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铜锌锡硫纳米粉体材料的合成与性能表征
  • ISSN号:1001-9731
  • 期刊名称:《功能材料》
  • 时间:0
  • 分类:TM914.42[电气工程—电力电子与电力传动]
  • 作者机构:[1]云南师范大学太阳能研究所,昆明650500, [2]河南师范大学物理与电子工程学院,河南省光伏材料重点实验室,河南新乡453007, [3]华北电力大学可再生能源学院,北京102206
  • 相关基金:国家自然科学基金资助项目(61176127,61006085,11474248);国家国际科技合作重点资助项目(201IDFA62380);中国博士后科学基金资助项目(2013M540908);教育部博士点基金资助项目(20105303120002)
中文摘要:

采用固相反应法合成了含有铜锌锡硫相的纳米粉体材料;利用X射线荧光光谱仪、X射线衍射仪(XRD)、显微拉曼光谱仪对样品的组成比和相结构进行表征,利用透射电子显微镜和紫外-可见-近红外分光光度计对样品的形貌和光学性能进行表征分析。结果表明,所得样品的XRD衍射峰与JCPDS卡片号为26-0575的峰值一一对应,证明了在不同烧结温度下制成的样品中均含有铜锌锡硫相,在烧结温度高于500℃时,制得样品为纯的铜锌锡硫相。所得样品的衍射峰强度以及晶粒尺寸受烧结温度的影响,样品的原子比Cu/(Zn+Sn)接近1,符合材料的化学计量组成的要求,而且薄膜的略微富铜或贫铜与烧结温度无关,主要由实验的随机误差造成。各样品的Zn/Sn值均约等于1,随烧结温度升高呈下降趋势。所制得铜锌锡硫对可见光有明显的吸收,利用外延法推算得到禁带宽度约为1.51eV。该材料可用来压制铜锌锡硫靶材,为磁控溅射铜锌锡硫薄膜奠定基础。

英文摘要:

Cu2ZnSnS4 nano powder materials were prepared by the solid state reaction method. The composition ratios and phase structures of the powder samples were characterized by X-ray fluorescence spectrometer, X-ray diffraction (XRD) and micro Raman spectroscopy, the morphology and optical properties were characterized by TEM and UV-Vis-NIR spectrophotometer. The results show that the XRD diffraction peaks of the samples are one-to-one correspondence to the peaks of the JCPDS card 26-0575, which proves that the samples contain CZTS phase at different sintering temperatures. It shows a pure CZTS phase while the sintering temperature is above 500 ℃. The diffraction intensity and the grain size of CZTS powders are affected by the sintering tempera ture. The atomic ratios Cu/(Zn+Sn) are close to 1, consistent with the stoichiometric composition. Besides, it has nothing to do with the sintering temperature that the sample is copper rich or poor copper, which is mainly caused by the random error of the experiment. The atomic ratios Zn/Sn are approximately equal to 1, and the Zn/Sn values decrease with the increase of the sintering temperature. Besides, As-obtained CZTS powders have obvious absorption in the visible region, and the band gap was derived by extension method , is about 1.51 eV. This material can be used to suppress the CZTS target, which lays the foundation for depositing the CZTS film by magnetron sputtering technique.

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期刊信息
  • 《功能材料》
  • 北大核心期刊(2011版)
  • 主管单位:重庆材料研究院
  • 主办单位:重庆材料研究院
  • 主编:黄伯云
  • 地址:重庆北碚区蔡家工业园嘉德大道8号
  • 邮编:400707
  • 邮箱:gnclwb@126.com
  • 电话:023-68264739
  • 国际标准刊号:ISSN:1001-9731
  • 国内统一刊号:ISSN:50-1099/TH
  • 邮发代号:78-6
  • 获奖情况:
  • 2008、2011年连续获中国精品科技期刊,2010获重庆市双十佳期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:30166