Charge Transfer Excitation of Eu3+ with Two-sites in Nanocrystal Gd2O3：Eu3+

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Charge Transfer Excitation of Eu³⁺ with Two-sites in Nanocrystal Gd₂O₃：Eu³⁺

更新时间：2020-08-11

- Charge Transfer Excitation of Eu³⁺ with Two-sites in Nanocrystal Gd₂O₃：Eu³⁺
- Chinese Journal of Luminescence Vol. 25, Issue 2, Pages: 193-196(2004)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 激发态物理重点实验室, 吉林, 长春, 130033
  2. 长春职业技术学院, 吉林, 长春, 130021
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：05 October 2003，
  
  Revised：24 December 2003，
  
  Published：20 March 2004
- 稿件说明：
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刘春旭, 张家骅, 吕少哲, 刘俊业, 花景田. 纳米Gd2O3中两种格位Eu3+的电荷迁移态激发跃迁[J]. 发光学报, 2004,25(2): 193-196

LIU Chun-xu, ZHANG Jia-hua, LÜ Shao-zhe, LIU Jun-ye, HUA Jing-tian. Charge Transfer Excitation of Eu3+ with Two-sites in Nanocrystal Gd2O3：Eu3+[J]. Chinese Journal of Luminescence, 2004,25(2): 193-196
刘春旭, 张家骅, 吕少哲, 刘俊业, 花景田. 纳米Gd2O3中两种格位Eu3+的电荷迁移态激发跃迁[J]. 发光学报, 2004,25(2): 193-196 DOI：

LIU Chun-xu, ZHANG Jia-hua, LÜ Shao-zhe, LIU Jun-ye, HUA Jing-tian. Charge Transfer Excitation of Eu3+ with Two-sites in Nanocrystal Gd2O3：Eu3+[J]. Chinese Journal of Luminescence, 2004,25(2): 193-196 DOI：

摘要

观测了粒径分别为15

135nm的立方相Gd

:Eu

的选择激发光谱、发射光谱和激发光谱.受强量子限域效应的影响

纳米Gd

:Eu

的激发光谱的强度表现出对颗粒尺寸的明显依赖性.用Jorgensen公式计算电荷迁移带的位置

与实验测得激发光谱中位置相一致.通过电荷迁移带不同位置的选择激发光谱可以分辨出立方相Gd

:Eu

中C

和S

格位Eu

的发光

从选择激发的发射光谱和激发光谱结果计算出C

和S

格位电荷迁移带的激发光谱

与实验结果相符合.

Abstract

This paper reports the site-selective excited emission

fluorescence and photoluminescence excitation spectroscopy of cubic Gd

:Eu

nanocrystals with diameters of 15

135 nm.The intensity distribution of photoluminescence spectra of Gd

:Eu

nanocrystal depends on the size of nanocrystal

as a result of strong quantum confinement effect.The position of charge transfer band(CTB)calculated by Jorgensen formula is consistent with the experiment results.The emission peaks of C

and S

sites Eu

in cubic Gd

:Eu

are dissolved by the site-selective spectra excited with wavelengths in the CTB.The photoluminescence excitation spectra of C

and S

sitesEu

CTB are worked out through the site-selective excitation spectra and photoluminescence excitation spectra.Itagrees well with the experiment results.

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Related Institution

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