Tuning the Energy Level Offset between Donor and Acceptor with Ferroelectric Dipole Layers for Increased Efficiency in Bilayer Organic Photovoltaic Cells

Tuning the Energy Level Offset between Donor and Acceptor with Ferroelectric Dipole Layers for Increased Efficiency in Bilayer Organic Photovoltaic Cells

Ultrathin ferroelectric polyvinylidene fluoride (70%)‐tetrafluoroethylene (30%) copolymer film is inserted between the poly3(hexylthiophene) (P3HT) donor and [6,6]‐phenyl‐C61‐butyric acid methylester (PCBM) acceptor layers as the dipole layer to tune the relative energy levels, which can potentially...

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Veröffentlicht in:Advanced materials (Weinheim) 2012-03, Vol.24 (11), p.1455-1460
Hauptverfasser: Yang, Bin, Yuan, Yongbo, Sharma, Pankaj, Poddar, Shashi, Korlacki, Rafal, Ducharme, Stephen, Gruverman, Alexei, Saraf, Ravi, Huang, Jinsong
Format: Artikel
Sprache:eng
Schlagworte:
Bone Development
dipole
Electric Power Supplies
Electricity
ferroelectrics
Materials Testing
Membranes, Artificial
open circuit voltage
Organic Chemicals - chemistry
organic photovoltaics
Polymers - chemistry
Semiconductors
Thermodynamics
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Zusammenfassung:Ultrathin ferroelectric polyvinylidene fluoride (70%)‐tetrafluoroethylene (30%) copolymer film is inserted between the poly3(hexylthiophene) (P3HT) donor and [6,6]‐phenyl‐C61‐butyric acid methylester (PCBM) acceptor layers as the dipole layer to tune the relative energy levels, which can potentially maximize the open circuit voltage of bilayer organic solar cells. In this work, the power conversion efficiency of P3HT/PCBM bilayer solar cells is demonstrated to be doubled with the inserted dipoles.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201104509