Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 105, Issue 2, Pages 449-453Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2004.07.001
Keywords
SnO2CuO; nanoribbons; gas sensors
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SnO2 nanoribbons were synthesized by direct oxidization of tin powders at 810 degrees C. Then highly sensitive and selective CuO modified SnO2 sensors to H,S based on SnO, nanoribbons were fabricated successfully. The sensitivity of CuO modified SnO, nanoribbons sensor is as high as 18.000 and the response time is 15 s at room temperature though the content of H2S is just 3 ppm. CuO-SnO2 nanoribbons sensor shows switch-like response to H,S gas, which is helpful for the design of new kind of nanodevices. (c) 2004 Elsevier B.V. All rights reserved.
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