Indium oxide quasi-monodimensional low temperature gas sensor

Indium oxide octahedrons based on sol–gel process enhance room temperature gas sensing performance

“…Therefore, exploring effective methods to control the morphologies of nanocrystals and thus to tune their properties have become an attractive research direction in nanomaterial science and technology. For In 2 O 3 , besides the above mentioned low dimensional nanostructures, In 2 O 3 nanocrystals with regular octahedral shape are also one kind of low dimensional nanomaterial, which attracted much attention in recent years due to their abundant sharp edges and tips as well as the specific crystallographic planes exposed and are very promising in advanced applications like field-emission [5,9], gas-sensing [10,11] and optical resonators [12]. Up to now, there are a few reports associated with the growth of In 2 O 3 octahedrons, which are mainly based on the chemical vapor deposition (CVD) technique.…”

Low temperature synthesis of hexagonal ZnO nanorods and their hydrogen sensing properties

“…Metal-oxide nanostructures have attracted considerable attention due to their small dimensions, low cost, and high compatibility compared to Si-based microelectronics [1][2][3][4][5]. Among them, ZnO is an interesting chemically and thermally stable n-type semiconductor with a large exciton binding energy of 60 meV and large band gap energy of 3.37 eV at room temperature.…”

Synthesis, characterization and gas sensing properties of flowerlike In2O3 composed of microrods

“…In 2 O 3 is an important n-type semiconductor materials with a wide band gap (E g = 3.6 eV) [1], which make it promising candidate for the fabrication of solar cells, UV lasers, and detectors [2] as well as the gas-sensors for NH 3 [3], HCHO [4], CO [5], H 2 [6], H 2 S [7], O 3 [8], CO 2 [9], Cl 2 [10] and NO 2 [11,12] gases. Trimethylamine (TMA) is one of the most important organic amines produced in the process of metabolism.…”