Rare earth nickel-based perovskite oxide thermistor material for infrared detection
A perovskite oxide and thermistor technology, applied in nickel compounds, thermometers with direct heat-sensitive electric/magnetic elements, measuring heat, etc., can solve the chemical composition and crystal structure complexity of vanadium oxide, etc. question
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Embodiment 1
[0048] use has figure 1 The temperature change relationship of the resistance is shown, such as figure 2 The samarium nickel oxide perovskite oxide (SmNiO 3 ) material as thermistor material, according to Figure 5 The device structure shown is fabricated as an infrared detection device and is adiabatically encapsulated in a germanium window. At room temperature, in SmNiO 3 Pass a current through the thermistor material and read two voltage values. When infrared radiation with a wavelength of 3, 4, and 5 microns is used, the infrared rays are focused and irradiated to SmNiO 3 When the thermistor material is used, due to the local temperature rise of the infrared absorption point, the V R Change 3%, after turning off the IR incident light, V R Return to the original value, so as to realize room temperature detection of infrared signals with a wavelength of 3-5 microns.
Embodiment 2
[0050] use has image 3 The temperature change relationship of the resistance is shown, such as Figure 4 NdNiO perovskite oxide (NdNiO 3 ) material as thermistor material, according to Figure 5 The device structure shown is fabricated as an infrared detection device and is adiabatically encapsulated in a germanium window. Use liquid nitrogen to lower the temperature to 150K, in NdNiO 3 Pass a current through the thermistor material and read two voltage values. When infrared radiation with a wavelength of 3, 4, and 5 microns is used, the infrared rays are focused and irradiated to SmNiO 3 When the thermistor material is used, due to the local temperature rise of the infrared absorption point, the V R Change 2%, after turning off the IR incident light, V R Return to the original value, so as to realize the low-temperature detection of infrared signals.
Embodiment 3
[0052] Europium nickel oxide perovskite oxide (EuNiO 3 ) material as thermistor material, according to Figure 5 The device structure shown is fabricated as an infrared detection device and is adiabatically encapsulated in a germanium window. At room temperature, in EuNiO 3Pass a current through the thermistor material and read two voltage values. When the infrared radiation with a wavelength of 3-5 microns is used to focus and irradiate the EuNiO 3 When the thermistor material is used, due to the local temperature rise of the infrared absorption point, the V R Change 4%, after turning off the IR incident light, V R Return to the original value, so as to realize the room temperature detection of the infrared signal.
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