Performance of a diamond x-ray sensor fabricated with metal-less graphitic contacts
- Department of Physics, University of Surrey, Guildford Surrey GU2 7XH (United Kingdom)
We report the x-ray photocurrent response of a coplanar chemical vapor deposition diamond detector fabricated using a metal-less graphitic ohmic contact. Ion implantation of 70 keV boron ions to a dose of 2x10{sup 16} cm{sup -2} was performed through a patterned photoresist to produce a coplanar graphitic contact structure. The device photocurrent showed a fast response to pulsed x-ray irradiation, and showed no evidence of photocurrent persistence that is observed in devices fabricated using metal Schottky contacts. The graphite-contact device also showed no extrinsic photoconductivity when illuminated with white light.
- OSTI ID:
- 20709745
- Journal Information:
- Applied Physics Letters, Vol. 87, Issue 9; Other Information: DOI: 10.1063/1.2035885; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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