Kim, Ki-Won Cho, Pyeong-Seok Kim, Sun-Jung Lee, Jong-Heun Kang, Chong-Yun Kim, Jin-Sang Yoon, Seok-Jin 2024-01-21T01:04:26Z 2024-01-21T01:04:26Z 2021-09-02 2007-04-10 0925-4005 https://pubs.kist.re.kr/handle/201004/134457 Sensing materials for selective detection of C2H5OH were designed using combinatorial solution deposition of SnO2-ZnO thin films. The SnO2-ZnO composite sensor prepared by alternate deposition of 10 droplets of SnO2 and ZnO sols (S50Z50 sensor) showed a high response to 200ppm C2H5OH (S(ethanol) = R-a/R-g = 4.69, R-a: resistance in air, R,: resistance in gas) at 300 degrees C, while the gas responses to 100 ppm C3H8, 100 ppm CO, 200 ppm H-2, and 5 ppm NO2 ranged from 1.11 to 1.19. The S(ethanol) value of the S50Z50 sensor was twice that to 200 ppm CH3COCH3 (S(acetone)). In contrast, the S(ethanol) and S(acetone) of pure SnO2 and ZnO thin films were similar to each other. The heterostructure between SnO2 and ZnO was suggested as one of the probable reasons for the successful discrimination between C2H5OH and CH3COCH3. (c) 2006 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA TIN OXIDE SENSORS SENSING PROPERTIES TEMPERATURE MODULATION ORGANIC VAPORS ALCOHOL SENSOR ETHANOL SENSITIVITY CO IMPROVEMENT LIBRARIES The selective detection of C2H5OH using SnO2-ZnO thin film gas sensors prepared by combinatorial solution deposition Article 10.1016/j.snb.2006.08.028 1 SENSORS AND ACTUATORS B-CHEMICAL, v.123, no.1, pp.318 - 324 SENSORS AND ACTUATORS B-CHEMICAL 123 1 318 324 scie scopus 000246171200047 2-s2.0-33947613044 Chemistry, Analytical Electrochemistry Instruments & Instrumentation Chemistry Electrochemistry Instruments & Instrumentation Article TIN OXIDE SENSORS SENSING PROPERTIES TEMPERATURE MODULATION ORGANIC VAPORS ALCOHOL SENSOR ETHANOL SENSITIVITY CO IMPROVEMENT LIBRARIES SnO2 ZnO combinatorial solution deposition gas sensor C2H5OH