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铌酸钇里Bi3+敏化Tm3+的近红外量子剪裁发光的浓度效应

The Concentration Effect of Near-Infrared Quantum Cutting Luminescence of Tm3+ Ion Sensitized with Bi3+ Ion in YNbO4 Phosphor

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摘要

寻找新能源为全球目前面临着的重要课题, 其中最理想的新能源为太阳能。 近红外量子剪裁发光方法可以把硅或锗太阳能电池响应不够灵敏的大能量光子成倍的转换成为太阳能电池响应灵敏的小能量光子, 能够解决光谱失配的问题, 较大幅度的提高太阳能电池的效率。 很有意义。 报道了掺Tm3+Bi3+的铌酸钇磷光粉样品材料的近红外量子剪裁发光的浓度效应。 通过测量激发谱与发光谱, 发现Tm0.058Bi0.010Y0.932NbO4有很强的1 820.0 nm近红外量子剪裁发光; 进一步的分析发现, 它们是由交叉能量传递过程导致的多光子量子剪裁发光; 还发现了有着很强的Bi3+对Tm3+的敏化近红外量子剪裁发光, 302.0 nm光激发导致的Tm0.058Bi0.010Y0.932NbO4相对Tm0.005Y0.995NbO4的1 820.0 nm近红外量子剪裁发光的增强达到175.5倍。 该结果对探索多光子近红外量子剪裁锗太阳能电池比较有意义。

Abstract

Searching for new energy source is one of the most important projects faced by the global, while the most ideal new energy source is solar cell. Near infrared quantum cutting luminescence method can doubly transfer large energy photon which is not sensitive to Si or Ge solar cell to small energy photon which is sensitive to Si or Ge solar cell. It can resolve the spectral mismatch problem and largely enhance solar cell efficiency. Therefore, it is significant. The concentration effect of near-infrared quantum cutting luminescence of Tm3+Bi3+∶YNbO4 phosphor is reported in present manuscript. Through the measurement of excitation and emission spectra, it is found that the Tm0.058Bi0.010Y0.932NbO4 powder phosphor has intense 1 820.0 nm near-infrared quantum cutting luminescence. Further analysis finds they are multi-photon quantum cutting luminescence induced by the cross-energy transfer process. The population of 1G4 energy level may be directly transferred to lower energy level mainly through {1G4—3H4, 3H6—3H5} and {1G4—3H5, 3H6—3H4} cross-energy transfer processes, i. e. one population of the 1G4 energy level may effectively lead to two populations, which are positioned at the 3H4 and 3H5 energy levels, respectively, mainly through {1G4—3H4, 3H6—3H5} and {1G4—3H5, 3H6—3H4} cross-energy transfer processes. This may also effectively lead to three populations of the 3F4 energy level through {3H4—3F4, 3H6—3F4} cross-energy transfer process from the 3H4 level and multi-phonon non-radiative relaxation from the 3H5 level, respectively. This results in the effective three-photon near-infrared quantum cutting of the 3F4—3H6 fluorescence of Tm3+ ion. It’s also found that the sensitization action of Bi3+ ion to Tm3+ ion is very strong. The enhancement of the 1 820.0 nm near-infrared quantum cutting luminescence, of Tm0.058Bi0.010Y0.932NbO4 relative to Tm0.005Y0.995NbO4, is about 175.5 times, when excited by the 302.0 nm light. The present results are significant for the exploration of the next-generation multi-photon near-infrared quantum cutting germanium solar cell.

Newport宣传-MKS新实验室计划
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中图分类号:P482.3

DOI:10.3964/j.issn.1000-0593(2016)07-2042-06

基金项目:国家自然科学基金课题项目(51472028)与中央高校基本科研业务费专项资金重大项目(212-105560GK)资助

收稿日期:2015-05-05

修改稿日期:2015-09-02

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作者单位    点击查看

陈晓波:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
李 崧:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
陈晓端:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
王杰亮:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
何丽珠:北京科技大学材料科学与工程学院, 北京 100083
王水锋:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
邓志威:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
程欢利:北京师范大学应用光学北京重点实验室与物理系, 北京 100875
高 燕:国家纳米科学中心纳米材料实验室, 北京 100190
刘泉林:北京科技大学材料科学与工程学院, 北京 100083

联系人作者:陈晓波(chen78xb@sina.com)

备注:陈晓波, 1963年生, 北京师范大学应用光学北京重点实验室教授

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引用该论文

CHEN Xiao-bo,LI Song,CHEN Xiao-duan,WANG Jie-liang,HE Li-zhu,WANG Shui-feng,DENG Zhi-wei,CHENG Huan-li,GAO Yan,LIU Quan-lin. The Concentration Effect of Near-Infrared Quantum Cutting Luminescence of Tm3+ Ion Sensitized with Bi3+ Ion in YNbO4 Phosphor[J]. Spectroscopy and Spectral Analysis, 2016, 36(7): 2042-2047

陈晓波,李 崧,陈晓端,王杰亮,何丽珠,王水锋,邓志威,程欢利,高 燕,刘泉林. 铌酸钇里Bi3+敏化Tm3+的近红外量子剪裁发光的浓度效应[J]. 光谱学与光谱分析, 2016, 36(7): 2042-2047

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