In2O3 nanowires for gas sensors: morphology and sensing characterisation

Disorder induced interface states and their influence on the Al/Ge nanowires Schottky devices

“…In a general way, these findings can also be extended to the interpretation of the sensing mechanism (involving exchange of charges through the nanowire's surface with different environments, for instance) usually observed in these structures. [18][19][20] Experimental data on electronic transport in Ge nanowires were also analysed using our theoretical approach, providing the opportunity to establish a quantitative understanding of the influence of surface states on nanowire electrical properties.…”

Hydrogen sensors made of undoped and Pt-doped SnO2 nanowires

“…Recently, it was reported that quasi-one-dimensional nanomaterials such as nanowires, nanobelts, and nanotubes showed high sensitivity, quick response, and enhanced ability to detect gases at low concentrations because of their high surface-to-volume ratio, single crystalline structure, and great surface activity [10,[13][14][15][16]. Of these nanomaterials, quasi-one-dimensional SnO 2 has been extensively studied.…”

Investigation of sensitivity and selectivity of ZnO thin film to volatile organic compounds

“…The differences between the results listed in Table 3 can be due to the different factors such as the growth or preparation method and conditions, substrate, thickness, and electrode which in turn affect the crystallinity, porosity, surface morphology, as well as sensing mechanism. In addition to pure ZnO, there are many reports on acetone vapor sensitivity of other metal oxide semiconductors such as WO 3 [22], a-Fe 2 O 3 [23], In 2 O 3 [24], SnO 2 [25], and Fe 2 O 4 [26] as well as doped-ZnO [18,27,28], and a summary of their results is listed in Table 4. From the results given in this work and Tables 3 and 4, it may be also deduced that ZnO is suitable to detect acetone vapor compared to the other metal oxide semiconductors.…”