High‐Efficiency All‐Polymer Solar Cells Based on a Pair of Crystalline Low‐Bandgap Polymers
- 19 September 2014
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 26 (42) , 7224-7230
Abstract
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.Keywords
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