Electrochemical Deposition of ZnO Nanostructures. Mechanism of Growth

被引：4

作者：

Rayon, E. ^{[1
]}

Ferrer, C. ^{[1
]}

机构：

[1] Univ Politecn Valencia, Inst Tecnol Mat, E-46022 Valencia, Spain

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2010年 / 10卷 / 02期

关键词：

Zinc Oxide; Nanorods; Electrodeposition; Solar Cells; Thin Films; ZINC-OXIDE; OPTICAL-PROPERTIES; NANOWIRE ARRAYS; ELECTRODEPOSITION; PHOTOLUMINESCENCE; LUMINESCENCE; FABRICATION;

D O I：

10.1166/jnn.2010.1855

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The growth kinetics of ZnO nanorods were studied by means of an electrochemical deposition process on ITO electrodes submerged in an aqueous solution of 5 mM ZCl + 0.1 M KCl at 80 degrees C. The stages of the growth kinetics showed a mechanism of formation of nano-spheres which with time were transformed into hexagonal crystals of ZnO. Cathodic current densities of 0.1 to 1 mAcm(2) formed hexagonal columns of 800 nm thickness while stronger currents formed a high-density layer of cylindrical nanorods 80 nm in diameter. An amorphous barrier layer was found between the surface of the electrode and the base of the nano-columns. The conditions assayed showed the possibility of adjusting the morphological characteristics of the layer in order to obtain different properties in different applications.

引用

页码：1371 / 1375

页数：5

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