• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Influence of the relative humidity on the performance of polymer/TiO2 photovoltaic cells
【24h】

Influence of the relative humidity on the performance of polymer/TiO2 photovoltaic cells

机译：相对湿度对聚合物/ TiO2光伏电池性能的影响

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

Hydrolysis of titanium(IV) isopropoxide (TTIP) is a well-known method for the fabrication of TiO2. Normally it is made via a sol-gel reaction in the presence of water. In this paper we report on the preparation of flat TiO2 films for conjugated polymer/TiO2 photovoltaic cells, from a TTIP/isopropanol solution. It is shown that the morphological structure of the TiO2 film is strongly dependent on the relative humidity during spin-coating of the TTIP/isopropanol solution. In bilayer devices consisting of TiO2/poly[2-methoxy-5-(3',7'-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV), a low relative humidity (< 25%, room temperature) is needed in order to form smooth, transparent TiO2 films, Increasing the relative humidity results in porous TiO2 films with a high surface roughness, which leads to shunted devices. Apart from bilayer devices, bulk-heterojunction (BHJ) hybrid TiO2:MDMO-PPV photovoltaic cells have been made, by spin-coating a mixture of TTIP and MDMO-PPV in toluene. Again a strong relation was found between the relative humidity during spin-coating and the current-voltage characteristics of the devices. However, in contrast to the bilayer devices, the best BHJ devices were made at higher relative humidity. The observed performance dependence on relative humidity is discussed in relation to the TiO2 morphology.
机译：异丙醇钛（IV）的水解（TTIP）是制造TiO2的众所周知的方法。通常，它是在水存在下通过溶胶-凝胶反应制得的。在本文中，我们报告了从TTIP /异丙醇溶液制备用于共轭聚合物/ TiO2光伏电池的扁平TiO2薄膜的方法。结果表明，在TTIP /异丙醇溶液的旋涂过程中，TiO2薄膜的形貌结构强烈依赖于相对湿度。在由TiO2 /聚[2-甲氧基-5-（3'，7'-二甲基辛氧基）-1,4-亚苯基亚乙烯基]（MDMO-PPV）组成的双层器件中，相对湿度较低（<25％，室温）为了形成光滑，透明的TiO2膜所必需的，增加相对湿度会导致具有高表面粗糙度的多孔TiO2膜，从而导致分流器件。除双层器件外，还通过在甲苯中旋涂TTIP和MDMO-PPV的混合物，制成了体-异质结（BHJ）杂化TiO2：MDMO-PPV光伏电池。再次发现旋涂期间的相对湿度与器件的电流-电压特性之间存在很强的关系。但是，与双层器件相反，最好的BHJ器件是在较高的相对湿度下制造的。观察到的性能对相对湿度的影响与TiO2的形态有关。

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