期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 216, 期 -, 页码 78-83出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2014.05.012
关键词
p-PbS/n-CdS; Chemical route; Nano-heterojunction; Room temperature LPG sensor
资金
- Council of Scientific & Industrial Research (CSIR), Govt. of India [4092/NS-EMRII]
Room temperature chemical method was used to surface coat PbS nanoparticles onto CdS nanowires to get high surface area nano-heterojunction. This high surface architecture was exposed to sense liquefied petroleum gas (LPG) at room temperature (27 degrees C) which is an advantage to adsorb and de-adsorb LPG molecules easily by penetrating from top to bottom. At room temperature, the formed nano-heterojunction exhibited gas response more than 60% upon 1200 ppm exposure to of LPG with faster response and recovery time as 120 and 105 s, respectively. The formed device showed stable response of 93% for 10 days. (C) 2014 Elsevier By. All rights reserved.
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