Current fluctuations in chain of nanoparticles

Autor: J. Parisi, L. V. Govor, Gottfried H. Bauer, T. Lüdtke, Rolf J. Haug
Rok vydání: 2011
Předmět:
Zdroj: Physics Letters A. 375:4041-4044
ISSN: 0375-9601
Popis: We have fabricated and analyzed devices where an electrode gap was bridged by a chain of citrate stabilized gold particles. The current–voltage characteristic I ∼ ( V − V t ) ζ with voltage threshold V t ≈ 0 and scaling exponent ζ = 0.91 is attributed to charge transport in a one-dimensional path. We observe current fluctuations in the frequency range 3–100 mHz as function of time as a result of conformational changes in the citrate molecules induced by charge transfer across the molecules.
Databáze: OpenAIRE