Synthesis,Crystal Structural and Electrical Conductivity Properties of Fe-Doped Zinc Oxide Powders at High Temperatures

作     者：Hakan Çolak Orhan TÜrkoglu 

作者机构：Department of ChemistryScience of FacultyUniversity of ErciyesKayseri38039Turkey Deparment of ChemistryScience of FacultyUniversity of C ank r KaratekinBall ca CampusC ank r18200Turkey 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2012年第28卷第3期

页      面：268-274页

核心收录：

学科分类：07[理学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Research Foundation of Erciyes University (Kayseri Turkey) 

主　　题：II VI semiconductors Zinc oxide and doped zinc oxide Four point probe method 

摘      要：The synthesis,crystal structure and electrical conductivity properties of Fe-doped ZnO powders（in the range of 0.25-15 mol%） were reported in this paper.I-phase samples,which were indexed as single phase with a hexagonal（wurtzite） structure in the Fe-doped ZnO binary system,were determined by X-ray diffraction（XRD）.The solubility limit of Fe in the ZnO lattice is 3 mol% at 950℃.The above mixed phase was *** the impurity phase was determined as the cubic-ZnFe 2 O 4 phase when compared with standard XRD data using the PDF *** study focused on single I-phase ZnO samples which were synthesized at 950℃ because the limit of the solubility range is the widest at this *** lattice parameters a and c of the I-phase decreased with Fe-doping *** morphology of the I-phase samples was analyzed with a scanning electron *** grain size of the I-phase samples increased with heat treatment and doping *** electrical conductivity of the pure ZnO and single I-phase samples was investigated using the four-probe dc method at 100-950℃ in air *** electrical conductivity values of pure ZnO,0.25 and 3 mol% Fe-doped ZnO samples at 100℃ were 2×10-6,1.7×10-3 and 6.3×10-4 ***-1,and at 950℃ they were 3.4,8.5 and 4 ***-1,respectively.