Optimization of luminescence properties of Tb3+-doped α-Sr2P2O7 phosphor synthesized by combustion method

被引：7

作者：

Patel, Nimesh Prafulbhai ^{[1
]}

Srinivas, Mangalampalli ^{[1
]}

Modi, Dhaval ^{[1
]}

Verma, Vishwnath ^{[1
]}

Murthy, Kota Venkata Ramana ^{[2
]}

机构：

[1] Maharaja Sayajirao Univ Baroda, Dept Phys, Luminescence Mat Lab, Vadodara 390002, Gujarat, India

[2] Maharaja Sayajirao Univ Baroda, Fac Engn & Technol, Dept Appl Phys, Display Mat Lab, Vadodara 390001, Gujarat, India

来源：

RARE METALS | 2018年 / 37卷 / 07期

关键词：

Rare earth doping; Strontium pyrophosphate; beta-Irradiation; Photoluminescence; Thermoluminescence; PHOTOLUMINESCENCE; DY;

D O I：

10.1007/s12598-015-0688-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, thermoluminescence (TL) properties of rare earth Tb3+-doped alpha-Sr2P2O7 were examined after beta-irradiation and photoluminescence (PL) properties of samples were examined for proper excitation. All the samples were synthesized by high-temperature combustion method. The X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy characterization confirms the formation of pure alpha-phase with crystallized in orthorhombic structure of samples. The PL emission spectra of all samples exhibit characteristic green emission peaks of Tb3+ where the peak at 545 nm has the highest emission intensity for Tb3+ concentration of 5.0 mol%. The TL glow curves of beta-irradiated Tb3+-doped alpha-Sr2P2O7 phosphors were recorded at different heating rates of 2, 4, and 6 K center dot s(-1). TL curves of all sample exhibit combination of two peaks: peak at 420 K shifts toward higher temperature, while peak at 525 K remains unaffected with the increase in Tb3+ concentration as well as fading effect. The activation energy and kinetic parameters of the samples were evaluated using thermoluminescence peak shape method.

引用

页码：587 / 593

页数：7