p-Type zinc oxide powders

被引：20

作者：

Li, J.

Kykyneshi, R.

Tate, J.

Sleight, A. W.

机构：

[1] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA

[2] Oregon State Univ, Dept Phys, Corvallis, OR 97331 USA

来源：

SOLID STATE SCIENCES | 2007年 / 9卷 / 07期

基金：

美国国家科学基金会;

关键词：

zinc oxide; p-Type;

D O I：

10.1016/j.solidstatesciences.2007.02.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Zinc oxide powders prepared by decomposition of zinc peroxide and zinc nitrate show evidence of acceptor states from iodometric titrations. Chemical analysis also shows the presence of nitrogen in the samples prepared by nitrate decomposition. The evidence for acceptor states disappears on heating samples, eliminating the possibility of transport measurements on sintered samples. Complex impedance spectra suggest room temperature conductivities as high as 5 x 10(-4) and 2 x 10(-3) S/cm for these peroxide and nitrate derived zinc oxide powders, respectively. As zinc oxide particles become small there is an increase in unit cell dimensions and a red shift of the absorption edge. An even stronger red shift is observed in the case of N doping. (c) 2007 Elsevier Masson SAS. All rights reserved.

引用

页码：613 / 618

页数：6

共 31 条

[1] EARLY STAGES OF CRYSTALLITE GROWTH OF ZNO OBTAINED FROM AN OXALATE PRECURSOR [J].