...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Thin Solid Films >Morphology of CdSe films prepared by chemical bath deposition: The role of substrate
【24h】

Morphology of CdSe films prepared by chemical bath deposition: The role of substrate

机译：化学浴沉积法制备的CdSe膜的形貌：基底的作用

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

We combine optical spectroscopy and transmission electron microscopy to study the growth and the structural morphology of CdSe films prepared by chemical bath deposition (CBD) on two considerably different substrates. The films grown on glass are compact and strongly adherent to the substrate. On the contrary, the films deposited on carbon-coated glass (with approx. 20 nm thick amorphous carbon layer) are only loosely adherent to the substrate. Using transmission electron microscopy we revealed that even though the films grown on both substrates are assembled from closely spaced nanocrystals with diameter of about 5 nm, the films morphology on the sub-micrometer scale is considerably different in the two cases. While the films deposited on glass are rather compact, the films prepared on carbon layer have high porosity and are formed by interconnected spheres which size is dependent on the duration of deposition (e.g. 155 nm for 6 h and 350 nm for 24 h). This shows that the choice of the substrate for CBD has a stronger influence on the sub-micrometer film morphology than on the properties of individual nanocrystals forming the film.
机译：我们将光谱学和透射电子显微镜相结合，以研究通过化学浴沉积（CBD）在两种截然不同的基板上制备的CdSe膜的生长和结构形态。在玻璃上生长的薄膜是致密的，并牢固地粘附在基材上。相反，沉积在碳涂层玻璃上的膜（具有约20 nm厚的无定形碳层）仅松散地粘附在基材上。使用透射电子显微镜我们发现，即使在两个基板上生长的薄膜是由直径约5 nm的紧密间隔的纳米晶体组装而成的，在两种情况下，亚微米级的薄膜形态也有很大差异。尽管沉积在玻璃上的膜相当致密，但在碳层上制备的膜具有高孔隙率，并且由相互连接的球形成，其大小取决于沉积的持续时间（例如155 nm持续6 h，350 nm持续24 h）。这表明，对于CBD而言，基板的选择对亚微米薄膜形态的影响比对形成薄膜的单个纳米晶体的特性的影响更大。

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