Structural and Electrical Properties of Na<sub>+</sub>-doped ZnO Thin Films

LI Ying-wei; LIN Chun-fang; ZHOU Xiao; ZHU Xing-wen

Materials and Mechanical Engineering > 2007 > 31(8): 15-18.

LI Ying-wei, LIN Chun-fang, ZHOU Xiao, ZHU Xing-wen. Structural and Electrical Properties of Na₊-doped ZnO Thin Films[J]. Materials and Mechanical Engineering, 2007, 31(8): 15-18.

Citation:

LI Ying-wei, LIN Chun-fang, ZHOU Xiao, ZHU Xing-wen. Structural and Electrical Properties of Na₊-doped ZnO Thin Films[J]. Materials and Mechanical Engineering, 2007, 31(8): 15-18.

Citation:

LI Ying-wei, LIN Chun-fang, ZHOU Xiao, ZHU Xing-wen. Structural and Electrical Properties of Na₊-doped ZnO Thin Films[J]. Materials and Mechanical Engineering, 2007, 31(8): 15-18.

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Structural and Electrical Properties of Na₊-doped ZnO Thin Films

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Received Date: December 28, 2006

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Abstract

Na+-doped ZnO thin films were prepared on Si〈100〉 substrate by sol-gel method using zinc acetate and sodium carbonate as starting materials,the doping amount is 0,0.018,0.036,0.045,0.063 and 0.090 mol/L,respectively.The phase structural characteristics and electrical properties,including the cell size of ZnO lattice,the conducting type as well as the Raman shift,of the so-obtained films were investigated by XRD,SEM,Raman scattering analysis and four-point probe van der Pauw method.The results showed that Na+ can occupy the Zn2+ sites of ZnO lattice,leading to the enlargement of ZnO cell.After doping Na+,the conductive type of ZnO films changed to p from n-type,and the resistivity,Hall mobility,and the hole concentration of the film with 0.045 mol/L Na+ were 75.7 Ω·cm and 2.955×1017/cm3,respectively.
- ZnO thin film,
- Na+ dopant,
- p-type,
- sol-gel method

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Structural and Electrical Properties of Na₊-doped ZnO Thin Films