极性电气石衬底对ZnO纳米片生长的影响

doi:10.3724/SP.J.1077.2010.00717

无机材料学报 ›› 2010, Vol. 25 ›› Issue (7): 717-720.DOI: 10.3724/SP.J.1077.2010.00717

极性电气石衬底对ZnO纳米片生长的影响

郭昀, 夏义本, 闵嘉华, 赵岳, 王斌

(上海大学材料科学与工程学院, 上海 200072)

收稿日期:2009-11-03 修回日期:2010-01-28 出版日期:2010-07-20 网络出版日期:2010-06-10
基金资助:
国家自然科学基金(60676002); 上海市教育委员会基金(06AZ007)

Influence of Polar Tourmaline Substrates on the Growth of ZnO Nanoplates

GUO Yun, XIA Yi-Ben, MIN Jia-Hua, ZHAO Yue, WANG Bin

(School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China)

Received:2009-11-03 Revised:2010-01-28 Published:2010-07-20 Online:2010-06-10

摘要/Abstract

摘要：

采用极性电气石(0001)晶面作为生长衬底, 通过超声雾化热解技术, 制备出直立片状晶体交叉构成的纳米ZnO薄膜, XRD和Raman测试显示晶体为六方纤锌矿结构. 利用电子探针和穆斯堡尔谱, 研究了电气石衬底的化学组成和Fe离子的精细结构, ZnO的片状生长与极性电气石的表面电场作用相关, 随着电气石中Fe离子含量、价态和占位的变化, 晶体沿c轴的固有电偶极矩越高, 表面电场作用越强, ZnO纳米片的厚径比越小.

关键词: ZnO纳米片, 电气石衬底, 表面电场作用, 电偶极矩

Abstract:

Nanoplate-shaped ZnO thin film was achieved by the ultrasonic spray pyrolysis technique, using polar (0001) tourmaline wafers as the growing substrates. The as-prepared nanoplates were cross-linked and upright- standing. XRD and Raman tests revealed the hexagonal structure of wurtzite. The electron probe microanalysis and M?ssbauer spectroscope were utilized to explore the chemical composition and the fine structures of Fe ions in tourmaline substrates. The plate-like growth of ZnO nanocrystals are related to the surface electric field effect of tourmaline crystals. With the variation of Fe ions contents, valence states and occupation characters, the ratio of thickness to diameter of the ZnO nanoplates decreases with the increase of the intrinsic dipole moments along the c axis and the strengthening of surface electric field effect in tourmaline crystals.

Key words: ZnO nano-plates, tourmaline substrate, surface electric field, electric dipole moment

中图分类号:

TQ132

郭昀, 夏义本, 闵嘉华, 赵岳, 王斌. 极性电气石衬底对ZnO纳米片生长的影响[J]. 无机材料学报, 2010, 25(7): 717-720.

GUO Yun, XIA Yi-Ben, MIN Jia-Hua, ZHAO Yue, WANG Bin. Influence of Polar Tourmaline Substrates on the Growth of ZnO Nanoplates[J]. Journal of Inorganic Materials, 2010, 25(7): 717-720.

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极性电气石衬底对ZnO纳米片生长的影响

Influence of Polar Tourmaline Substrates on the Growth of ZnO Nanoplates

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