【摘 要】
：
Developing photovoltaic materials with simple chemical structures and easy synthesis still remains a major challenge in the industrialization process of organic solar cells(OSCs).Herein,an ester substituted poly(thiophene vinylene)derivative,PTVT-T,was de
【机 构】
：
School of Chemistry and Biological Engineering,University of Science and Technology Beijing,Beijing
论文部分内容阅读
Developing photovoltaic materials with simple chemical structures and easy synthesis still remains a major challenge in the industrialization process of organic solar cells(OSCs).Herein,an ester substituted poly(thiophene vinylene)derivative,PTVT-T,was designed and synthesized in very few steps by adopting commercially available raw materials.The ester groups on the thiophene units enable PTVT-T to have a planar and stable conformation.Moreover,PTVT-T presents a wide absorption band and strong aggregation effect in solution,which are the key characteristics needed to realize high performance in non-fullerene-acceptor(NFA)-based OSCs.We then prepared OSCs by blending PTVT-T with three representative fullerene-and NF-based acceptors,PC71BM,IT-4F and BTP-eC9.It was found that PTVT-T can work well with all the acceptors,showing great potential to match new emerging NFAs.Particularly,a remarkable power conversion efficiency of 16.20％is achieved in a PTVT-T:BTP-eC9-based device,which is the highest value among the counterparts based on PTV derivatives.This work demonstrates that PTVT-T shows great potential for the future commercialization of OSCs.
其他文献
Halogen atoms affect the budget of ozone and the fate of pollutants such as hydrocarbons and mercury.Yet their sources and significances in polluted continental regions are poorly understood.Here we report the observation of unprecedented levels(averaging
Materials are the cornerstone of human society.Environmentally friendly and sustainable bio-based materials are the key to achieving sustainable develop-ment,which is urgently needed to meet global challenges[1-4].Different from petroleum-based materials,
The ongoing pandemic has demonstrated to the world the drastic consequences of a strong global economic shock,while there is no doubt that the human and economic consequences of extreme cli-mate events or rising sea levels could far exceed those of the cu
庄子是前无古人、后无来者的大文学家,恣肆汪洋、上天人地、妙想奇思、鲲鹏盖世.最有名的是知不知鱼之辩:rn庄子曰:“鯈鱼出游从容,是鱼之乐也.”惠子曰:“子非鱼,安知鱼之乐?”庄子曰:“子非我,安知我不知鱼之乐?”惠子曰:“我非子,固不知子矣;子固非鱼也,子之不知鱼之乐全矣!”庄子曰:\"请循其本.
Coronavirus disease 2019(COVID-19),the disease caused by infection with se-vere acute respiratory syndrome coron-avirus 2(SARS-CoV-2),has developed into a global pandemic that continues to pose an enormous threat to public health and the global economy.Si
Biodiversity science in China has seen rapid growth over recent decades,ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as the Qinghai-Tibetan Plateau.We review research,including spec
当年读满族民俗专家金受申先生《北京话词典》,说是北京言语中对于死亡的说法有几十种.联想一下,还真不少.包括死了、去了、没了、踹了、蹬了、嗝儿了、老了、走了、听蛐蛐叫去了、听喇喇蛄叫去了、吹灯拔蜡了、伸腿瞪眼了、闭眼了、升天了、驾鹤西去了、仙逝、寿终正寝、辞世、去世、逝世、离世、告别、驾崩种种.而最不正经的说法是“嗝儿屁、嗝儿屁着凉、嗝儿屁朝梁、嗝儿屁着凉大海棠”系列.还有的地方具体解释为,人临死会打冷嗝儿,放热屁,浑身凉,仰面朝向房梁等等.
王蒙文 康笑宇圖 文学产生于劳动，这是马克思主义的文学发生学。此外，产生于性欲、产生于宗教、产生于社交……也都言之成理。 而一说到文学的产生，我首先会想到母亲临睡前给孩子讲故事。我捉摸，小儿对沉入黑夜的睡眠不无恐惧，妈妈的故事具有一种温暖和保护性，鼓励小儿对于陌生世界的亲近感。 一次在新加坡，谈到此话题，主人叹息：“现在没有这种温馨了，中产阶级家里的小儿，都是由菲佣带着入睡。” 失去给孩子
Mineral dust can indirectly affect the climate by supplying bioavailable iron(Fe)to the ocean.Here,we present the records of dissolved Fe(DFe)and total Fe(TDFe)in North Greenland Eemian Ice Drilling(NEEM)ice core over the past 110 kyr BP.The Fe records ar