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An SiC optoinjected charge-coupled device with buried channels(BCCD)is designed for the detection of ultraviolet light(UV),and its feasibility is studied by means of Silvaco numerical simulation software.Charge storageandtransfercharacteristicsoftheBCCDcanbeconformedbysimulationresults.Theburiedchanneldesign is a key point to realize the high sensitivity of the device.The channel mobility of electrons in the 6H-SiC BCCD can be changed from 47 to 200 cm2/(V s)when the channel is replaced from surface to the subsurface of 0.2 m.With the optimized device parameters,the density of stored electrons can reach up to 1.062 1011cm2and the number of stored electrons is up to 1.826 108for UV light with wavelengths from 200 to 380 nm and an intensity of 0.1 W/cm2under a driving voltage of 15 V at room temperature.
An SiC optoinized charge-coupled device with buried channels (BCCD) is designed for the detection of ultraviolet light (UV), and its feasibility is studied by means of Silvaco numerical simulation software. Charge storage and transfer characterization of the BCCD can be formed by a charge point of the buried channel design is a key point to realize the high sensitivity of the device. The channel mobility of electrons in the 6H-SiC BCCD can be changed from 47 to 200 cm2 / (V s) when the channel is replaced from surface to the subsurface of 0.2 m .With the optimized device parameters, the density of stored electrons can reach up to 1.062 1011 cm2 and the number of stored electrons is up to 1.826 108 for UV light with wavelengths from 200 to 380 nm and an intensity of 0.1 W / cm2under a driving voltage of 15 V at room temperature.