首页> 外文期刊>Journal of nano research >Laser Induced Nanostructure Formation on a surface of CdZnTe Crystal
【24h】

Laser Induced Nanostructure Formation on a surface of CdZnTe Crystal

机译:激光诱导CdZnTe晶体表面纳米结构的形成

获取原文
获取原文并翻译 | 示例
           

摘要

For the first time, a new PL band at 1.8718 eV is observed after irradiation of Cd_(1-x)Zn_xTe (x = 0.1) crystal by Nd:YAG laser at intensity 12.0 MW/cm~2. The origin of this PL band we connect with formation of strongly enriched layer by Zn atoms at the irradiated surface of the sample due to a themogradient effect. Self-organizing structures of nanometer size are observed on the surface of a CdZnTe crystal (x = 0.1) irradiated by strongly absorbed Nd:YAG laser radiation at intensities 4.0-12.0 MW/cm~2. The effect of exciton quantum confinement manifested by a shift to higher energies of the A~0,X exciton line in the photoluminescent spectrum is present in structures of 10-15 nm in diameter at the top of nanohills. A graded band gap structure with optical window is formed on the top of nanohills.
机译:Nd:YAG激光以12.0 MW / cm〜2的强度照射Cd_(1-x)Zn_xTe(x = 0.1)晶体后,首次观察到1.8718 eV的新PL带。由于热梯度效应,该PL带的起源与在样品的照射表面上由Zn原子形成的高度富集层有关。在强吸收的Nd:YAG激光辐射强度为4.0-12.0 MW / cm〜2的CdZnTe晶体(x = 0.1)的表面上观察到了纳米尺寸的自组织结构。在纳米发光体的顶部直径为10-15 nm的结构中,存在着由光致发光光谱中的A〜0,X激子谱线向更高能量转移而表现出的激子量子约束效应。具有光学窗口的渐变带隙结构形成在纳米丘的顶部。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号