水热法合成Ga/Sc共掺氧化锌晶体  

Synthesis of Ga/Sc Co-doped Zinc Oxide Crystal by Hydrothermal Method

作　　者：柳成荫 卢福华 王金亮 任孟德 周海涛 雷威[1] 张梦雪 

机构地区：[1]桂林理工大学地球科学学院,桂林541000 [2]桂林百锐光电技术有限公司中国有色桂林矿产地质研究院有限公司广西超硬材料重点实验室国家特种矿物材料工程技术研究中心,桂林541000

出　　处：《人工晶体学报》2018年第2期321-325,共5页Journal of Synthetic Crystals

基　　金：广西自然科学基金(2015GXNSFAA139264);广西科学研究与技术开发计划(桂科攻1598008-9);广西科技计划(技术创新引导专项)(桂科AC16380040)

摘　　要：采用水热法,以氧化锌陶瓷为原料,4 mol/L KOH+1 mol/L LiOH作矿化剂,温度380℃,内填充度为75%制备了Ga/Sc共掺氧化锌晶体。结果显示:生长的Ga/Sc共掺氧化锌晶体呈六棱柱状,整个晶体表面基本光滑平整。负极面-c(0001)大面积显露,双掺后的氧化锌晶体形态存在明显的改变。通过超声波扫描显微镜(C-SAM)观察,晶体存在一定数量的生长缺陷。X射线双晶摇摆曲线得出(0002)面半高宽FWHM为28 arcsec,(0002)面半高宽FWHM为46 aresec,表明晶体具有较高的结晶质量。另外,紫外-可见-红外光谱仪测试发现Ga/Sc共掺氧化锌晶体透过率介于氧化锌晶体和掺镓氧化锌晶体之间。Ga/Sc co-doped ZnO crystals were prepared by hydrothermal method with zinc oxide ceramic as raw material, 4 mol/L KOH ＋ 1 mol/L LiOH as mineralizer, reaction temperature of 380 ~C, and the fill factor was 75 %. The results indicate that the Ga/Sc co-doped ZnO crystals has a shape of hexagonal prism, the surface of the whole crystal is smooth. The negative polar - c （0001-） was exposed, the morphology of Ga/Sc co-doped ZnO crystals was obviously improved. C-SAM observation shows there are a certain number of growth defects in the crystals. The X-ray rocking curves FWHM for （0002） of Ga/Sc co-doped ZnO Crystals is 28 aresec, and 46 arcsec for （0002）, indicating the crystals had high crystalline quality. In the other hand, UV/VIS/NIR spectroscopy shows the transmittance of Ga/Sc co- doped ZnO crystals are between the ZnO crystals and the gallium doped ZnO crystals.

关 键 词：氧化锌晶体 超声波扫描显微镜 X射线双晶摇摆曲线 紫外-可见-红外光谱 

分 类 号：O74[理学—晶体学]