کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1596808 | 1002853 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The pressure effect on the photoluminescence and Raman spectra of Nd(DBM)3·Phen
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Photoluminescence and Raman spectra of rare earth complex Nd(DBM)3·Phen (DBM, dibenzoylmethane; Phen, 1,10-phenanthroline) are measured at high pressures. A new Raman band appearing at 1070 cmâ1 indicates a second-order phase transition around 5.0 GPa. Although the crystal lattice is destroyed for pressures higher than 7.1 GPa, photoluminescence spectra show that the emission intensity of Nd3+ is enhanced dramatically with the pressure increasing up to 9.9 GPa, which is attributed to an efficient intramolecular energy transfer from the ligand to Nd3+. By analyzing the energy of the ground and excited states at 9.9 GPa, the 4H11/2 energy level is considered as the main resonance energy level that efficiently accepts the transferred energy from the ligand.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 138, Issue 2, April 2006, Pages 86-90
Journal: Solid State Communications - Volume 138, Issue 2, April 2006, Pages 86-90
نویسندگان
Q.G. Zeng, Z.M. Zhang, Z.J. Ding,