Properties of Li-Doped NiO Thin Films Prepared by RF-Magnetron Sputtering

Abstract

Li-doped NiO thin films were deposited on glass and c-axis (0001) sapphire single crystal substrates by radio frequency (RF)-niagnetron sputtering. The effects of the type of substrate, substrate temperature and atmosphere on the structural, electrical and optical properties of the NiO thin films were examined. The electrical conductivity of the NiO thin films depends on the type of substrate, substrate temperature and oxygen atmosphere. The electrical conductivity of the thin films on the glass and sapphire substrates was improved by the introduction of oxygen and decreased with increasing substrate temperature. The optical transmittance decreased with the introduction of oxygen and increased with increasing substrate temperature.

Mo and Ni Coordinated Bimetallic Oxide as Catalyst in Modified Separators for Low‐Capacity Decay Lithium Sulfur Batteries

“…[24] The above works demonstrate the feasibility of bimetallic oxides in catalyzing polysulfides. Among the various bimetallic oxides, nickel molybdate (NiMoO 4 ) oxides possess relatively high electrical conductivity (10 À 4 S m À 1 , [25] NiO is 10 À 13 S m À 1 [26] ) and high electrocatalytic activity, which have been investigated as lithium storage materials. [27] In addition, NiMoO 4 adopts the monoclinic structure with the Mo atom-centered tetrahedra and the Ni atom-centered octahedra interconnected by edge sharing, which constitutes a 3D network structure with open channels, which are beneficial for faster diffusion of ions.…”