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

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.