Survey for rare earth doped chalcogenide glasses with high intensity of luminescence.

高发光强度稀土掺杂硫系玻璃的研究

• 批准号: 15560301
• 负责人: MAEDA Kouji
• 金额: $ 2.11万
• 依托单位: University of Miyazaki
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560301/
• 关键词: chalcogenide glass; glass transition temperature; rare earth element; erbium; photoluminescence; light absorption; raman spectra; solubility; ツリウム; 光導波路

Chalcogenide glasses have useful properties such as low phonon energies, high refractive index, and high transmittance in the infrared. Erbium (Er^<3+>) doped chalcogenide glasses are important candidates for active optical wave guide applications at around 1550nm. We investigated Er^<3+> doped chalcogenide glasses. Bulk samples were prepared using Ge (5N), Se (5N), Ga (5N), and Er_2S_3 (3N) by melt quenching technique by quenching from 1000 ℃ to water. We evaluated the solubility of Er according to optical transmission at 1450nm and efficiency of absorption for Er^<3+>. The glasses allowed to solute 1at.% of Er over the all glass forming region except for low (<3at.%) Ga concentration. On the tie-line of stoichiometry between GeSe_2 and Ga_2Se_3 the solubility of Er is best as about 4 at.% of Er. The photoluminescence (PL) was excited from a laser operating at a wavelength of 980 nm. The maximum intensity of PL was observed on the tie-line at 10-14at.% of Ga. We found that PL intensity increased proportionally with Er^<3+> concentration up to 2 at.% and than it is constant or decreases above this concentration. Consequently Er^<3+> ions seem to be well dispersed and optically active up to Er concentration of about 2 at.% in these glass matrices. The glass matrix of Er^<3+> doped glasses becomes inhomogeneous above 18.at.% of Ga content. As this behaviour was observed only for Er-doped glasses, the presence of Er^<3+> ions seem to aid glass matrix destabilization (phase separation, or crystallization). The effect of thermal annealing and substitution of Se to Te were observed. The PL intensity increased to 50%-100% without the change of PL spectra. Er^<3+> ions would stay near the covalent bond of -Se^<-δ>-Ga^<+δ>- because the difference in the electronegativity of both atoms caused the ionic bonding between Se and Ga. Then Er^<3+> ion attracted to some number of Se atoms.

葡萄干剂玻璃具有有用的特性，例如低声子能量，高折射率和红外线的高传输。 Erbium（ER^<3+>）掺杂的硫族化合物玻璃是在1550nm左右的主动光波指南应用的重要候选者。我们研究了Er^<3+>掺杂的硫族化合物玻璃。使用GE（5N），SE（5N），GA（5N）和ER_2S_3（3N）通过熔融淬火技术从1000℃到水来制备散装样品。我们根据1450nm的光学传输以及ER^<3+>的痛苦效率评估了ER的溶液。除低（<3at。％）GA浓度外，允许在所有玻璃形成区域上可溶1AT的ER的玻璃。在GESE_2和GA_2SE_3之间的化学计量平局上，ER的解决方案最好约为ER的4％。光效率（PL）是从在980 nm波长下工作的激光激发的。在ga的10-14AT上观察到PL的最大强度。我们发现，PL强度随着ER^<3+>浓度成比例增加，最高为2 at。％，并且比恒定或降低了该浓度。因此，在这些玻璃矩阵中，Er^<3+>离子似乎很好地分散，并且光学活性高达约2％。 Er^<3+>掺杂玻璃的玻璃基质在18. ga含量的18.％以上变得不均匀。由于仅观察到这种行为，因此ER^<3+>离子的存在似乎有助于玻璃基质不稳定（相位分离或结晶）。观察到热退火和将SE取代为TE的影响。 PL强度在没有PL光谱的情况下增加到50％-100％。 Er^<3+>离子将保持在-se^<-Δ> -ga^<+δ>的共价键附近，因为这两个原子的电负性差异导致Se和Ga之间的离子键。然后Er^<3+>离子吸引了某些SE原子。

项目成果

THERMAL AND OPTICAL ANALYSIS OF Ge-Ga-Se CHALCOGENIDE GLASSES

Ge-Ga-Se硫属化物玻璃的热光学分析

• 发表时间: 2006
• 期刊: OPTICAL PROPERTIES OF Er-DOPED Ga_x(Ge_30Se_70)_100-_x GLASSES. 28
• 作者: M.Munzar

Influence of Ga on the optical and thermal properties of Er_2S_3 doped stoichiometric and nonstoichiometric Ge-Ga-Se glasses.

Ga对Er_2S_3掺杂化学计量和非化学计量Ge-Ga-Se玻璃光学和热性能的影响

• 发表时间: 2005
• 期刊: Phys.Chem.Glasses 46
• 作者: M.Munzar;M.Munzar;K.Maeda;M.Munzar;K.Maeda;M.Munzar
• 通讯作者: M.Munzar

Effect of three stage isothermal annealing on nucleation process in GeSe_2 glasses

三阶段等温退火对GeSe_2玻璃成核过程的影响

• 发表时间: 2003
• 期刊: J.Mater.Sci. : Mater.Electro. 14
• 作者: M.Munzar;M.Munzar;K.Maeda;M.Munzar;K.Maeda;M.Munzar;K.Maeda;K.Maeda;M.Munzar;K.Sakai;K.Maeda
• 通讯作者: K.Maeda

EFFECT OF THERMAL ANNEALING ON THE PHOTOLUMINESCENCE OF Er DOPED Ge-Se-Ga GLASSES.

热退火对掺铒 Ge-Se-Ga 玻璃光致发光的影响。

• 期刊: Physics and Chemistry of Glasses (Accepted)
• 作者: M.Munzar;M.Munzar;K.Maeda;M.Munzar;K.Maeda;M.Munzar;K.Maeda;K.Maeda;M.Munzar;K.Sakai;K.Maeda;K.Sakai;K.Maeda;T.Sakai;K.Maeda;T.Sakai;K.Maeda
• 通讯作者: K.Maeda

The influence of Te on thermal properties of Er-doped(Ge_<30>(Se_<1-x>Te_x)_<70>)_<94>Ga_6 chalcogenide glasses.

Te对Er掺杂(Ge_<30>(Se_<1-x>Te_x)_<70>)_<94>Ga_6硫系玻璃热性能的影响。

• 发表时间: 2005
• 期刊: Mater.Sci.Eng.B 122
• 作者: M.Munzar;M.Munzar;K.Maeda;M.Munzar;K.Maeda;M.Munzar;K.Maeda
• 通讯作者: K.Maeda