Communication: Advanced Optical Materials

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Spatially Resolved Photodetection in Leaky Ferroelectric BiFeO3

  1. Won-Mo Lee2,
  2. Ji Ho Sung2,
  3. Kanghyun Chu3,
  4. Xavier Moya4,
  5. Donghun Lee2,
  6. Cheol-Joo Kim2,
  7. Neil D. Mathur4,
  8. S.-W. Cheong5,
  9. C.-H. Yang6,
  10. Moon-Ho Jo1,*

Article first published online: 27 JAN 2012

DOI: 10.1002/adma.201102816

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 10, pages OP49–OP53, March 8, 2012

Additional Information

How to Cite

Lee, W.-M., Sung, J. H., Chu, K., Moya, X., Lee, D., Kim, C.-J., Mathur, N. D., Cheong, S.-W., Yang, C.-H. and Jo, M.-H. (2012), Spatially Resolved Photodetection in Leaky Ferroelectric BiFeO3. Adv. Mater., 24: OP49–OP53. doi: 10.1002/adma.201102816

Author Information

  1. 1

    Department of Materials Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam Gu, Pohang, Gyungbuk, 790-784, Korea

  2. 2

    Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam Gu, Pohang, Gyungbuk, 790-784, Korea

  3. 3

    Department of Physics, KAIST, Daejeon, 305-701, Korea

  4. 4

    Department of Materials Science, University of Cambridge, Cambridge CB2 3QZ, UK

  5. 5

    Rutgers Center for Emergent Materials, Department of Physics & Astronomy, Rutgers University, Piscataway, NJ, USA and Laboratory for Pohang Emergent Materials, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam Gu, Pohang, Gyungbuk, 790-784, Korea

  6. 6

    Department of Physics and KAIST Institute for the NanoCentury, KAIST, Yuseong-gu, Daejeon, 305-701, Korea

*Department of Materials Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam Gu, Pohang, Gyungbuk, 790-784, Korea.

Publication History

  1. Issue published online: 6 MAR 2012
  2. Article first published online: 27 JAN 2012
  3. Manuscript Received: 22 JUL 2011

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Keywords:

  • ferroelectric photovoltaics;
  • mutiferroics;
  • oxide photonics;
  • photodetectors
Thumbnail image of graphical abstract

Potential gradients due to the spontaneous polarization of BiFeO3 yield asymmetric and nonlinear photocarrier dynamics. Photocurrent direction is determined by local ferroelectric domain orientation, whereas magnitude is spectrally centered around charged domain walls that are associated with oxygen vacancy migration. Photodetection can be electrically controlled by manipulating ferroelectric domain configurations.

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