结晶诱导的高效率三元体系有机太阳能电池
详细信息 查看官网全文
- 英文论文题名：Induced crystallinity leads to high efficient ternary organic solar cells
- 论文作者：魏志祥
- 英文论文作者：Zhixiang Wei ; National Center for Nanoscience and Technology
- 年：2016
- 作者机构：国家纳米科学中心;
- 论文关键词：有机太阳能电池 ; 三元体系 ; 诱导结晶
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十二分会：有机光伏的机遇和挑战
- 语种：中文
- 分类号：TM914.4
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十二分会 ; 有机光伏的机遇和挑战
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：203k
- 原文格式：D
- 会议级别：全国
摘要
有机太阳能电池一般利用电子给体与受体的二元共混体系作为活性层,三元体系利用两种不同的给体材料与富勒烯受体(或一种给体与两种受体)共混作为活性层,两种给体材料通过协同效应拓宽活性层的吸光利用范围、优化活性层的形貌结构,有望大幅度提升有机太阳能电池的器件性能。我们将一种高迁移率、高结晶性的光伏小分子引入到聚合物与富勒烯衍生物的二元体系中,通过小分子的诱导结晶,使得薄膜的结晶性和微相分离结构发生了明显改善,器件能量转换效率达到了8.4%。共轭小分子和聚合物在三元体系中体现出协同效应,通过改变有共轭分子和聚合物的比例,可以连续调控活性层的结晶性和相分离尺度,使得该三元体系具有巨大的发展和提升空间。最近,通过该三元体系的优化,我们得到了超过10%的器件效率,显示出巨大的发展潜力。
Organic solar cells use binary system as their active layers, which generally contain one kind of conjugated polymers or small molecules as a donor, and one kind of fullerene derivatives as an acceptor. Ternary organic solar cells use two kinds of donor materials with complimentary properties and one fullerene acceptor as the active layer. In this talk, a new ternary OSC is designed and fabricated, which contains a D–A-type polymer and a novel small molecule. Synergistic effect of small molecules and polymers was observed, such as modifying film morphology and improving charge carrier mobility. As a result, the PCE of the ternary OSCs(8.40%) is higher than that of binary systems based on small molecules or polymers. Recently, our best cells was sent to an accredited solar cell calibration laboratory for certification, confirming an efficiency higher than 10%.
Organic solar cells use binary system as their active layers, which generally contain one kind of conjugated polymers or small molecules as a donor, and one kind of fullerene derivatives as an acceptor. Ternary organic solar cells use two kinds of donor materials with complimentary properties and one fullerene acceptor as the active layer. In this talk, a new ternary OSC is designed and fabricated, which contains a D–A-type polymer and a novel small molecule. Synergistic effect of small molecules and polymers was observed, such as modifying film morphology and improving charge carrier mobility. As a result, the PCE of the ternary OSCs(8.40%) is higher than that of binary systems based on small molecules or polymers. Recently, our best cells was sent to an accredited solar cell calibration laboratory for certification, confirming an efficiency higher than 10%.
引文
[1]Y.J.Zhang,D.Deng,K.Lu,J.Q.Zhang,B.Z.Xia,Y.F.Zhao,J.Fang,Z.X.Wei,Adv.Mater.2015,27,1071.
[2]J.Q.Zhang,Y.J.Zhang,J.Fang,K.Lu,Z.Y.Wang,W.Ma,and Z.X.Wei,J.Am.Chem.Soc.,2015,137,8176.
[2]J.Q.Zhang,Y.J.Zhang,J.Fang,K.Lu,Z.Y.Wang,W.Ma,and Z.X.Wei,J.Am.Chem.Soc.,2015,137,8176.