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Ferroelectric Coupling Effect on the Energy‐Band Structure of Hybrid Heterojunctions with Self‐Organized P(VDF‐TrFE) Nanomatrices
Author(s) -
Shin KyungSik,
Kim Tae Yun,
Yoon Gyu Cheol,
Gupta Manoj Kumar,
Kim Sung Kyun,
Seung Wanchul,
Kim Hyeok,
Kim Sungjin,
Kim SeongMin,
Kim SangWoo
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201400405
Subject(s) - materials science , ferroelectricity , heterojunction , optoelectronics , photovoltaic system , photovoltaic effect , hybrid material , polarization (electrochemistry) , band gap , nanotechnology , dielectric , chemistry , ecology , biology
Ferroelectric coupling effects on the energy‐band structure of hybrid heterojunctions are investigated using hybrid photovoltaic devices with poly(3‐hexylthiophene‐2,5‐diyl) (P3HT)/ZnO and poly(vinylidene fluoride‐trifluoroethylene) (P(VDF‐TrFE)). The self‐organized P(VDF‐TrFE):P3HT photoactive layer forms a novel architecture consisting of P3HT domains in a P(VDF‐TrFE) matrix. The energy‐band structure at the interface of the p–n heterojunction is tuned by artificial control of the ferroelectric polarization of the P(VDF‐TrFE) material, consequently modulating the photovoltaic performance of the hybrid photovoltaic devices.