Surface nanostructure effects on optical properties of Pb(Zr x Ti1-x )O3 thin films

J Puustinen (Corresponding Author), J Lappalainen, Jussi Hiltunen, Marianne Hiltunen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Optical scattering properties of nanostructured matter have crucial impact on performance efficiency of various photonic components, such as waveguides, display elements, and solar cells. In this paper, diffuse transmission properties of nanocrystalline Pb(Zr x Ti1-x )O3 thin films with a high refractive index of ~2.5 and optical transmittance are presented. Thin films with a thicknesses ranging from 50 to 500 nm were studied using integrating sphere technique and results were compared to simulations performed by a scalar scattering theory. Thin films were deposited by pulsed laser deposition at room temperature on MgO(100) substrates and post-annealed at a temperature of 800°C. Structural phase evolution-induced surface effects, which introduced periodicity on the film surface, cause the definite diffuse elements in transmission spectra of the films. Low and evenly distributed scattering amplitudes in k-space were seen for highly tetragonal- or trigonal-oriented films with non-textured surfaces, which led to low diffuse transmission values (T D ~ 5 %), while confined and increased scattering amplitudes in k-space were seen for tetragonal-trigonal-oriented films, with phase co-existence, which led to microstructure-induced textured surfaces and increased diffuse transmission values (T D ~ 50 %). For highly textured surfaces, scattering amplitudes distributed in tilted ellipsoid shape in k-space was observed. Difference between modeled and measured values was 3.8 % in maximum
Original languageEnglish
Pages (from-to)379-387
Number of pages8
JournalApplied Physics A: Materials Science and Processing
Volume116
Issue number1
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

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Nanostructures
Optical properties
Scattering
optical properties
Thin films
scattering amplitude
thin films
Surface scattering
Opacity
Pulsed laser deposition
Photonics
Refractive index
Solar cells
ellipsoids
Waveguides
scattering
Display devices
pulsed laser deposition
periodic variations
transmittance

Cite this

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title = "Surface nanostructure effects on optical properties of Pb(Zr x Ti1-x )O3 thin films",
abstract = "Optical scattering properties of nanostructured matter have crucial impact on performance efficiency of various photonic components, such as waveguides, display elements, and solar cells. In this paper, diffuse transmission properties of nanocrystalline Pb(Zr x Ti1-x )O3 thin films with a high refractive index of ~2.5 and optical transmittance are presented. Thin films with a thicknesses ranging from 50 to 500 nm were studied using integrating sphere technique and results were compared to simulations performed by a scalar scattering theory. Thin films were deposited by pulsed laser deposition at room temperature on MgO(100) substrates and post-annealed at a temperature of 800°C. Structural phase evolution-induced surface effects, which introduced periodicity on the film surface, cause the definite diffuse elements in transmission spectra of the films. Low and evenly distributed scattering amplitudes in k-space were seen for highly tetragonal- or trigonal-oriented films with non-textured surfaces, which led to low diffuse transmission values (T D ~ 5 {\%}), while confined and increased scattering amplitudes in k-space were seen for tetragonal-trigonal-oriented films, with phase co-existence, which led to microstructure-induced textured surfaces and increased diffuse transmission values (T D ~ 50 {\%}). For highly textured surfaces, scattering amplitudes distributed in tilted ellipsoid shape in k-space was observed. Difference between modeled and measured values was 3.8 {\%} in maximum",
author = "J Puustinen and J Lappalainen and Jussi Hiltunen and Marianne Hiltunen",
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language = "English",
volume = "116",
pages = "379--387",
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Surface nanostructure effects on optical properties of Pb(Zr x Ti1-x )O3 thin films. / Puustinen, J (Corresponding Author); Lappalainen, J; Hiltunen, Jussi; Hiltunen, Marianne.

In: Applied Physics A: Materials Science and Processing, Vol. 116, No. 1, 2014, p. 379-387.

Research output: Contribution to journalArticleScientificpeer-review

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PY - 2014

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AB - Optical scattering properties of nanostructured matter have crucial impact on performance efficiency of various photonic components, such as waveguides, display elements, and solar cells. In this paper, diffuse transmission properties of nanocrystalline Pb(Zr x Ti1-x )O3 thin films with a high refractive index of ~2.5 and optical transmittance are presented. Thin films with a thicknesses ranging from 50 to 500 nm were studied using integrating sphere technique and results were compared to simulations performed by a scalar scattering theory. Thin films were deposited by pulsed laser deposition at room temperature on MgO(100) substrates and post-annealed at a temperature of 800°C. Structural phase evolution-induced surface effects, which introduced periodicity on the film surface, cause the definite diffuse elements in transmission spectra of the films. Low and evenly distributed scattering amplitudes in k-space were seen for highly tetragonal- or trigonal-oriented films with non-textured surfaces, which led to low diffuse transmission values (T D ~ 5 %), while confined and increased scattering amplitudes in k-space were seen for tetragonal-trigonal-oriented films, with phase co-existence, which led to microstructure-induced textured surfaces and increased diffuse transmission values (T D ~ 50 %). For highly textured surfaces, scattering amplitudes distributed in tilted ellipsoid shape in k-space was observed. Difference between modeled and measured values was 3.8 % in maximum

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