-
用高温熔融法制备了系列Er3+/Yb3+共掺，Ho3+/Yb3+共掺，和Er3+/Yb3+/Ho3+三掺碲酸盐玻璃，在975nm激光抽运下三种掺杂玻璃中都出现了较强的绿光和红光上转换.研究了Yb3+离子对Er3+和Ho3+离子上转换发光强度的影响以及Yb3+→Er
-
关键词:
- Er3+/Yb3+/Ho3+共掺 /
- 碲酸盐玻璃 /
- 光谱性质 /
- 上转换
A series of Er3+/Yb3+-codoped，Ho3+/Yb3+-codoped，and Er3+/Yb3+/Ho3+-triply doped tellurite glasses were prepared by high-temperature melting. Under 975nm laser light excitation，intense green and red upconversion luminescence was observed in all the three kinds of codoped tellurite glasses. The influence of Yb3+ ions on the upconversion emission properties of Er3+ and Ho3+ ions was investigated as well as the energy transfer efficiencies of Yb3+→Er3+ and Yb3+→Ho3+. Upconversion luminescence mechanisms of Er3+ and Ho3+ sensitized by Yb3+ in tellurite glasses were discussed. When the concentrations of Er3+ and Ho3+ ions were fixed at low values，the intensity of green and red upcoversion emission in Er3+/Yb3+/Ho3+-triply doped tellurite glasses increases with increasing Yb2O3 content, which are due to the interaction overlap of Er3+：4S3/2→4I15/2 and Ho3+：5S2(5F4)→5I8 transitions，Er3+：4F9/2→4I15/2 and Ho3+：5F5→5I8 transitions，respectively. In Er3+/Yb3+/Ho3+-triply doped tellurite glasses，the upconversion luminescence mechanisms were affected by the interaction energy transfers of Er3+/Yb3+, Ho3+/Yb3+ and Er3+/Ho3+. The cross-relaxation between Er3+ and Ho3+ enhances the upconversion emission intensities of Ho3+ in the visible region.-
Keywords:
- Er3+/Yb3+/Ho3+-codoped /
- tellurite glasses /
- optical properties /
- upconversion
计量
- 文章访问数: 6083
- PDF下载量: 996
- 被引次数: 0
物理学报. 2007, 56(9): 5518-5525.
doi: 10.7498/aps.56.5518.
Yb3+敏化的Er3+/Ho3+共掺碲酸盐玻璃的上转换发光研究
- 收稿日期: 2007-01-19
- 修回日期: 2007-03-04
- 刊出日期: 2007-09-20
摘要: 用高温熔融法制备了系列Er3+/Yb3+共掺，Ho3+/Yb3+共掺，和Er3+/Yb3+/Ho3+三掺碲酸盐玻璃，在975nm激光抽运下三种掺杂玻璃中都出现了较强的绿光和红光上转换.研究了Yb3+离子对Er3+和Ho3+离子上转换发光强度的影响以及Yb3+→Er
关键词:
English Abstract
Upconversion luminescence in Yb3+ sensitized Er3+/Yb3+-codoped tellurite glasses
- Received Date:
19 January 2007
- Accepted Date:
04 March 2007
- Published Online:
20 September 2007
Abstract: A series of Er3+/Yb3+-codoped，Ho3+/Yb3+-codoped，and Er3+/Yb3+/Ho3+-triply doped tellurite glasses were prepared by high-temperature melting. Under 975nm laser light excitation，intense green and red upconversion luminescence was observed in all the three kinds of codoped tellurite glasses. The influence of Yb3+ ions on the upconversion emission properties of Er3+ and Ho3+ ions was investigated as well as the energy transfer efficiencies of Yb3+→Er3+ and Yb3+→Ho3+. Upconversion luminescence mechanisms of Er3+ and Ho3+ sensitized by Yb3+ in tellurite glasses were discussed. When the concentrations of Er3+ and Ho3+ ions were fixed at low values，the intensity of green and red upcoversion emission in Er3+/Yb3+/Ho3+-triply doped tellurite glasses increases with increasing Yb2O3 content, which are due to the interaction overlap of Er3+：4S3/2→4I15/2 and Ho3+：5S2(5F4)→5I8 transitions，Er3+：4F9/2→4I15/2 and Ho3+：5F5→5I8 transitions，respectively. In Er3+/Yb3+/Ho3+-triply doped tellurite glasses，the upconversion luminescence mechanisms were affected by the interaction energy transfers of Er3+/Yb3+, Ho3+/Yb3+ and Er3+/Ho3+. The cross-relaxation between Er3+ and Ho3+ enhances the upconversion emission intensities of Ho3+ in the visible region.
下载:
