Linear structural evolution induced tunable photoluminescence in clinopyroxene solid-solution phosphors

被引：217

作者：

Xia, Zhiguo ^{[1
]}

Zhang, Yuanyuan ^{[1
]}

Molokeev, Maxim S. ^{[2
]}

Atuchin, Victor V. ^{[3
]}

Luo, Yi ^{[1
]}

机构：

[1] China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China

[2] SB RAS, Lab Crystal Phys, Inst Phys, Krasnoyarsk 660036, Russia

[3] SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia

来源：

SCIENTIFIC REPORTS | 2013年 / 3卷

关键词：

ENERGY-TRANSFER; LUMINESCENCE; GENERATION; EMISSION; MN2+;

D O I：

10.1038/srep03310

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Clinopyroxenes along the Jervisite (NaScSi2O6) - Diopside (CaMgSi2O6) join have been studied, and a solid-solution of the type (Na1-xCax)(Sc1-xMgx)Si2O6 has been identified in the full range of 0 <= x <= 1. The powder X-ray patterns of all the phases indicate a structural similarity to the end compounds and show smooth variation of structural parameters with composition. The linear structural evolution of iso-structural (Na1-xCax)(Sc1-xMgx)Si2O6 solid-solutions obeying Vegard's rule has also been examined and verified by high resolution transmission electron microscopy (HRTEM). The continuous solid-solutions show the same structural type, therefore the photoluminescence spectra of Eu2+ doped samples possess the superposition of spectral features from blue-emitting component (CaMgSi2O6:Eu2+) and yellow-emitting one (NaScSi2O6:Eu2+). This indicates that the spectroscopic properties of (Na1-xCax)(Sc1-xMgx)Si2O6 clinopyroxene solid-solutions are in direct relations with structural parameters, and it is helpful for designing color-tunable photoluminescence with predetermined parameters.

引用

页数：7

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