Role of Metallic Oxides in Semiconducting Microwave Detectors and Superconductors

Autor: S D Chatterjee, T K Sengupta
Rok vydání: 1991
Předmět:
Zdroj: IETE Journal of Research. 37:398-400
ISSN: 0974-780X
0377-2063
DOI: 10.1080/03772063.1991.11436992
Popis: Early microwave detectors consisted of loose metal-metal contact of which at least one metal-surface was automatically oxidised under ordinary atmospheric conditions. Metal-excess oxides behave as n-type semiconductors and metal-deficient or oxygen excess oxides behave as p-type ones. In one of the typical microwave sensors a rather thick ZnO film was electrochemically deposited on mother Zn. Later a mechanically pressed point-metallic contact was made on it. Nonlinear I-V characteristics were obtained showing rectification properties. Some complex mixed metal oxides behave as warm superconductors.
Databáze: OpenAIRE