Ferroelectric coupling effect on the energy-band structure of hybrid heterojunctions with self-organized P(VDF-TrFE) nanomatrices

Seongmin Kim, Kyung Sik Shin, Tae Yun Kim, Gyu Cheol Yoon, Manoj Kumar Gupta, Sung Kyun Kim, Wanchul Seung, Hyeok Kim, Sungjin Kim, Sang Woo Kim

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)5619-5625
Number of pages7
JournalAdvanced Materials
Volume26
Issue number32
DOIs
Publication statusPublished - 2014 Aug 27

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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