High-Efficiency All-Polymer Solar Cells Based on a Pair of Crystalline Low-Bandgap Polymers

High-Efficiency All-Polymer Solar Cells Based on a Pair of Crystalline Low-Bandgap Polymers

All‐polymer solar cells based on a pair of crystalline low‐bandgap polymers (NT and N2200) are demonstrated to achieve a high short‐circuit current density of 11.5 mA cm−2 and a power conversion efficiency of up to 5.0% under the standard AM1.5G spectrum with one sun intensity. The high performance...

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Veröffentlicht in:Advanced materials (Weinheim) 2014-11, Vol.26 (42), p.7224-7230
Hauptverfasser: Mu, Cheng, Liu, Peng, Ma, Wei, Jiang, Kui, Zhao, Jingbo, Zhang, Kai, Chen, Zhihua, Wei, Zhanhua, Yi, Ya, Wang, Jiannong, Yang, Shihe, Huang, Fei, Facchetti, Antonio, Ade, Harald, Yan, He
Format: Artikel
Sprache:eng
Schlagworte:
all polymer solar cell
Balancing
Crystal structure
domain size
Energy conversion efficiency
low bandgap polymer
Photovoltaic cells
Polymer blends
Polymers
resonant soft X-ray scattering
Solar cells
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Zusammenfassung:All‐polymer solar cells based on a pair of crystalline low‐bandgap polymers (NT and N2200) are demonstrated to achieve a high short‐circuit current density of 11.5 mA cm−2 and a power conversion efficiency of up to 5.0% under the standard AM1.5G spectrum with one sun intensity. The high performance of these NT:N2200‐based cells can be attributed to the low optical bandgaps of the polymers and the reasonably high and balanced electron and hole mobilities of the NT:N2200 blends due to the crystalline nature of the two polymers.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201402473