• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Inkjet Printing Epitaxial Metal Halide Perovskites on Various Substrates?
【24h】

Inkjet Printing Epitaxial Metal Halide Perovskites on Various Substrates?

机译：喷墨印刷外延金属卤化物钙锌矿在各种基材上？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In their Progress Report, Sytnyk et al. claimed the epitaxial deposition of metal halide perovskites by inkjet printing on various substrates. The claims of epitaxy are doubtful due to a lack of convincing experimental evidence. Both optical microscopy and scanning electron microscopy images alone are insufficient to prove epitaxy. Even if the images suggest that epitaxial growth might have been achieved, direct evidences from X-ray diffraction (XRD) or electron diffraction are still needed. Among the six perovskite-substrate systems, only two CH3NH3PbI3 deposits on (111)PbTe/BaF2 are characterized with XRD. According to their XRD patterns, actually, it is estimated that each of their MAPbI(3) deposits contains only 20% epitaxial components and the component of nearly random orientation is predominant besides considerable impurity PbI2. None of the MAPbI(3) deposits can be considered epitaxial. It is critical to point out the errors in the methodology for verifying epitaxy, so that researchers would not be misled by Sytnyk's paper. Importantly, a new methodology to quantify the volume fraction of each epitaxial component in a thin film from XRD measurements is proposed. It is reliable to estimate the degree of texture according to the proposed equations, quite different from using Lotgering degree of orientation.
机译：在他们的进度报告中，Sytnyk等人。通过喷墨印刷在各种基材上索取金属卤化物钙锌矿的外延沉积。由于缺乏令人信服的实验证据，外延的索赔是值得怀疑的。单独的光学显微镜和扫描电子显微镜图像不足以证明外延。即使图像表明，仍然需要从而实现外延生长，仍然需要从X射线衍射（XRD）或电子衍射的直接证据。在六种钙钛矿底物系统中，（111）PBTE / BAF2上只有两个CH 3NPBβ沉积物的特征在于XRD。根据其XRD图案，实际上，估计其每个MAPBI（3）沉积物仅含有<20％的外延组分，除了相当大的杂质PBI2之外，几乎随机取向的组分是主要的。没有MAPBI（3）存款可以被视为外延。要指出验证外延的方法中的错误至关重要，因此研究人员不会被Sytnyk纸张误导。重要的是，提出了一种用于量化来自XRD测量的薄膜中每个外延分量的体积分数的新方法。根据所提出的方程，估计纹理程度是可靠的，从而与使用提升程度不同。

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