No 10 (2019)
- Pages: 1393-1397
- Section: Microcrystalline, Nanocrystalline, Porous, and Composite Semiconductors
- URL: https://journals.rcsi.science/1063-7826/article/view/207241
- DOI: https://doi.org/10.1134/S1063782619100208
- ID: 207241
Cite item
Abstract
The temperature dependences of the capacitance–voltage characteristics and deep-level spectra of a Au–n-Si:Au–Si–p-Si heterostructure based on a composite layer of Au and Si nanoparticles are investigated. The structure manifests the properties of a transistor connected to a circuit with a common emitter with a disconnected base and an emitter Schottky barrier between the Au point contact and the n–(Si:Au) layer. Nanoparticles in this layer form finite clusters with hopping conductivity; herewith, charge accumulation is observed in the region of the Au point contact. The system at a measurement temperature below 180 K transitions from the finite-cluster phase to the infinite-cluster phase due to the percolation effect. This phase manifests metallic properties in the lateral plane of the heterostructure, which transforms into a p–n diode.
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About the authors
M. M. Sobolev
Ioffe Institute
Author for correspondence.
Email: m.sobolev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
D. A. Yavsin
Ioffe Institute
Email: m.sobolev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
S. A. Gurevich
Ioffe Institute
Email: m.sobolev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021