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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Phonon sidebands and vibrational properties of Eu3+ doped lead germanate glasses
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Phonon sidebands and vibrational properties of Eu3+ doped lead germanate glasses

机译：Eu3 +掺杂锗酸铅玻璃的声子边带和振动特性

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摘要

The phonon sideband spectra of the F-7(0) --> D-5(0) and F-7(0) --> D-5(2) electronic transitions of Eu3+ are reported and assigned on the basis of the vibrational Raman spectra for a series of lead germanate glasses of molar compositions (x-1)PbO . (100-x)GeO2 . 1Eu(2)O(3) with x = 30, 40 and 50 mol%. The samples were prepared by melting the appropriate amount of the oxides at 1100 degrees C for 2 h, and quenching and annealing at temperatures from 320 to 380 degrees C for 15 h. The electron-phonon coupling strength of the Ge-O stretching modes coupled to the F-7(0) --> D-5(2) transition was evaluated by determining the ratio of the intensity of the phonon sideband to the intensity of the zero phonon line. With increasing lead content, the coupling strength appears to increase (within the experimental uncertainties) from 0.010 (x = 30 mol%) to 0.012 (x = 50 mol%). (C) 1997 Elsevier Science B.V.
机译：报告了Eu7 +的F-7（0）-> D-5（0）和F-7（0）-> D-5（2）电子跃迁的声子边带谱，并基于一系列摩尔组成为（x-1）PbO的锗酸铅玻璃的振动拉曼光谱。 （100-x）GeO 2。 x = 30、40和50 mol％的1Eu（2）O（3）。通过将适量的氧化物在1100摄氏度下熔化2小时，然后在320至380摄氏度的温度下淬火和退火15小时来制备样品。通过确定声子边带的强度相对于F-7（0）-> D-5（2）跃迁的Ge-O拉伸模的电子-声子耦合强度进行评估零声子线。随着铅含量的增加，耦合强度似乎在实验不确定性范围内从0.010（x = 30 mol％）增加到0.012（x = 50 mol％）。 （C）1997年Elsevier Science B.V.

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