Solid State Synthesis and Characterization of Some Novel Sodium Rare Earth Phosphates

Date

2005-01-01

Author

Seyyidoglu, Semih
Özenbaş, Ahmet Macit
Kizilyalli, Meral
Yılmaz, Ayşen

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

192
views

0
downloads

Recently, much attention has been paid to the rare earth phosphates because of their potential applications for optical materials, including laser, phosphors, and more recently, anti-UV materials [1]. MOPO4 type materials possess properties that make them potentially useful for catalytic, electronic and ion exchange applications[2]. In this work, Ln2O3 (where Ln= La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) were used as a rare earth source, NH4H2PO4 was used as a phosphate source and Na2CO3 was used as a sodium source to obtain sodium rare earth oxyphosphates. Reactants were heated at 1100 0 C for 20 hours. X-ray difraction patterns, IR and Raman analysis, SEM pictures and EDX analysis were taken for characterization. According to these results, structures of these products were compared with previous ones[2-3].

Subject Keywords

rare-earths, oxyphosphates, solid-state

URI

https://hdl.handle.net/11511/70237

Journal

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES

DOI

https://doi.org/10.1107/s0108767305086526

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Simulation of thermal, mechanical and optical behavior of yag ceramics with increasing Nd3+ concentration under lasing conditions. Kenar, Necmettin; Öke, Gülay; Department of Physics (2007) Two-dimensional thermal, mechanical and optical simulations are carried out to investigate the effect of Nd3+ concentration on thermal, mechanical and optical behavior of Nd:YAG ceramic laser materials under continuous wave laser operation. In the analyses, rods are pumped longitudinally with laser diodes, in three, six, nine and twelve fold structures. Rods having diameters of 3 and 6 mm are pumped with 808 nm and 885 nm sources separately having Nd+3 concentrations of 0.6, 1, 2, 3, 4 and 6 at. %. Total ab...
Tunable optical properties of Dy3+; Eu3+ doped, Dy3+/ Bi3+; Dy3+ /Ce3+; Dy3+/ Eu3+; Tb3+ /Ce3+ codoped LaBO3 Abacı, Özde Ceren; Yılmaz, Ayşen; Esentürk, Okan; Department of Chemistry (2017) In recent years, light emitting materials especially trivalent rare earth ions (RE3+) doped inorganic borate phosphors have attracted much attention due to their useful applications in several fields, which include flat panel displays, white light emitting diodes (WLEDs), solar cells, thermoluminescence dosimeters. In this research, single phase Dy3+; Eu3+ doped Dy3+/ Bi3+; Dy3+/ Ce3+; Dy3+/ Eu3+; Tb3+/ Ce3+ codoped lanthanum orthoborate phosphors were prepared by microwave assisted solid state synthesis me...
Polymer light emitting diodes and organic solar cells towards ito free devices and high efficiency devices using electrochemically synthesized polymers / Hızalan Özsoy, Gönül; Toppare, Levent Kamil; Department of Chemistry (2017) In this study, polymer based solar cells and polymer based light emitting diodes were constructed. In the third and fourth chapters of this study, effect of terminal units and effect of molecular weight on electroluminescence and photovoltaic properties were investigated. Triphenyl end capped polymer P1 based PLED shows luminance value of 10411cd/m2 at 8.5V whereas benzene end capped polymer P2 based PLED has the peak luminance value of 14583cd/m2 at 8V. P2 based photovoltaic devices exhibited superior perf...
Interactions of lithium-carbon nanosystems: molecular dynamics simulations and density functional theory calculations Peköz, Rengin; Erkoç, Şakir; Department of Physics (2008) Single walled carbon nanotubes have been attracting interest for their electronic, magnetic, chemical and mechanical properties. Moreover, since they are ideal nano-containers, the adsorption and absorption properties provide them to be used as Li/Li+ ion batteries. The capacity, rate capability and cycle life of the batteries are the important points which must be improved to have better results. In this thesis Li/Li+ ion doped carbon nano structures are investigated theoretically in order to contribute to...
Fabrication of thin crystalline silicon solar cells with advanced light trapping Hadibrata, Wisnu; Yerci, Selçuk; Turan, Raşit; Department of Micro and Nanotechnology (2017) Thin crystalline silicon (c-Si) solar cells with thickness in the order of few tens of microns offer many attractive applications, such as, electronic wearables, space probes and satellites thanks to their flexibility and light-weight character. However, reducing the thickness of active layer of silicon solar cells leads to poor light absorption within the silicon layer, especially in the near infrared region of the solar spectrum. The poor absorption becomes problematic for thin c-Si solar cells as it caus...

Citation Formats

S. Seyyidoglu, A. M. Özenbaş, M. Kizilyalli, and A. Yılmaz, “Solid State Synthesis and Characterization of Some Novel Sodium Rare Earth Phosphates,” ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, pp. 0–0, 2005, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/70237.