Electrical response of Sm2O3-doped SnO2 to C2H2 and effect of humidity interference |
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| Authors: | Qi Tong Xuejun Huitao Li Rui Yi |
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| Affiliation: | aState Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China;bKey Laboratory of Low Dimensional Materials & Application Technology, Ministry of Education, Xiangtan 411105, PR China |
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| Abstract: | Pure and Sm2O3-doped SnO2 are prepared through a sol–gel method and characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The sensor based on 6 wt% Sm2O3-doped SnO2 displays superior response at an operating temperature of 180 °C, and the response magnitude to 1000 ppm C2H2 can reach 63.8, which is 16.8 times larger than that of pure SnO2. This sensor also shows high sensitivity under various humidity conditions. These results make our product be a good candidate in fabricating C2H2 sensors. |
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| Keywords: | SnO2 Sm2O3 C2H2 Nanomaterials Humidity interference |
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