Optical and Electrical Properties of (002)-Oriented ZnO Films Prepared on Amorphous Substrates by Sol-Gel Spin-Coating

Abstract

Zinc oxide (ZnO) films were prepared on amorphous quartz substrates by sol-gel spin-coating using Zn(CH 3 COO) 2 •2H 2 O precursor. Isopropanol, ethanol and 2-methoxyethanol were used as solvents. The film drying temperature was kept constant at 200 ºC and the annealing temperature was varied from 400 to 800 ºC. Highly transparent and (002)-oriented hexagonal wurtzite-type ZnO films were obtained using isopropanol solvent. The ZnO films prepared at T anneal = 600 ºC showed the highest (002) preferential orientation, however it was not the significant feature to achieve low resistivity. The uniform and (002)-oriented ZnO films prepared at T anneal = 400 ºC display the highest transmittance (>93% in the visible region) and the lowest resistivity (7.1 Ω•cm).

NiO–ZnO Nanoheterojunction Networks for Room‐Temperature Volatile Organic Compounds Sensing

“…The TEM images shows that the NiO–ZnO nanoparticles are quasispherical in shape with primary particles of ≈20 nm agglomerated in larger fractal structures (Figure a). Furthermore, their high‐resolution TEM (HRTEM) images reveal the crystalline features of ZnO with a lattice spacing of ≈0.26 nm (Figure b), which is consistent with the (002) plane of ZnO . The selected area electron diffraction (SAED) patterns of these particles also verify the crystallinity of ZnO (inset, Figure a).…”

Highly efficient and flexible photodetector based on MoS2–ZnO heterostructures

“…Formation of granular surface is common for epitaxial ZnO lms produced by the ALD process. 17,18 When increasing the ZnO lm thickness by the process cycles, ZnO nanopatches with island-shape disappear, and at thin lms were formed in the MoS 2 nanosheets (Fig. S1 †).…”

Nanoscale Patterning of Zinc Oxide from Zinc Acetate Using Electron Beam Lithography for the Preparation of Hard Lithographic Masks

“…This precursor is inexpensive and soluble and has a low decomposition temperature, making it an ideal candidate for use in many deposition techniques such as metal–organic chemical vapor deposition (MOCVD), spray pyrolysis, sol–gel technique, and thermal evaporation. − Many papers report the structural, morphological, optical, and electrical properties of zinc oxide films prepared from zinc acetate. This film is controlled by adjusting the deposition parameters such as the heating conditions, the thickness of the layer, or the solvent concentration. − …”