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  4. Vertical convective coassembly of refractory ysz inverse opals from crystalline nanoparticles
 
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Vertical convective coassembly of refractory ysz inverse opals from crystalline nanoparticles

Publikationstyp
Journal Article
Date Issued
2013-12-09
Sprache
English
Author(s)
Kubrin, Roman  
Rosário, Jefferson J. do  
Lee, Hooi Sing  
Mohanty, Sweety  
Subrahmanyam, Raman  
Smirnova, Irina  orcid-logo
Petrov, Alexey  
Petrov, Alexander  orcid-logo
Eich, Manfred  
Schneider, Gerold A.  
Institut
Keramische Hochleistungswerkstoffe M-9  
Optische und Elektronische Materialien E-12  
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/5782
Journal
ACS applied materials & interfaces  
Volume
5
Issue
24
Start Page
13146
End Page
13152
Citation
ACS Applied Materials and Interfaces 24 (5): 13146-13152 (2013)
Publisher DOI
10.1021/am404180y
Scopus ID
2-s2.0-84891438879
Publisher
American Chemical Society
A facile deposition method of 3D photonic crystals made of yttrium-stabilized zirconia (YSZ) was developed. YSZ nanoparticles with primary particle size below 10 nm and cubic crystalline phase were synthesized by hydrothermal treatment of solutions of zirconyl nitrate, yttrium nitrate and acetylacetone. Before coassembly with polystyrene (PS) microspheres, a dispersant Dolapix CE64 was added to the dialyzed sol of YSZ nanoparticles to render their surface negatively charged. Vertical convective coassembly resulted in 3D ordered YSZ/PS hybrid films, which were inverted at 500 C in air to produce inverse opals. The linear shrinkage of the coatings was in the range 15-20%, below previously reported values for YSZ. The obtained coatings demonstrated pronounced photonic properties and retained their ordered structure after annealing at 1000 C for 2 h. Increasing the filling fraction of crystalline nanoparticles in the templates should enable production of fully functional 3D photonic crystals for applications in high-temperature photonics. © 2013 American Chemical Society.
Subjects
3D photonic crystal
High-temperature photonics
Inverse opal
Nanoparticle codeposition
Vertical convective self-assembly
Yttrium-stabilized zirconia
DDC Class
540: Chemie
Funding(s)
SFB 986: Teilprojekt C2 - Keramikbasierte hochtemperaturstabile Wärmestrahlungsreflektoren und Strukturfarben  
SFB 986: Teilprojekt C4 - Deposition, Ordnung und mechanische Stabilität von Beschichtungen aus assemblierten Partikeln mit enger Größenverteilung  
SFB 986: Teilprojekt C5 - Oxidische Hochtemperatur-Schutzschichtsysteme mittels angepasster Porenstruktur  
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