• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced energy materials >Thermally Durable Nonfullerene Acceptor with Nonplanar Conjugated Backbone for High-Performance Organic Solar Cells
【24h】

Thermally Durable Nonfullerene Acceptor with Nonplanar Conjugated Backbone for High-Performance Organic Solar Cells

机译：具有非共轭骨架的热耐用非富勒烯受体，用于高性能有机太阳能电池

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

A nonfullerene acceptor (NFA) with acceptor-donor-acceptor (A-D-A) architecture, i-IEICO-2F, based on 4,9-dihydro-s-indaceno[1,2-b:5,6-b ']dithiophene as an electron-donating core and 2-(6-fluoro-2,3-dihydro-3-oxo-1H-inden-1-ylidene)-propanedinitrile as electron-withdrawing end groups, is designed and synthesized. i-IEICO-2F has a twist structure in the main conjugated chain, which causes blueshifted absorption and leads to harmonious absorption with a high bandgap donor. The bandgap of i-IEICO-2F compliments the bandgap of suitable wide bandgap donor polymers such as J52, leading to complete light absorption throughout the visible spectrum. Devices based on i-IEICO-2F exhibit optimized photovoltaic performance including an open-circuit voltage of 0.93 V, a short-circuit current density of 16.61 mA cm(-2), and a fill factor of 73%, and result in a power conversion efficiency (PCE) of 11.28%. The i-IEICO-2F-based devices reach PCEs of >11% without using any additives or post-treatments. Devices are found to be thermally stable and maintain 44% of their initial PCE after 184.5 h of continuous thermal annealing (TA) treatment at 150 degrees C. Based on UV, atomic force microscopy (AFM), and grazing incidence wide angle X-ray scattering (GIWAXS) results, i-IEICO-2F devices show almost identical morphology and molecular orientation throughout the TA treatment and excellent stability compared to other IEICO derivatives.
机译：基于4,9-dihydro-s-indaceno [1,2-b：5,6-b'] dithiophene作为非富勒烯受体（NFA），具有受体-受体-受体（ADA）架构i-IEICO-2F设计并合成了一个供电子核和2-（6-氟-2,3-二氢-3-氧代-1H-茚满-1-亚烷基）丙烷衍生物作为吸电子端基。 i-IEICO-2F在共轭主链中具有扭曲结构，这会导致蓝移吸收，并导致带隙高的供体得到和谐吸收。 i-IEICO-2F的带隙与合适的宽带隙供体聚合物（例如J52）的带隙互补，从而导致整个可见光谱的光吸收完全。基于i-IEICO-2F的设备展现出优化的光伏性能，包括0.93 V的开路电压，16.61 mA cm（-2）的短路电流密度和73％的填充系数，并产生了功率转换效率（PCE）为11.28％。基于i-IEICO-2F的设备无需使用任何添加剂或进行后处理即可达到> 11％的PCE。发现该设备具有热稳定性，并且在150摄氏度下经过184.5小时的连续热退火（TA）处理后，其初始PCE保持44％。基于紫外线，原子力显微镜（AFM）和掠入射广角X射线散射（GIWAXS）结果显示，与其他IEICO衍生物相比，i-IEICO-2F装置在整个TA处理过程中表现出几乎相同的形态和分子取向，并具有出色的稳定性。

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