Effect of Glymo on the Morphological and Optical Properties of Eu3+-Doped Lu2SiO5 Films

Eu3+-(5% mol)-doped Lu2SiO5 optical quality films were prepared using the sol–gel method and dip-coating technique from lutetium europium salts as lanthanide precursors tetraethyl orthosilicate (TEOS) silicon source. To increase thickness of films, 3-Glycidyloxypropyl trimethoxysilane (Glymo) was added rheological agent during sol formation. Structural, morphological, luminescent properties investigated for Lu2SiO5, Eu3+:Lu2SiO5, Eu3+:Lu2SiO5/Glymo in order to obtain high films. X-ray diffraction (XRD) results show that incorporation Eu3+ ions do not affect A-Type B-Type monoclinic crystalline phase typical even after five dipping cycles on quartz substrates a final annealing process at 1100 °C. The morphology topography studied by SEM AFM. These techniques revealed without surfactant uniform with low rugosity while film presented porous hills valleys uneven values roughness. photoluminescence spectrum Eu3+:Lu2SiO5 showed 2 broad emission peaks centered 589 nm 612 nm. presence Glymo system promoted formation residual Lu2Si2O7 compounds highest lifetime compared surfactant. are promising applications.