...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Thin Solid Films >Surfactant-free stable SnS_2 nanoparticles dispersion for deposition of device- quality films
【24h】

Surfactant-free stable SnS_2 nanoparticles dispersion for deposition of device- quality films

机译：不含表面活性剂的稳定SnS_2纳米粒子分散体，用于沉积器件质量的薄膜

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

Tin sulfide (SnS2) has recently attracted considerable attention due to its layered structure that may form two dimensional morphologies. It is an n-type semiconductor with band gap and electron affinity similar to CdS and In2S3; therefore can be regarded as an alternative for these materials in thin film solar cells. Here, we synthesis of SnS2 nanoparticles with different morphology in different ratio of water-ethanol mixed solution by solvothermal method, and observe that more ethanol leads to large sheet like morphologies, while water based synthesis results in very small nanosheets. A challenge in wet deposition of device-quality thin films of SnS2 is the requirement for highly dispersed particles/sheets. We found highly polar dimethylformamide (DMF) as the right dispersing medium, yielding highly stable dispersions. Very uniform nanocrystalline thin films with [001] preferred orientation and good adhesion to substrate are simply deposited by drop casting and spin coating a 0.5 wt% DMF sol of SnS2 at 2000 rpm for 1 min. Electron affinity and band gap of the films are 4.33 eV and 2.27 eV, which is well aligned for copper indium gallium sulfo-selenide (CIGS) solar cells.
机译：硫化锡（SnS2）由于其分层结构可能会形成二维形态，因此近来备受关注。它是一种具有类似于CdS和In2S3的带隙和电子亲和力的n型半导体。因此可以看作是薄膜太阳能电池中这些材料的替代品。在这里，我们通过溶剂热法在不同比例的水-乙醇混合溶液中合成了具有不同形态的SnS2纳米粒子，并观察到更多的乙醇导致了大片状的形貌，而水基合成导致了非常小的纳米片。湿法沉积SnS2器件质量薄膜的挑战是需要高度分散的颗粒/片。我们发现高极性二甲基甲酰胺（DMF）是正确的分散介质，可产生高度稳定的分散体。通过滴铸并在2000 rpm下旋涂0.5 wt％SnS2的DMF溶胶1分钟，可以简单地沉积具有[001]优选取向和对基材良好附着力的非常均匀的纳米晶体薄膜。薄膜的电子亲和力和带隙分别为4.33 eV和2.27 eV，这对于铜铟镓磺基硒化（CIGS）太阳能电池来说是很好的对准。

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