不同制备条件下ZnO:<i>X</i>%Eu的光电特性研究

doi:10.11896/cldb.24040188

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Abstract Synthesis of europium (Eu) doped zinc oxide (ZnO) samples was achieved using a hydrothermal method under various preparation conditions. The structural, morphological, and performance characteristics of the samples were characterized and analyzed using XRD, SEM, EDS, Raman, XPS, PL, and I-V techniques. The results indicate that the crystallinity of the 5% europium-doped sample is good, and the powder grains exhibit pinecone-like shapes at different annealing temperatures (600, 800, 1 000 ℃). The actual ratio of europium ions to zinc ions is close to the theoretical value. Raman and XPS spectra show that trivalent europium ions are incorporated into the ZnO lattice, leading to changes in the atomic optical phonon vibration modes of ZnO. The PL spectrum reveals the strongest fluorescence emission at 618 nm, with the optimal doping molar concentration being 5%. The I-V curve demonstrates that the resistivity of undoped zinc oxide powder and ZnO:9%Eu powder in the range of -5 to 5 V is approximately 3.8×10¹⁰ Ω·cm and 1.11×10⁹ Ω·cm, respectively. While the resistivity of ZnO:1%Eu and ZnO:5%Eu powders varies within different voltage ranges:in the range of -5 to 0 V, the conductivity shows an approximately linear relationship, with resistivity values of about 1.41×10⁸ and 1.21×10⁸ Ω·cm, respectively; in the range of 0 to 5 V, the conductivity drops to zero. These experimental results reflect the variations in the conductivity mechanism of samples doped with different concentrations of europium, providing valuable insights for the application of materials in optoelectronic devices.

Key words： hydrothermal method ZnO:Eu³⁺ fluorescence luminescence I-V characteristics

Published: 25 May 2025 Online: 2025-05-13

CLC number:

O469

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	Articles by authors
	LIANG Ping
	XIA Ziwen
	FENG Yang
	YANG Weiye
	PENG Hongyan
	ZHAO Shihua

Cite this article:

LIANG Ping,XIA Ziwen,FENG Yang, et al. Photoelectric Characterization of ZnO:X%Eu Under Different Preparation Conditions[J]. Materials Reports, 2025, 39(10): 24040188-6.

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https://www.mater-rep.com/EN/10.11896/cldb.24040188 OR https://www.mater-rep.com/EN/Y2025/V39/I10/24040188

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