Pyroelectric, piezoelectric, and photoeffects in hydroxyapatite thin films on silicon

S. B. Lang; S. A. M. Tofail; A. A. Gandhi; M. Gregor; C. Wolf-Brandstetter; J. Kost; Siegfried Bauer; Markus Krause

doi:10.1063/1.3571294

Pyroelectric, piezoelectric, and photoeffects in hydroxyapatite thin films on silicon

S. B. Lang, S. A. M. Tofail, A. A. Gandhi, M. Gregor, C. Wolf-Brandstetter, J. Kost, Siegfried Bauer, Markus Krause

Research output: Contribution to journal › Article › peer-review

Abstract

Hydroxyapatite HA is the major component of bone and is used in artificial form in many biomedical applications. It was once believed to have a centrosymmetric crystal structure. In theoretical and experimental studies published in 2005, it was shown to have a monoclinic P21 structure. In the work reported here, 500 nm films of HA were spin-coated on silicon wafers. The materials were not poled. They had a nonuniform polarization distribution and exhibited pyroelectricity, piezoelectricity, and photoeffects. Structures of this type may have a number of technological applications.

Original language	English
Article number	123703
Pages (from-to)	123703
Number of pages	3
Journal	Applied Physics Letters
Volume	98
Issue number	12
DOIs	https://doi.org/10.1063/1.3571294
Publication status	Published - 2011

Fields of science

103015 Condensed matter
103 Physics, Astronomy
103008 Experimental physics
103023 Polymer physics
103018 Materials physics
202036 Sensor systems
202022 Information technology

JKU Focus areas

Nano-, Bio- and Polymer-Systems: From Structure to Function
Engineering and Natural Sciences (in general)

Access to Document

10.1063/1.3571294

Cite this

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abstract = "Hydroxyapatite HA is the major component of bone and is used in artificial form in many biomedical applications. It was once believed to have a centrosymmetric crystal structure. In theoretical and experimental studies published in 2005, it was shown to have a monoclinic P21 structure. In the work reported here, 500 nm films of HA were spin-coated on silicon wafers. The materials were not poled. They had a nonuniform polarization distribution and exhibited pyroelectricity, piezoelectricity, and photoeffects. Structures of this type may have a number of technological applications.",

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AU - Lang, S. B.

AU - Tofail, S. A. M.

AU - Gandhi, A. A.

AU - Gregor, M.

AU - Wolf-Brandstetter, C.

AU - Kost, J.

AU - Bauer, Siegfried

AU - Krause, Markus

PY - 2011

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N2 - Hydroxyapatite HA is the major component of bone and is used in artificial form in many biomedical applications. It was once believed to have a centrosymmetric crystal structure. In theoretical and experimental studies published in 2005, it was shown to have a monoclinic P21 structure. In the work reported here, 500 nm films of HA were spin-coated on silicon wafers. The materials were not poled. They had a nonuniform polarization distribution and exhibited pyroelectricity, piezoelectricity, and photoeffects. Structures of this type may have a number of technological applications.

AB - Hydroxyapatite HA is the major component of bone and is used in artificial form in many biomedical applications. It was once believed to have a centrosymmetric crystal structure. In theoretical and experimental studies published in 2005, it was shown to have a monoclinic P21 structure. In the work reported here, 500 nm films of HA were spin-coated on silicon wafers. The materials were not poled. They had a nonuniform polarization distribution and exhibited pyroelectricity, piezoelectricity, and photoeffects. Structures of this type may have a number of technological applications.

U2 - 10.1063/1.3571294

DO - 10.1063/1.3571294

M3 - Article

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