期刊
ADVANCED ENERGY MATERIALS
卷 7, 期 14, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201602722
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资金
- EU project OSNIRO (FP7-PEOPLE-2013-ITN) [607585]
- EU project SUNFLOWER (FP7-ICT-2011-7) [287594]
- Swedish Research Council
- Swedish Research Council Formas
- Swedish Energy Agency
- Chalmers Area of Advance Energy
- COST Action StableNextSol. [MP1307]
- European Research Council under the European Union's Seventh Framework Programme (FP)/ERC [339031]
- Ministry of Education, Culture, and Science (NWO Gravity program) [024.001.035]
- Knut and Alice Wallenberg foundation
- Crafoord foundation
- International Science Programme (ISP), Uppsala University, Sweden
- People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7) under REA [608743]
To explore the advantages of emerging all-polymer solar cells (all-PSCs), growing efforts have been devoted to developing matched donor and acceptor polymers to outperform fullerene-based PSCs. In this work, a detailed characterization and comparison of all-PSCs using a set of donor and acceptor polymers with both conventional and inverted device structures is performed. A simple method to quantify the actual composition and light harvesting contributions from the individual donor and acceptor is described. Detailed study on the exciton dissociation and charge recombination is carried out by a set of measurements to understand the photocurrent loss. It is unraveled that fine-tuned crystallinity of the acceptor, matched donor and acceptor with complementary absorption and desired energy levels, and device architecture engineering can synergistically boost the performance of all-PSCs. As expected, the PBDTTS-FTAZ:PNDI-T10 all-PSC attains a high and stable power conversion efficiency of 6.9% without obvious efficiency decay in 60 d. This work demonstrates that PNDI-T10 can be a potential alternative acceptor polymer to the widely used acceptor N2200 for high-performance and stable all-PSCs.
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