Optical and Structural Properties of Er3+-doped SiO2-ZrO2 Glass-Ceramic Thin Film

• Published in: Journal of Physics: Conference Series
• Main Author: Kamil S.A.; Zulkepli N.; Nawi I.N.M.; Razaki N.I.; Rahman M.K.A.
• Format: Conference paper
• Language: English
• Published: Institute of Physics Publishing 2019
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077788726&doi=10.1088%2f1742-6596%2f1349%2f1%2f012035&partnerID=40&md5=41b88656aa5200be783a067853eff981

The Er3+-activate dielectric thin film can be applied to produce planar waveguide amplifiers that can be integrated with other active or passive devices on the same chip. However, Er3+ tend to cluster in host material especially in silica when doped at high concentration. This issue can be overcome by introducing Z1O2 as a co-host material in a silica glass matrix by helping to disperse Er3+ homogeneously and consequently enhance the output intensity. In this work, we present a study on 70SiO2-30ZrO2 glass ceramic doped with a various concentration of Er3+ prepared by the sol-gel dip coating technique and each film obtained were annealed at 900°C. Full film densification was achieved for the deposited film, which indicates the hydroxyl group was successfully removed as shown in Raman spectra. Refractive index of the film increase with the increment of rare earth ion and this permit the guiding of light in the film. Red and green emissions of Er3+ were detected upon 514.5 nm excitation. Nevertheless, the presence of higher Er3+ (0.58 mol%) induces concentration quenching phenomena as shown in the PL spectra where there is a decline in green emission peak. © Published under licence by IOP Publishing Ltd.