Role of Er3+ and Bi3+ ions on thermal and optical properties of Li2B4O7 glasses: Structural correlation

被引：23

作者：

Chandrashekaraiah, G. ^{[1
]}

Reddy, N. Sivasankara ^{[2
]}

Sujatha, B. ^{[3
]}

Viswanatha, R. ^{[4
]}

Reddy, C. Narayana ^{[5
]}

机构：

[1] Bharatiar Univ, R&D Ctr, Coimbatore, Tamil Nadu, India

[2] Presidency Univ, Sch Engn, Dept Phys, Bangalore 560064, Karnataka, India

[3] MSRIT, Dept Elect & Commun, Bangalore 560054, Karnataka, India

[4] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

[5] PES Degree Coll, Dept Phys, Bangalore 560050, Karnataka, India

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2018年 / 498卷

关键词：

Thermal stability; Oxide ion polarizability; Basicity; B-11 MAS NMR; Metallization criterion; BISMUTH BORATE GLASSES; ELECTRONIC POLARIZABILITY; SPECTROSCOPIC PROPERTIES; UP-CONVERSION; INFRARED LUMINESCENCE; INTERACTION PARAMETER; TELLURITE GLASS; BASICITY; LEAD; FLUORESCENCE;

D O I：

10.1016/j.jnoncrysol.2018.06.034

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Glasses with general formulae xBiCl(3)-(100-x)Li2B4O7 where 10 <= x <= 30 and x Er2O3-(10-x)BiCl3-90Li(2)B(4)O(7), where 0.1 <= x <= 0.5 mol% have been prepared to study the effect of Er2O3/BiCl3 on their physical, thermal and optical properties. Thermal stability parameter (Delta T) extracted from DSC thermograms reveals that the Delta T (> 100 degrees C) depends on Er2O3 content and the glasses are suitable for fiber drawing process. Optical properties of both the investigated glass systems exhibit composition dependent trends and the properties are critically dependent on polarizabilities and ionicity of the dopant ions. The variations observed in the physical properties of investigated glasses were correlated to the structural changes occur due to the addition of BiCl3/Er2O3. B-11 MAS NMR studies reveal the opening up of a tightly bound [B4O7](2-) structural units with the formation of NBOs in the network. The variation of N-4 (fraction of 4-coordinated boron to the total boron content) with BiCl3/Er2O3 clearly indicates the presence of different proportion of 3- and 4-coordinated borons in the glass network.

引用

页码：252 / 261

页数：10

共 59 条

[11]

Dimitrov V., 2010, J. Univ. Chem. Technol. Metall., V45, P219, DOI DOI 10.1016/J.JNONCRYSOL.2009.11.014

[12] INTERPRETATION OF GLASS CHEMISTRY IN TERMS OF OPTICAL BASICITY CONCEPT [J].

DUFFY, JA ;

INGRAM, MD .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1976, 21 (03) :373-410

[13]

El Khoshkhany Nehal, 2014, J CHEM ENG, V5, P11

[14] Mole fraction of ions and molecules in light of the atom structure. [J].

Fajans, K ;

Joos, G .

ZEITSCHRIFT FUR PHYSIK, 1924, 23 :1-46

[15] Optical absorption and structural studies of bismuth borate glasses containing Er3+ ions [J].

Farouk, M. ;

Samir, A. ;

Metawe, F. ;

Elokr, M. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2013, 371 :14-21

[16]

Fazans K., 1949, CHEM ENG NEWS, V27, P900

[17]

Feld K. Hertz, 1927, PHY REV, V29, P701

[18] Infrared luminescence from bismuth-doped silica glass [J].

Fujimoto, Y ;

Nakatsuka, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2001, 40 (3B) :L279-L281

[19] Effect of Bi2O3 on physical, optical and structural properties of boron silicon bismuthate glasses [J].

Gao, Guojun ;

Hu, Lili ;

Fan, Huiyan ;

Wang, Guonian ;

Li, Kefeng ;

Feng, Suya ;

Fan, Sijun ;

Chen, Huiyu .

OPTICAL MATERIALS, 2009, 32 (01) :159-163

[20] LI-7, B-11 AND F-19 NMR IN AMORPHOUS ALKALI HALOGEN BORATE SOLID IONIC CONDUCTORS [J].

GEISSBERGER, AE ;

BUCHOLTZ, F ;

BRAY, PJ .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1982, 49 (1-3) :117-127

← 1 2 3 4 5 6 →