PREPARATIONS OF ZNO-AL TRANSPARENT CONDUCTING FILMS BY DC MAGNETRON SPUTTERING

被引:137
作者
MINAMI, T [1 ]
OOHASHI, K [1 ]
TAKATA, S [1 ]
MOURI, T [1 ]
OGAWA, N [1 ]
机构
[1] TOSOH CORP,CHEM LAB,YAMAGUCHI 746,JAPAN
关键词
D O I
10.1016/0040-6090(90)90224-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Highly conductive and transparent films of aluminium-doped ZnO (AZO) have been prepared by d.c. magnetron sputtering on a substrate placed parallel to the target. The spatial distributions of resistivity and thickness on the parallel substrate are controlled by plasma-controlled magnetron sputtering (PCMS) in an external d.c. magnetic field. AZO films with a resistivity as low as 2.7 x 10(-4)-OMEGA-cm can be produced on the substrate at temperatures above 250-degrees-C by the newly developed PCMS. The reduction in resistivity with increasing substrate temperature is related to the improvement in crystallinity of the AZO films. The carrier-scattering mechanism which dominates the mobility of the AZO films with the lowest resistivity is discussed from the experimental results and theoretical analysis.
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页码:721 / 729
页数:9
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