Controllable Synthesis and Gas-Sensing Properties of Zinc Oxide Nanocrystals With Exposed Different Percentage of Facets

Boosting the performance of NO2 gas sensors based on n–n type mesoporous ZnO@In2O3 heterojunction nanowires: in situ conducting probe atomic force microscopic elucidation of room temperature local electron transport

“…Likewise, the (104) and (110) planes of In 2 O 3 terminated with In 3+ ions on the exposed polar planes are also able to grasp the oxygen from the atmosphere and further aid in physical or chemical adsorption of NO 2 molecules. 40 The ZnO (002) plane terminated with Zn 2+ ions and surface anchored In 2 O 3 nanoislands forms the heterojunction structure. The In 3+ terminated planes with the exposed facets of (104) and (110) of In 2 O 3 boost the adsorption kinetics of NO 2 molecules at the heterojunctions.…”

Controllable Evolution of Dual Defect Zni and VO Associate-Rich ZnO Nanodishes with (0001) Exposed Facet and Its Multiple Sensitization Effect for Ethanol Detection

“…Especially, gas sensors have been playing an irreplaceable role in detecting harmful gases and disease diagnoses . Thus, numerous materials have been employed and explored as sensor materials, such as ZnO, SnO 2 , WO 3 , In 2 O 3 , and so on . ZnO is one of the most popular materials because of its good stability and high electron mobility .…”

1D aligned, n–p and n–n type ZnO heterojunction nanofibers for NO2 sensors: exploration of conduction mechanism using in situ impedance spectroscopy

“…73-1809). 47,49 The HNFs exhibited nanograined morphology due to their intrinsic porosity and abundant surface area formed during the calcination process which could emboss n-ZnO/p-Bi 2 O 3 and n-ZnO/n-In 2 O 3 HNFs as efficient sensing materials with reduced operating temperature. The results indicated the existence of heterojunctions in the ZnO/Bi 2 O 3 and ZnO/In 2 O 3 HNFs at the interfaces.…”