Abstract
Bu çalışmada farklı lantanitler (Eu,Dy,Nd) kullanarak
lüminesans özellikli borat tanecikler sentezlenmiştir. Lantanit katkılı
lüminesans maddelerin sentezlenmesi için kolay, ucuz ve verimli olan yanma
yöntemi kullanılmıştır. Sentezlenen maddelerde Fotolüminesans (PL)
spektroskopisi yöntemi kullanılarak katkılanan lantanitlerin, tuzak
derinliklerinin ve (aktivatör ve ko-aktivatörlerin) derişimlerinin ışıma
şiddeti üzerine etkisi incelenmiştir. Yapısal analizler X ışını kırınımı (XRD),
FTIR, Taramalı Elektron Mikroskobu (SEM) analizleri ile yapılmıştır. Farklı aktivatörlerin katkı oranlarına göre, kristal yapı ve bileşiklerin sönüm süreleri
incelendiğinde, her bir aktivatörün, farklı katkı oranlarının ışıma ve sönüm
sürelerini etkilediği ortaya konmuştur. Her bir bileşik için optimum oranlar
belirlenmiştir.
Sentezlenen maddeler arasında en iyi ışıma şiddetine sahip maddeler için
yapılan sönüm süresi çalışmaları sonucundan ışıma şiddetinin en yüksek
değerleri için sönüm süresinin de buna bağlı olarak daha uzun olduğu
görülmüştür.
Keywords
References
- [1]. Diaz, A., Keszler, D.A., Chem. Mater., 9, 2071, 1997. [2]. Wu. L, Chen X. L. Xu Y. P., And Sun Y. P. “Structure Determination and Relative Properties of Novel Noncentrosymmetric Borates MM’4(BO3)3 (M=Na, M’=Ca and M=K,M’=Ca, Sr)” Inorganic Chemistry, 45 No.7., 2006. [3]. Pekgozlu I., Erdogmus E., Cubuk E., Basak A.S. “Synthesis and photoluminescence of LiCaBO3:M (M:Pb2+ and Bi3+) phosphor” Journal of Luminescence 132, 1394-1399, 2012. [4]. Rulmont A., Almou A., Spectrochim. Acta 45A (5) 603, (1989) [5]. Bhagat S.P, Gawande A.B, Omanwar S.K, Photoluminescence study of a novel UV emitting phosphor Sr2Mg(BO3)2:Pb2+,Gd3+, Optical Materials, 40, 36-40, 2015. [6]. Martın O. Onani, Joseph O. Okil, Francis B. Dejene, “Solution-combustion synthesis and photoluminescence properties of YBO:Tb3+ phosphor powders” Physica. [7]. Bajaj N.S., Omanwar S.K., “Combustion synthesis and luminescence characteristics of NaSr4 (BO3)3:Tb3+” Journal of Luminescence 148, 169-173, 2014. [8]. Qiao X, Cheng Y, Qin L, Qin C, Cai P, Kim Sun I, Seo H.J, Coprecipitation synthesis, structure and photoluminescence properties of Eu3+ doped sodium barium borate, Journal of Alloys and Compounds, 617, 946-951, 2014. [9]. Zhang X, Seo H J, Luminescence properties of novel NaBa4(BO3)3:Ce3+, Eu3+Phosphors, Physica B, 406, 77-79, 2011. Yashashchandra D, Shyam Baha
Yanma Yöntemi ile Lantanit Katkılı Borat Nano Taneciklerin Sentezi ve Lüminesans Özelliklerinin İncelenmesi
Abstract
In this work, luminescent borate
particles were synthesized using different lanthanides (Eu, Dy, Nd). An easy,
inexpensive and efficient combustion method has been used to synthesize
lanthanide-doped luminescent materials. The effects of photoluminescence (PL)
spectroscopy on the radiant intensities of lanthanides, trap depths and
activators and co-activators were investigated in the synthesized materials.
Structural analyzes were performed by X-ray diffraction (XRD), FTIR, Scanning
Electron Microscopy (SEM) analyzes. When the damping times of the crystal
structure and the compounds are examined according to the addition ratios of
the different activators, it has been revealed that each activator influences
the afterglow time and decay curve of the different additive ratios. Optimum
ratios were determined for each compound. It was observed that the lifetime for
the highest values of long lasting afterglow intensity as a result of the lifetime
time studies for the substances having the best long lasting afterglow among
the synthesized substances is accordingly longer.
Keywords
References
- [1]. Diaz, A., Keszler, D.A., Chem. Mater., 9, 2071, 1997. [2]. Wu. L, Chen X. L. Xu Y. P., And Sun Y. P. “Structure Determination and Relative Properties of Novel Noncentrosymmetric Borates MM’4(BO3)3 (M=Na, M’=Ca and M=K,M’=Ca, Sr)” Inorganic Chemistry, 45 No.7., 2006. [3]. Pekgozlu I., Erdogmus E., Cubuk E., Basak A.S. “Synthesis and photoluminescence of LiCaBO3:M (M:Pb2+ and Bi3+) phosphor” Journal of Luminescence 132, 1394-1399, 2012. [4]. Rulmont A., Almou A., Spectrochim. Acta 45A (5) 603, (1989) [5]. Bhagat S.P, Gawande A.B, Omanwar S.K, Photoluminescence study of a novel UV emitting phosphor Sr2Mg(BO3)2:Pb2+,Gd3+, Optical Materials, 40, 36-40, 2015. [6]. Martın O. Onani, Joseph O. Okil, Francis B. Dejene, “Solution-combustion synthesis and photoluminescence properties of YBO:Tb3+ phosphor powders” Physica. [7]. Bajaj N.S., Omanwar S.K., “Combustion synthesis and luminescence characteristics of NaSr4 (BO3)3:Tb3+” Journal of Luminescence 148, 169-173, 2014. [8]. Qiao X, Cheng Y, Qin L, Qin C, Cai P, Kim Sun I, Seo H.J, Coprecipitation synthesis, structure and photoluminescence properties of Eu3+ doped sodium barium borate, Journal of Alloys and Compounds, 617, 946-951, 2014. [9]. Zhang X, Seo H J, Luminescence properties of novel NaBa4(BO3)3:Ce3+, Eu3+Phosphors, Physica B, 406, 77-79, 2011. Yashashchandra D, Shyam Baha
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Article |
| Authors | |
| Publication Date | July 5, 2018 |
| Acceptance Date | March 28, 2018 |
| Published in Issue | Year 2018 Volume: 3 Issue: 2 |
Journal of Boron by Turkish Energy Nuclear Mineral Research Agency is licensed under CC BY-NC-SA 4.0
