Space-charge-limited currents through chromium-cadmium sulphide-chromium diodes

Srivastava, S. K. ; Sinha, A. P. B. (1970) Space-charge-limited currents through chromium-cadmium sulphide-chromium diodes Solid-State Electronics, 13 (1). pp. 57-60. ISSN 0038-1101

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One carrier space-charge-limited current is studied in Cr---CdS---Cr diodes or sandwiches prepared by vapour deposition technique. The ohmic contacts with CdS are made of evaporated chromium. The current voltage characteristics are measured by the slowly varying triangular pulses. The thickness of the CdS films are in the range of 0·2-0·5 μ as estimated by the weight difference method. It has been observed that at low voltages, the ohmic region is dominant whereas at higher voltages a v3/2/d5/2 dependence of current is found. A theoretical relationship between the voltage and the current density is obtained assumingE−1/2 dependence of mobility which is in agreement with the experimental results.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:49010
Deposited On:18 Jul 2011 09:46
Last Modified:18 Jul 2011 09:46

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