【摘 要】
：
Pure ZnO and indium-doped ZnO (In-ZO) nanoparticles with concentrations of In ranging from 0 to 5％ are synthesized by a sol-gel processing technique.The structur
【机 构】
：
Laboratory of Physics of Materials and Nanomaterials Applied at Environment(LaPhyMNE),Faculty of Sci
论文部分内容阅读
Pure ZnO and indium-doped ZnO (In-ZO) nanoparticles with concentrations of In ranging from 0 to 5％ are synthesized by a sol-gel processing technique.The structural and optical properties of ZnO and In-ZO nanoparticles are characterized by different techniques.The structural study confirms the presence of hexagonal wurtzite phase and indicates the incorporation of In3+ ions at the Zn2+ sites.However,the optical study shows a high absorption in the UV range and an important reflectance in the visible range.The optical band gap of In-ZnO sample varies between 3.16 eV and 3.22 eV.The photoluminescence (PL) analysis reveals that two emission peaks appear:one is located at 381 nm corresponding to the near-band-edge (NBE) and the other is observed in the green region.The aim of this work is to study the effect of indium doping on the structural,morphological,and optical properties of ZnO nanoparticles.
其他文献
教育部在2003年秋季开始在全国各地颁布执行重新修订后的新的教学大纲和与之相配套的采用话题、功能结构相结合的“任务型”的新教材.要求课堂以结构和结构功能为主线,组织和
针对目前高职艺术设计专业教学质量监控与评价体系存在的问题,提出应根据专业自身的教学规律和专业特点,构建一套科学、完整、合理的教学质量监控与评价体系.
作为柑橘生产大国,我国柑橘的主要栽培品种多以鲜食为主。随着社会经济的高速发展,消费者对柑橘果实的内在与外观品质均提出了更高的要求。柑橘果实的内在品质主要包括:柑橘
元认知策略要求学生在阅读中及时地进行自我监督、自我检查、自我评估,使自己的阅读行为获得调整和改善.本文旨在通过相关研究来考察元认知策略在高中英语阅读教学中所发挥的
让学生健康地成长,培养他们良好的心理素质,促进其个性的发展,健全其个格,使他们能夯实心理基础迎接挑战,是我们每个小学教师义不容辞的责任.如何使培养学生健康的心理素质使
In this paper,we present a highly efficient structure determination pipeline software suite (X2DF) that is based on the "Parameter space screening" method,by co
几年的英语学下来,都会产生一批英语成绩不尽人意的学困生,其中的原因有很多,比如初中的基础不够好;英语学习方法不当;不适应教学氛围环境等等,这些学生,在班级英语学习群体
本文反思了小学数学的有效教学中出现的问题,诸如对有效教学的标准理解不够全面深入,对提问环节的忽略或者重视不足,教师对课程资源的开发意识不强、力不从心等.
Granular packings under gravity in frictional and frictionless silos were simulated and the influence of the wall friction on the normal force distribution was
作为一个教师,既是教育者,也是管理者,要想做好教育和管理工作,做到会赏识激励学生,是很重要的.本文就此作一探讨.