The fast-response ultraviolet (UV) photoelectric effect in ZrO2 single crystals with interdigitated electrodes has been investigated experimentally at room temperature. The photovoltage of ZrO2 single crystals exhibit...The fast-response ultraviolet (UV) photoelectric effect in ZrO2 single crystals with interdigitated electrodes has been investigated experimentally at room temperature. The photovoltage of ZrO2 single crystals exhibits a linear dependence on applied bias and light power density. The photocurrent responsivity to the UV light with a wavelength of 253.65 nm is 9.8 mA/W. For the photovoltaic pulse, a rise time of 501 ps and a full width at half maximum of 1.5 ns have been obtained, when the ZrO2 single crystal is illuminated by a 266 nm pulsed laser. These results indicate that the ZrO2 single crystal is a promising candidate for UV photodetectors.展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 10905049)the Fundamental Research Funds for the Central Universities (Grant No. 2010ZY50)Open Foundation of National Laboratory of Mineral Materials, China University of Geosciences (Beijing) and Open Foundation of Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences
文摘The fast-response ultraviolet (UV) photoelectric effect in ZrO2 single crystals with interdigitated electrodes has been investigated experimentally at room temperature. The photovoltage of ZrO2 single crystals exhibits a linear dependence on applied bias and light power density. The photocurrent responsivity to the UV light with a wavelength of 253.65 nm is 9.8 mA/W. For the photovoltaic pulse, a rise time of 501 ps and a full width at half maximum of 1.5 ns have been obtained, when the ZrO2 single crystal is illuminated by a 266 nm pulsed laser. These results indicate that the ZrO2 single crystal is a promising candidate for UV photodetectors.
