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Observation of negative differential conductance in a reverse-biased Ni/Ge Schottky diode

Husain, Muhammad, Li, Xiaoli V. and de Groot, Cornelis H. (2009) Observation of negative differential conductance in a reverse-biased Ni/Ge Schottky diode IEEE Electron Device Letters, 30, (9), pp. 966-968. (doi:10.1109/LED.2009.2025673).

Record type: Article


We report the experimental observation of negative differential conductance in a Ni/Ge Schottky diode. With the aid of theoretical models and numerical simulation we show that, at reverse bias, electons tunnel into the high electric field of the depletion region. This scatters the electrons into the upper valley of the Ge conduction band, which has a lower mobility. The observed negative differential conductance is hence attributed to the transferred-electron effect. This shows that Schottky contacts can be used to create hot electrons for transferred-electron devices.

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Published date: September 2009
Organisations: Nanoelectronics and Nanotechnology


Local EPrints ID: 267551
ISSN: 0741-3106
PURE UUID: 0e94ec96-0ee2-4c00-bf24-920d138a3a18
ORCID for Cornelis H. de Groot: ORCID iD

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Date deposited: 11 Jun 2009 15:02
Last modified: 18 Jul 2017 07:03

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Author: Muhammad Husain
Author: Xiaoli V. Li

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