Physical properties of ZnO:F obtained from a fresh and aged solution of zinc acetate and zinc acetylacetonate

被引：24

作者：

Maldonado, A

Tirado-Guerra, S

Meléndez-Lira, M

Olvera, MD

机构：

[1] CINVESTAV, IPN, Dept Ingn Elect SEES, Mexico City 07000, DF, Mexico

[2] IPN, Escuela Super Fis & Matemat, Mexico City 07300, DF, Mexico

[3] CINVESTAV, IPN, Dept Fis, Mexico City 07000, DF, Mexico

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2006年 / 90卷 / 06期

关键词：

zinc oxide; spray pyrolysis; thin films; transparent conductive oxide;

D O I：

10.1016/j.solmat.2005.04.011

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Fluorine-doped zinc oxide thin films, ZnO:F, were deposited by the spray pyrolysis technique on sodocalcic glass substrates. Two different zinc precursors were used separately, namely, zinc acetate and zinc pentanedionate. The effect of the zinc precursor type, the aging of the starting solution, the substrate temperature and a vacuum-annealing treatment on the electrical, morphological, structural and optical properties was studied, in order to obtain conductive and transparent ZnO:F thin films. The resistivity values of ZnO:F thin films deposited from aged solutions were lower than those films obtained from fresh solutions. The lowest resistivity values of as-grown films deposited at 500 degrees C, using a two-day aged starting solution of zinc acetate and zinc pentanedionate, were 1.4 X 10(-2) and 1.8 X 10(-2) Omega cm, respectively. After a vacuum annealing treatment performed at 400 degrees C for 30 min a decrease in the resistivity was obtained, reaching a minimum value of 6.5 X 10(-3) Omega cm for films deposited from an aged solution of zinc acetate. The films were polycrystalline, with a (002) preferential growth orientation in all the cases. Micrographs obtained by SEM show a uniform surface covers by rounded grains. No evident change in the surface morphology was observed with the different precursors used. The transmittance of films in the visible region was higher than 80%. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：742 / 752

页数：11

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