Energy levels and optical spectroscopy of Er3+ in Gd2O3 nanocrystals
文献类型：期刊论文
| 作者 | X. Y. Chen ; E. Ma ; G. K. Liu |
| 刊名 | Journal of Physical Chemistry C
 |
| 出版日期 | 2007-07 |
| 卷号 | 111期号:28页码:10404-10411 |
| 关键词 | rare-earth ions crystal-field analysis visible up-conversion single-crystals doped gd2o3 multiphonon relaxation vibronic transitions spectra y2o3 nanoparticles |
| ISSN号 | 1932-7447 |
| 中文摘要 | Based on the high-resolution excitation and emission spectra at 10 and 297 K, we have determined 107 crystal-field (CF) levels below 43 000 cm(-1) of Er3+ at the C-2 site of Gd2O3 nanocrystals. The levels were analyzed in terms of 16 free-ion and 14 CF parameters. The CF modeling of the experimental energy levels yielded physically reasonable Hamiltonian parameters with a final root-mean-square deviation of 12.5 cm(-1). A modified Judd-Ofelt (JO) intensity analysis was proposed in evaluating the spectroscopic parameters such as JO parameters, radiative lifetime, and branching ratios for rare-earth ions doped in nanocrystals. Three JO parameters were obtained (Omega(2,4,6) = 4.96, 2.23, and 0.49, in units of 10(-20) cm(2)). The effect of J-mixing was taken into account in the energy-level-fitting and in the J-J' transition intensity calculation, which is observed to be responsible for the significant increase of the radiative transition rate of S-4(3/2). Furthermore, the luminescence lifetimes of several excited multiplets of Er3+ were measured, and vibronic side bands and self-absorption were observed in the 10 K emission spectrum. |
| 语种 | 英语 |
| 公开日期 | 2013-04-01 |
| 源URL | [http://ir.fjirsm.ac.cn/handle/350002/6177]  |
| 专题 | 福建物质结构研究所_中科院福建物质结构研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | X. Y. Chen,E. Ma,G. K. Liu. Energy levels and optical spectroscopy of Er3+ in Gd2O3 nanocrystals[J]. Journal of Physical Chemistry C,2007,111(28):10404-10411. |
| APA | X. Y. Chen,E. Ma,&G. K. Liu.(2007).Energy levels and optical spectroscopy of Er3+ in Gd2O3 nanocrystals.Journal of Physical Chemistry C,111(28),10404-10411. |
| MLA | X. Y. Chen,et al."Energy levels and optical spectroscopy of Er3+ in Gd2O3 nanocrystals".Journal of Physical Chemistry C 111.28(2007):10404-10411. |
入库方式： OAI收割
来源：福建物质结构研究所
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