题目：

High Efficiency All-polymer Tandem Solar Cells

作者：

Jianyu Yuan, Jinan Gu, Guozheng Shi, Jianxia Sun, Hai-Qiao Wang and Wanli Ma*

单位：

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University

摘要：

In this work, we have reported for the first time an efficient all-polymer tandem cell using identical subcells based on P2F-DO:N2200. A high power conversion efficiency (PCE) of 6.70% was achieved, which is among the highest efficiencies for all polymer solar cells and 43% larger than the PCE of single junction cell. The largely improved device performance can be mainly attributed to the enhanced absorption of tandem cell. Meanwhile, the carrier collection in device remains efficient by optimizing the recombination layer and sub-cell film thickness. Thus tandem structure can become an easy approach to effectively boost the performance of current all polymer solar cells.

影响因子：

5.578

分区情况：

2区

链接：

http://dx.doi.org/10.1038/srep26459