• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced energy materials >Steric Engineering of Alkylthiolation Side Chains to Finely Tune Miscibility in Nonfullerene Polymer Solar Cells
【24h】

Steric Engineering of Alkylthiolation Side Chains to Finely Tune Miscibility in Nonfullerene Polymer Solar Cells

机译：烷基硫醇化侧链的立体工程以微调非富勒烯聚合物太阳能电池中的可混溶性

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

Morphology and miscibility control are still a great challenge in polymer solar cells. Despite physical tools being applied, chemical strategies are still limited and complex. To finely tune blend miscibility to obtain optimized morphology, chemical steric engineering is proposed to systemically investigate its effects on optical and electronic properties, especially on a balance between crystallinity and miscibility. By changing the alkylthiol side chain orientation different steric effects are realized in three different polymers. Surprisingly, the photovoltaic device of the polymerPTBB-m with middle steric structure affords a better power conversion efficiency, over 12%, compared to those of the polymers PTBB-o and PTBB-p with large or small steric structures, which could be attributed to a more balanced blend miscibility without sacrificing charge-carrier transport. Space charge-limited current, atomic force microscopy, grazing incidence wide angle X-ray scattering, and resonant soft X-ray scattering measurements show that the steric engineering of alkylthiol side chains can have significant impacts on polymer aggregation properties, blend miscibility, and photovoltaic performances. More important, the control of miscibility via the simple chemical approach has preliminarily proved its great potential and will pave a new avenue for optimizing the blend morphology.
机译：形态和可混溶性控制仍然是聚合物太阳能电池中的巨大挑战。尽管使用了物理工具，但化学策略仍然有限且复杂。为了微调共混物的可混性以获得最佳的形态，提出了化学空间工程技术来系统地研究其对光学和电子性能的影响，尤其是对结晶度和可混溶性之间的平衡的影响。通过改变烷硫醇侧链的取向，在三种不同的聚合物中实现了不同的空间效应。令人惊讶地，与具有大或小的空间结构的聚合物PTBB-o和PTBB-p的那些相比，具有中间空间结构的聚合物PTBB-m的光伏器件提供了更好的功率转换效率，超过12％。在不牺牲电荷载流子传输的情况下实现更平衡的混合溶混性。空间电荷限制电流，原子力显微镜，掠射入射广角X射线散射和共振软X射线散射测量表明，烷硫醇侧链的空间工程可对聚合物聚集特性，共混物混溶性和光伏产生重大影响表演。更重要的是，通过简单的化学方法控制混溶性已初步证明了其巨大的潜力，并将为优化共混物形态铺平新的途径。

著录项

  • 来源
    《Advanced energy materials》 |2019年第4期|1802686.1-1802686.11|共11页
  • 作者

    Xue Xiaonan; Weng Kangkang; Qi Feng; Zhang Yu; Wang Zaiyu; Ali Jazib; Wei Donghui; Sun Yonming; Liu Feng; Wan Meixiu; Liu Juan; Huo Lijun;

  • 作者单位

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China;

    Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Chem, Beijing 100191, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    alkylthiolation; miscibility; nonfullerene; polymer solar cells; steric effects;

    机译：烷基硫醇化;混溶性;富勒烯;聚合物太阳能电池;空间效应;

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