Abstract:
The polar molecules, including ferroelectric materials with large dipole moments, have been applied as interfacial layers to increase the efficiency of organic solar cell...Show MoreMetadata
Abstract:
The polar molecules, including ferroelectric materials with large dipole moments, have been applied as interfacial layers to increase the efficiency of organic solar cells by increasing the bounded charge separation, tuning the energy levels, etc. Here, we report a small polar molecule 2-cyano-3-(4-(diphenylamino) phenyl)acrylic acid (TPACA) that can be either blended in the active layer or at the polymer/electrode interface to increase the efficiency of organic solar cell devices after poling. It is found that the built-in potential of the device is increased by 0.2 V after poling under negative bias. Blending TPACA into the active layer has shown to be a universal method to increase the efficiency of polymer solar cells. The efficiency is increased by 30-90% for all the polymer:fullerene systems tested, with the highest efficiency reaching 7.83% for the poly [4,8-bis-(2-ethyl-hexyl-thiophene-5-yl)-benzo[1,2-b:4,5-b ']dithiophene-2,6-diyl]-alt-[2-(2'-ethyl-hexanoyl)-thieno [3,4-b]thiophen-4,6-diyl]: [6,6]-phenyl-C71 -butyric acid methyl ester (PBDTTT-CT:PC70BM) system.
Published in: IEEE Journal of Photovoltaics ( Volume: 5, Issue: 5, September 2015)
Funding Agency:
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
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Authors’ photographs and biographies are not available at the time of publication.View more
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, China
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
College of Materials Science and Opto-electronic Technology, University of Chinese Academy of Sciences, Beijing, China
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
Contents Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, China
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
College of Materials Science and Opto-electronic Technology, University of Chinese Academy of Sciences, Beijing, China
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
Department of Mechanical and Materials Engineering, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA
Authors’ photographs and biographies are not available at the time of publication.
Authors’ photographs and biographies are not available at the time of publication.View more
