1D aligned, n–p and n–n type ZnO heterojunction nanofibers for NO<sub>2</sub> sensors: exploration of conduction mechanism using <i>in situ</i> impedance spectroscopy
Ramakrishnan Vishnuraj, Mahaboobbatcha Aleem, Keerthi G. Nair, Biji Pullithadathil
Abstract
1D aligned n–p type ZnO/Bi 2 O 3 and n–n type ZnO/In 2 O 3 heterojunction nanofibers have been developed via coaxial electrospinning approach and its complex sensing mechanisms have been deduced using in situ AC impedance spectroscopic studies.
Topics & Concepts
HeterojunctionNanofiberDielectric spectroscopyMaterials scienceIn situElectrospinningElectrical impedanceCoaxialThermal conductionConductivitySpectroscopyOptoelectronicsNanotechnologyAnalytical Chemistry (journal)ElectrodeComposite materialChemistryElectrochemistryElectrical engineeringPhysical chemistryPhysicsPolymerChromatographyEngineeringQuantum mechanicsOrganic chemistryGas Sensing Nanomaterials and SensorsAdvanced Chemical Sensor TechnologiesAnalytical Chemistry and Sensors