Frequency stable dielectric constant with reduced dielectric loss of one-dimensional ZnO–ZnS heterostructures

Abstract

ZnO–ZnS heterostructure is developed which shows frequency stable dielectric response at ≥103 Hz due to coupling of the bare charges in the form of overlapping large polaron and Zn2+–VO dipoles present at ZnO–ZnS heterostructure interface.

Development of MoS2-ZnO heterostructures: an efficient bifunctional catalyst for the detection of glucose and degradation of toxic organic dyes

“…The third binding energy peak at 533.6 eV is characteristic of oxygen vacancies in ZnO. 60 UV-vis diffuse reflectance spectroscopy (DRS) was used to investigate the photoabsorption tendency of synthesized pristine MoS 2 , ZnO and the MoS 2 -ZnO heterostructure (Fig. S3a-c, ESI †).…”

Photocatalytic Degradation of Rhodamine B Dye and Hydrogen Evolution by Hydrothermally Synthesized NaBH4—Spiked ZnS Nanostructures

“…Since the chemical shifts between Zn 2p spectra associated with different Zn electronic environments are characteristically on the order of 100 meV, even when considering disparate oxidation states of Zn ( Biesinger et al, 2010 ), the comparatively large separation of the Zn 2p doublets suggests that differential charging occurred within the NaBH 4 -synthesized samples, in turn indicating that they contained a mixture of materials with differing electrical conductivities. It is possible, for instance, that the inclusion of NaBH 4 during ZnS synthesis yielded discrete particles of ZnO, which is considerably more conductive than ZnS ( Zafar et al, 2021 ). One should note that as a highly surface-sensitive technique, XPS cannot detect species at a distance greater than 10 nm from the sample surface, in contrast to bulk characterisation procedures such as XRD.…”