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Article

Hydroxyl-Quenching Effects on the Photoluminescence Properties of SnO₂:Eu³⁺ Nanoparticles

Taeho Moon, Sun-Tae Hwang, Dae-Ryong Jung, Dongyeon Son, Chunjoong Kim, Jongmin Kim, Myunggoo Kang, and Byungwoo Park*

Department of Materials Science and Engineering, and Research Center for Energy Conversion and Storage, Seoul National University, Seoul 151-744, Korea

J. Phys. Chem. C, 2007, 111 (11), pp 4164–4167

DOI: 10.1021/jp067217l

Publication Date (Web): March 1, 2007

Corresponding author. E-mail: byungwoo@snu.ac.kr.

Abstract

The effects of hydroxyl quenching were examined on the photoluminescence properties of SnO₂:Eu³⁺ nanoparticles. High-quality SnO₂:Eu³⁺ nanoparticles were simply synthesized from SnCl₄, EuCl₃, and ethylene glycol. The photoluminescence spectra showed a reddish orange emission, which gradually increased with the calcination temperature in the range from 700 to 1000 °C. As the calcination temperature varied, the change of the OH^-/O^2- integrated-intensity ratios from X-ray photoelectron spectroscopy (XPS) was qualitatively consistent with that of the photoluminescence intensities. The samples obtained after the hydrothermal treatment and after reheating, respectively, exhibited a decline and recovery of their emission intensities, and this behavior with XPS confirmed the hydroxyl-quenching effect.

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Published In Issue March 22, 2007
Received November 1, 2006
Revised January 20, 2007

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Article

Hydroxyl-Quenching Effects on the Photoluminescence Properties of SnO₂:Eu³⁺ Nanoparticles