Optical studies in Cr-doped beta-Ga2O3, ZnGa2O4, and Zn1-xGa2-2xGexO4

M. Batista; S. O. Pereira; M. S. Relvas; M. Brás; N. Ben Sedrine; J. Rodrigues; M. R. Correia; F. M. Costa; T. Monteiro

doi:10.1117/12.2591310

5 March 2021 Optical studies in Cr-doped β-Ga₂O₃, ZnGa₂O₄, and Zn_1-xGa_2-2xGe_xO₄

M. Batista, S. O. Pereira, M. S. Relvas, M. Brás, N. Ben Sedrine, J. Rodrigues, M. R. Correia, F. M. Costa, T. Monteiro

Proceedings Volume 11687, Oxide-based Materials and Devices XII; 116870O (2021) https://doi.org/10.1117/12.2591310
Event: SPIE OPTO, 2021, Online Only

Abstract

Wide and ultrawide bandgap oxides, such as β-Ga2O3, ZnGa2O4 and Zn1-xGa2-2xGexO4, are of particular importance for a myriad of technological applications, including electronics, optoelectronics, and medical devices. In the case of the latter, the development of new, affordable and non-invasive methodologies for bioimaging and diagnosis is of crucial importance towards solutions that can improve health and wellbeing of the populations. For these purposes, red/near infrared emitters within the biological transparency window are required. Therefore, the here studied oxides were subjected to a controlled Cr-doping giving rise to intraionic emission in this region. In the case of the here studied oxide systems, we will investigate the intraionic luminescence properties of Cr3+, with particular emphasis on the persistent luminescence recorded in micro/nano particles of Cr-doped ZnGa2O4 and Zn1-xGa2-2xGexO4 synthesised by laser ablation in liquid media.

Conference Presentation

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M. Batista, S. O. Pereira, M. S. Relvas, M. Brás, N. Ben Sedrine, J. Rodrigues, M. R. Correia, F. M. Costa, and T. Monteiro "Optical studies in Cr-doped β-Ga₂O₃, ZnGa₂O₄, and Zn_1-xGa_2-2xGe_xO₄", Proc. SPIE 11687, Oxide-based Materials and Devices XII, 116870O (5 March 2021); https://doi.org/10.1117/12.2591310

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