Experiment and Simulation Analysis of MSM Photodetector Based on Cubic Boron Nitride Single Crystals.

The cubic boron nitride (cBN) single crystals present a higher expectation for deep ultraviolet (DUV) detectors. Simulations have been carried out using Synopsys TCAD to improve the performance of detectors. The light and dark current were observed by changing the parameters such as electrode spacing, doping concentration. The detector has the maximum response with the doping concentration of 10¹³ cm⁻³. The light-to-dark current is up to about 60 with an electrode width and spacing of 15 µm. The photocurrent was measured based on the prototype device. [ABSTRACT FROM AUTHOR]