MgxZn1-xO籽晶层的镁含量比对ZnO纳米棒结构和光学性质的影响

Magnesium content ratio effects of MgxZn1-xO seed layers on structural and optical properties of ZnO nanorods.

作者信息

Kim Min Su, Kim Do Yeob, Kim Soaram, Nam Giwoong, Kim Sung-O, Lee Dong-Yul, Kim Jin Soo, Kim Jong Su, Leem Jae-Young

机构信息

Department of Nano Systems Engineering, Center for Nano Manufacturing, Inje University, Gimhae, Gyungnam 621-749, Republic of Korea.

出版信息

J Nanosci Nanotechnol. 2012 Jul;12(7):5386-91. doi: 10.1166/jnn.2012.6236.

DOI:10.1166/jnn.2012.6236

PMID:22966576

Abstract

ZnO nanorods were grown on MgxZn1-xO seed layers with different content ratio ranging from 0 to 0.3 by hydrothermal method. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL) were carried out to investigate the effects of Mg content ratio for the MgxZn1-xO seed layers on the structural and optical properties of the ZnO nanorods. The surface morphology and structural properties of the MgxZn1-xO seed layers were changed by the Mg incorporation. However, the appearance, such as density, diameter, and shape, of the ZnO nanorods grown on the MgxZn1-xO seed layers was not changed significantly. The highest intensity ratio of the near-band-edge emission (NBE) to deep-level emission (DLE) and the narrowest full width at half maximum (FWHM) of the NBE peaks, indicating improvement in the crystallinity and luminescent properties of the ZnO crystals, were observed in the ZnO nanorods grown on the MgxZn1_xO seed layers with the content ratio of the 0.05.

摘要

通过水热法在Mg含量比从0到0.3变化的MgxZn1-xO籽晶层上生长ZnO纳米棒。利用扫描电子显微镜（SEM）、X射线衍射（XRD）和光致发光（PL）来研究MgxZn1-xO籽晶层的Mg含量比对ZnO纳米棒结构和光学性质的影响。Mg的掺入改变了MgxZn1-xO籽晶层的表面形貌和结构性质。然而，在MgxZn1-xO籽晶层上生长的ZnO纳米棒的外观，如密度、直径和形状，并没有显著变化。在Mg含量比为0.05的MgxZn1_xO籽晶层上生长的ZnO纳米棒中，观察到了近带边发射（NBE）与深能级发射（DLE）的最高强度比以及NBE峰的最窄半高宽（FWHM），这表明ZnO晶体的结晶度和发光性质得到了改善。