Infrared emissivities of Mn,Co co-doped ZnO powders

被引：1

作者：

姚银华

曹全喜

机构：

[1] SchoolofTechnicalPhysics,XidianUniversity

来源：

Chinese Physics B | 2012年 / 21卷 / 12期

关键词：

co-doped ZnO; optical band gap; infrared emissivity; solid-state reaction;

D O I：

暂无

中图分类号：

TN304 [材料];

学科分类号：

0805 ; 080501 ; 080502 ; 080903 ;

摘要：

<正>Infrared emissivities of Zn0.99-xMn0.01CoxO（x=0.00,0.01,0.03,0.05） powders synthesized at different calcination temperatures by solid-state reaction are investigated.Their phases,morphologies,UV absorption spectra,and infrared emissivities are studied by XRD,SEM,UV spectrophotometer,and an IR-2 dual-band infrared emissometer in a range of 8μm-14μm.Doped ZnO still has a wurtzite structure,and no peaks of other phases originating from impurities are detected.The optical band-gap decreases as the Co content and calcination temperature ascend,and of which the smallest optical band gap is 2.19 eV.The lowest infrared emissivity,0.754,is observed in Zn0.98Mn0.01Co0.01O with the increase in Co concentration.The infrared emissivity experiences fluctuations as the calcination temperature increases,and its minimum value is 0.762 at 1100℃.

引用

页码：263 / 268

页数：6

共 3 条

[1] 直流磁控溅射ZnO:Al薄膜的光电和红外发射特性 [J].

王文文 ;

刁训刚 ;

王峥 ;

王天民 ;

不详 .

北京航空航天大学学报 , 2005, (02) :236-241

[2]

Structure and magnetic properties of Zn 0.9 Co 0.1 O nanorods synthesized by a simple sol–gel method using metal acetylacetonate and poly(vinyl alcohol)[J] . Santi Maensiri,Paveena Laokul,Jutharatana Klinkaewnarong,Chunpen Thomas. Applied Physics A . 2009 (3)

[3] Ferromagnetism in transition-metal doped ZnO [J].

Pearton, S. J. ;

Norton, D. P. ;

Ivill, M. P. ;

Hebard, A. F. ;

Zavada, J. M. ;

Chen, W. M. ;

Buyanova, I. A. .

JOURNAL OF ELECTRONIC MATERIALS, 2007, 36 (04) :462-471

← 1 →