Li, Chao;Zhou, Jiadong;Song, Jiali;Xu, Jinqiu;Zhang, Huotian;Zhang, Xuning;Guo, Jing;Zhu, Lei;Wei, Donghui;Han, Guangchao;Min, Jie;Zhang, Yuan;Xie, Zengqi;Yi, Yuanping;Yan, He;Gao, Feng;Liu, Feng;Sun, Yanming published 《Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells》. The research results were published in《Nature Energy》 in 2021.Category: alcohols-buliding-blocks The article conveys some information:
Mol. design of non-fullerene acceptors is of vital importance for high-efficiency organic solar cells. The branched alkyl chain modification is often regarded as a counter-intuitive approach, as it may introduce an undesirable steric hindrance that reduces charge transport in non-fullerene acceptors. Here we show the design and synthesis of a highly efficient non-fullerene acceptor family by substituting the beta position of the thiophene unit on a Y6-based dithienothiophen[3,2-b]-pyrrolobenzothiadiazole core with branched alkyl chains. It was found that such a modification to a different alkyl chain length could completely change the mol. packing behavior of non-fullerene acceptors, leading to improved structural order and charge transport in thin films. An unprecedented efficiency of 18.32% (certified value of 17.9%) with a fill factor of 81.5% is achieved for single-junction organic solar cells. This work reveals the importance of the branched alkyl chain topol. in tuning the mol. packing and blend morphol., which leads to improved organic photovoltaic performance.2-Hexyl-1-decanol (cas: 2425-77-6) were involved in the experimental procedure.
2-Hexyl-1-decanol(cas: 2425-77-6) has been shown to inhibit the growth of b16 mouse melanoma cells, suggesting it may be useful for treating skin cancer.Category: alcohols-buliding-blocks This fatty acid also has transport properties and can form hydrogen bonds with other molecules.
Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts