A room temperature ethanol sensor made from p-type Sb-doped SnO2 nanowires.
A p-type ethanol sensor with a response time of approximately 8.3 s at room temperature was produced by SnO(2):Sb nanowires. The electrical properties of p-type SnO(2) nanowires are stable with a hole concentration of 1.544 x 10(17) cm(-3) and a field-effect mobility of 22 cm(2) V(-2) S(-1). X-ray photoelectron spectroscopy (XPS) and Hall measurement revealed that as-synthesized nanowires exhibit p-type behavior. A comprehensive investigation of the p-type sensing mechanism is reported.
Wu
Jyh Ming
JM
Department of Materials Science and Engineering, Feng Chia University, Seatwen, Taichung, Taiwan. jmwu@fcu.edu.tw
D000965:Antimony / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D000431:Ethanol / Q000032:analysis*; D053770:Nanowires / Q000737:chemistry* / Q000648:ultrastructure; D056951:Photoelectron Spectroscopy; D012680:Sensitivity and Specificity; D013696:Temperature; D017971:Tin Compounds / Q000737:chemistry*
D017971:Tin Compounds; D000431:Ethanol; D000965:Antimony; C045358:stannic oxide