Sol-gel route has been successfully achieved to obtain pure Y3Al5O12 and Y3Al5O12:Eu3+ powders and films. Advanced YAG coatings were achieved by two techniques, the spray and dip-coating methods, giving rise to different characteristics and properties. The materials structure and microstructure were analyzed by means of X-ray diffraction and scanning electron microscopy. It has been shown that sol-gel processed YAG powders crystallize around 900°C whereas a temperature much higher is necessary to obtain this compound by solid state synthesis (≈ 1500°C). Additionally the surface of the films was observed by atomic force microscopy. Eventually, laser induced luminescence spectra, as well as luminescence decays of Eu3+ ions show undoubtedly the spectral features of a Eu3+ emitting centre embedded in a unique site of D2 symmetry.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.