J. Semicond. > 2011, Volume 32 > Issue 3 > 034005

SEMICONDUCTOR DEVICES

GaN-based MSM photovoltaic ultraviolet detector structure modeling and its simulation

Chen Yiren, Song Hang, Li Dabing, Sun Xiaojuan, Li Zhiming, Jiang Hong and Miao Guoqing

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DOI: 10.1088/1674-4926/32/3/034005

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Abstract: Based on the principles of metal–semiconductor–metal Schottky barrier photodetectors (MSM-PD), using the carrier rate equations, the circuit simulation model of a GaN-based MSM photovoltaic ultraviolet detector is constructed through an appropriately equivalent process. By using the Pspice analytical function of Cadence soft on the model, the relationship between the photocurrent and the terminal voltage under different UV light powers is analyzed. The result shows that under the given UV power, the photocurrent increases and tends to become saturated gradually as the terminal voltage of the device increases, and that under different UV powers, the photocurrent increases with increasing incident power. Then the analysis of the relationship between the photocurrent and the terminal voltage under the different ratios of interdigital electrode space and width is carried out when the UV power is given. The results show that when the ratio of interdigital electrode space and width (L/W) equals 1, the photocurrent tends to be at a maximum.

Key words: MSM structuresimulationequivalent circuitultraviolet detector

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    Received: 18 August 2015 Revised: 20 October 2010 Online: Published: 01 March 2011

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      Chen Yiren, Song Hang, Li Dabing, Sun Xiaojuan, Li Zhiming, Jiang Hong, Miao Guoqing. GaN-based MSM photovoltaic ultraviolet detector structure modeling and its simulation[J]. Journal of Semiconductors, 2011, 32(3): 034005. doi: 10.1088/1674-4926/32/3/034005 ****Chen Y R, Song H, Li D B, Sun X J, Li Z M, Jiang H, Miao G Q. GaN-based MSM photovoltaic ultraviolet detector structure modeling and its simulation[J]. J. Semicond., 2011, 32(3): 034005. doi: 10.1088/1674-4926/32/3/034005.
      Citation:
      Chen Yiren, Song Hang, Li Dabing, Sun Xiaojuan, Li Zhiming, Jiang Hong, Miao Guoqing. GaN-based MSM photovoltaic ultraviolet detector structure modeling and its simulation[J]. Journal of Semiconductors, 2011, 32(3): 034005. doi: 10.1088/1674-4926/32/3/034005 ****
      Chen Y R, Song H, Li D B, Sun X J, Li Z M, Jiang H, Miao G Q. GaN-based MSM photovoltaic ultraviolet detector structure modeling and its simulation[J]. J. Semicond., 2011, 32(3): 034005. doi: 10.1088/1674-4926/32/3/034005.

      GaN-based MSM photovoltaic ultraviolet detector structure modeling and its simulation

      DOI: 10.1088/1674-4926/32/3/034005
      • Received Date: 2015-08-18
      • Accepted Date: 2010-08-26
      • Revised Date: 2010-10-20
      • Published Date: 2011-02-23

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