High performance polymeric charge recombination layer for organic tandem solar cells
High performance polymeric charge recombination layer for organic tandem solar cells
复制标题
DOI：
10.1039/c2ee23294d
复制
发表时间：
2012-11
影响因子：
32.5
通讯作者：
Yinhua Zhou;C. Fuentes-Hernandez;J. Shim;Talha M. Khan;B. Kippelen
中科院分区：
文献类型：
--
作者：
Yinhua Zhou;C. Fuentes-Hernandez;J. Shim;Talha M. Khan;B. Kippelen
我们报告倒置聚合物叠层太阳能电池，其中导电聚合物聚（3，4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS），改性在一个界面与乙氧基化聚乙烯亚胺（PEIE），作为一个有效的电荷复合层。该复合层显示出非常低的光吸收，高电导率，以及在其顶部和底部界面之间的1.3eV的大功函数对比度。它的使用产生串联电池，其中开路电压是单个电池的总和。串联连接的串联电池的填充因子被发现是大于单结电池。其简单的聚合物组成和前所未有的性能使其成为新兴有机光伏技术的一个有前途的组件。
We report on inverted polymer tandem solar cells wherein the conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), modified at one interface with ethoxylated polyethylenimine (PEIE), acts as an efficient charge recombination layer. This recombination layer shows very low optical absorption, high electrical conductivity, and a large work function contrast of 1.3 eV between its top and bottom interfaces. Its use yields tandem cells in which the open-circuit voltage is the sum of that of individual cells. The fill factor of tandem cells connected in series is found to be larger than that of single-junction cells. Its simple polymeric composition and its unprecedented performance make it a promising component for emerging organic photovoltaic technologies.