NiO doped SnO₂p–n heterojunction microspheres: preparation, characterisation and CO sensing properties

E-beam evaporated hydrophobic metal oxide thin films as carrier transport materials for large scale perovskite solar cells

“…Thin metal-oxide films are essential in developing microelectronic and optoelectronic devices where they could be integrated as buffer layers to control the charge carrier transportation [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. This is due to their suitable electronic, structural and optical properties, where their microstructure and morphology play central and critical roles [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. As studied such metal-oxide films have been practically developed to support nanocomposites cathode in lithiumsulphur battery, nanostructured hybrid solar cells, photocatalytic applications, gas sensors and UV photodetectors.…”

“…In general, inorganic n-type or p-type oxide materials grown at low temperature inside physical vapour deposition process tools offer the advantages of reducing device fabrication cost and enhancing device stability through resistance to moisture. Among inorganic carrier transport materials, few metal oxide materials have demonstrated the capabilities of fulfiling operational device requirements, this includes titanium oxide (TiO x ) [1,2,3], tin oxide (SnO x ) [9,10,11,12,13], molybdenum oxide (MoO x ) [6] and nickel oxide (NiO) [7,8]. Indeed, high carrier mobility and a pristine electrical interface with the absorbing layer are critical requirements to minimise carrier recombination of the device.…”

Hydrothermal Synthesis of Flake-Flower NiO and Its Gas Sensing Performance to CO

“…Dissolved Gas in Oil Analysis (DGA) is one of the most convenient and effective methods to judge the early latent faults of oil immersed high-voltage electrical equipment at present (Gui et al, 2019;Yang et al, 2019a;Zhou et al, 2019;Wang et al, 2020;Wei et al, 2020a). As one of the most important fault characteristic gases of oil immersed transformer, carbon monoxide (CO), has received considerable attention for its application to provide vital help for judging the operation state of transformer (Zhou et al, 2015(Zhou et al, , 2018aYang et al, 2019b). In this respect, to detect and analyze the dissolved gases, many strategies have been proposed, for instance, gas chromatography, photoacoustic spectrometry and gas sensor (Qu et al, 2016;Liu et al, 2017;Wei et al, 2019b).…”

Electrospun ZnO–SnO2 Composite Nanofibers and Enhanced Sensing Properties to SF6 Decomposition Byproduct H2S

“…In particular, the 1D nanostructures such as nanofibers (Jiang et al, 2016), nanorods (Zhang et al, 2014; Zou et al, 2016), and nanotubes (Kong et al, 2015) have been extensively applied to improve gas sensing properties (Li T. M. et al, 2015; Long et al, 2018). Besides, many studies indicated that the selectivity and other important sensing parameters of semiconductor metal oxide nanomaterials can be enhanced by compositing semiconductor metal oxides (Zhou et al, 2015; Tomer and Duhan, 2016; Wang et al, 2017). Jae-Hun Kim et al systematically investigated the sensing applications of xSnO 2 -(1-x)Co 3 O 4 composite nanofibers and reported that the 0.5SnO 2 -0.5Co 3 O 4 sensor exhibited the most outstanding sensing characteristics (Kim et al, 2017).…”