Patent ID: 8895427

Claim:
A method for producing a substrate including a base and at least one transparent electroconductive oxide layer composed mainly of zinc oxide and formed on the base, wherein the at least one transparent electroconductive oxide layer is composed of a transparent electroconductive oxide containing 0.8 to 2.2% silicon dioxide by weight relative to zinc oxide and having a peak amplitude ratio I LO /I TO of 0.40 or more, when I LO and I TO represent respectively peak amplitudes in a longitudinal optical mode and a transverse optical mode, both modes being A1-symmetrical optical vibration modes detected by a laser Raman spectrometry, the method comprising: forming the transparent electroconductive oxide layer by a magnetron sputtering method using a mixture of zinc oxide and 0.8 to 2.2% silicon dioxide by weight relative to the zinc oxide as a sputtering target and applying a power density of 3.5 W/cm 2 or more to the target in a sputtering film formation.