Electro-optical response of a single-crystal diamond ultraviolet photoconductor in transverse configuration

de Sio, A.; Achard, J.; Tallaire, A.; Sussmann, R. S.; Collins, A. T.; Silva, F.; Pace, E.
May 2005
Applied Physics Letters;5/23/2005, Vol. 86 Issue 21, p213504
Academic Journal
Diamond has been identified as a very promising material for X and ultraviolet sensing. In this Letter, a photoconductive device based on a freestanding homoepitaxial chemically vapor deposition (CVD) single-crystal diamond 500 μm thick has been tested. Photoconductive measurements in coplanar and transverse configurations have been performed to characterize the device sensitivity in the 140–250 nm spectral range. Very high sensitivity values were achieved in both configurations. The sensitivity in the transverse configuration is at least 300 times higher than in the coplanar configuration.


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