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

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

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.

Originalsprache	Englisch
Aufsatznummer	123703
Seiten (von - bis)	123703
Seitenumfang	3
Fachzeitschrift	Applied Physics Letters
Volume	98
Ausgabenummer	12
DOIs	https://doi.org/10.1063/1.3571294
Publikationsstatus	Veröffentlicht - 21 März 2011

Wissenschaftszweige

103015 Kondensierte Materie
103 Physik, Astronomie
103008 Experimentalphysik
103023 Polymerphysik
103018 Materialphysik
202036 Sensorik
202022 Informationstechnik

JKU-Schwerpunkte

Nano-, Bio- and Polymer-Systems: From Structure to Function
TNF Allgemein

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10.1063/1.3571294

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AU - Wolf-Brandstetter, C.

AU - Kost, J.

AU - Bauer, Siegfried

AU - Krause, Markus

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