用脉冲激光法制备了ZnO:Al透明导电膜.通过对膜的霍尔系数测量及SEM、XRD分析,详细研究了靶材中的化学配比(掺杂比)对膜的透光率和电阻率的影响.结果表明:掺杂比影响着膜的电学、光学性能和膜的结晶状况.掺杂比从0.75%增至1.5%,膜的载流子浓度、透光率( 波长大于500nm)和光隙能相应增大.在掺杂比为1.5%左右时沉积的膜的电阻率达到最小,其值为7.1×10-4Ωcm,且在可见光区其透光率超过了90%.
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