Liang, Y.; Chen, H.; Dong, D.; Guo, J.; Du, X.; Bian, T.; Zhang, F.; Wu, Z.; Zhang, Y. The Impact of the Amorphous-to-Crystalline Transition on the Upconversion Luminescence in Er3+-Doped Ga2O3 Thin Films. Energies2024, 17, 1397.
Liang, Y.; Chen, H.; Dong, D.; Guo, J.; Du, X.; Bian, T.; Zhang, F.; Wu, Z.; Zhang, Y. The Impact of the Amorphous-to-Crystalline Transition on the Upconversion Luminescence in Er3+-Doped Ga2O3 Thin Films. Energies 2024, 17, 1397.
Liang, Y.; Chen, H.; Dong, D.; Guo, J.; Du, X.; Bian, T.; Zhang, F.; Wu, Z.; Zhang, Y. The Impact of the Amorphous-to-Crystalline Transition on the Upconversion Luminescence in Er3+-Doped Ga2O3 Thin Films. Energies2024, 17, 1397.
Liang, Y.; Chen, H.; Dong, D.; Guo, J.; Du, X.; Bian, T.; Zhang, F.; Wu, Z.; Zhang, Y. The Impact of the Amorphous-to-Crystalline Transition on the Upconversion Luminescence in Er3+-Doped Ga2O3 Thin Films. Energies 2024, 17, 1397.
Abstract
Gallium oxide (Ga2O3) is an emerging wide bandgap semiconductor promising a wide range of important applications. However, mass production of high-quality crystalline Ga2O3 still suffers from limitations associated with poor reproducibility and low efficiency. Low-temperature grown amorphous Ga2O3 demonstrates comparable performance with its crystalline counterparts. Lanthanide Er3+-doped Ga2O3 (Ga2O3: Er) possesses great potential for developing light-emitting devices, photodetectors and optical waveguides. The host circumstance can exert a crystal field around the lanthanide dopants and strongly influence their photoluminescence properties. Here we present a systematical study of the impact of amorphous-to-crystalline transition on the upconversion photoluminescence in Ga2O3: Er thin films. Through controlling the growth temperature of Ga2O3: Er films, the upconversion luminescence of as-grown thin films are strongly enhanced over 100 times. Moreover, the variation of photoluminescence reflects the amorphous-to-crystalline transformation of the Ga2O3: Er thin films. These results will aid further design of favorable optoelectronic devices integrated with lanthanide-doped Ga2O3 thin films.
Chemistry and Materials Science, Electronic, Optical and Magnetic Materials
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