Molecular orientation control of semiconducting molecules using a metal layer formed by wet processing
Molecular orientation control of semiconducting molecules using a metal layer formed by wet processing
复制标题
DOI：
10.1016/j.orgel.2018.09.008
复制
发表时间：
2018-12
影响因子：
3.2
通讯作者：
Kohei Yamamoto;M. Shahiduzzaman;A. Yamada;Tomotsugu Takaya;Tatsuki Chikamatsu;T. Koganezawa;Makoto Karakawa;T. Kuwabara;Kohshin Takahashi;T. Taima
中科院分区：
文献类型：
--
作者：
Kohei Yamamoto;M. Shahiduzzaman;A. Yamada;Tomotsugu Takaya;Tatsuki Chikamatsu;T. Koganezawa;Makoto Karakawa;T. Kuwabara;Kohshin Takahashi;T. Taima
分子取向的精确控制是提高有机光伏电池性能的主要途径。在此，我们尝试将分子取向控制方法应用于OPV电池，使用基于通过湿法加工制造的低聚噻吩（DRCN 5T）的小分子来改善太阳能电池的性能。DRCN 5T分子的光吸收通过其向正面分子取向的转换而增强，导致本体异质结OPV电池的功率转换效率比含有具有边缘分子取向的DRCN 5T的电池高10%。我们的研究结果提出了一种通过精确控制分子取向来开发通过湿法加工制造的高效OPV太阳能电池的路线。
The precise control of molecular orientation is a major route used to improve the performance of organic photovoltaic (OPV) cells. Herein, we attempt to apply molecular orientation control method to OPV cells using small molecules based on an oligothiophene (DRCN5T) fabricated by wet processing to improve the solar cell performance. The light absorbance of DRCN5T molecules was enhanced by their conversion to face-on molecular orientation, resulting in bulk heterojunction OPV cells with 10% higher power conversion efficiency than that of cells containing DRCN5T with edge-on molecular orientation. Our results suggest a route to develop highly efficient OPV solar cells fabricated by wet processing through precise control of molecular orientation.