Abstract:We had designed a clamping device to study lateral photovoltaic effect (LPE) in Ni-SiO2-Si structure with bias due to the appropriate barrier height, the LPE have a prominent sensitivity and linearity with 532 nm wavelength laser. The transient response time is 450 μs and the relaxation time is 2250 μs in Ni-SiO2-Si structure without bias. The LPE sensitivity have a significant improvement with bias. The transient response time is 6 μs and the relaxion time is 47 μs with -7 V bias. Not only improve the LPE sensitivity, but also increase response speed with bias. The research shows that the Schottky barrier structure can improve the sensitivity and linearity of LPE with bias effectively and thus it can be used in position sensitive sensors.