SavedAdd your journal

Journals / Kırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi / 2017 / Cilt: 3 - Sayı: 2

KINETIC CHARACTERIZATION OF GAG:CE PHOSPHOR

KINETIC CHARACTERIZATION OF GAGCE PHOSPHOR

Arzu EGE
Sibel UYSAL SATILMIŞ
Levent TÜRKLER
Zekai TEK
Elisabeth POPOVICI
Pages
95–106
Publication Date
2017-12-30
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results acquired using all methods are discussed and compared.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Thermoluminescence (TL) kinetic characterization of cerium (Ce3+) doped gadolinium aluminum garnet (GAG) prepared by wet chemical synthesis method are presented in this study.
📊
Key Findings & Data:Thermoluminescence glow curve of GAG phosphor after UV irradiated has two peaks at about 350 and 501 K with a heating rate of 2 Ks-1.
💡
Conclusion & Impact:Results acquired using all methods are discussed and compared.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Gadolinyum alüminyum garnet · Termolüminesans · Kinetik parametre

Abstract

Thermoluminescence (TL) kinetic characterization of cerium (Ce3+) doped gadolinium aluminum garnet (GAG) prepared by wet chemical synthesis method are presented in this study. Thermoluminescence glow curve of GAG phosphor after UV irradiated has two peaks at about 350 and 501 K with a heating rate of 2 Ks-1. Thermoluminescence kinetic parameters such as order of kinetics, frequency factor and activation energy associated with the main glow peak of the GAG:Ce phosphor have been calculated using various heating rates (VHR) computerized glow curve deconvulation (CGCD) and peak shape (PS) methods in this study. The activation energies obtained by VHR, PS and CGCD methods are calculated to be 1.24, 1.11 and 1.14 eV, respectively. The frequency factors attained by these methods were found as 3.41x1011, 1.80x1010 and 2.63x1010 s-1, respectively. Results acquired using all methods are discussed and compared.

Özet

Bu çalışmada, ıslak kimyasal sentez metodu ile hazırlanmış seryum (Ce+3) katkılı gadolinyum alüminyum garnetin termolüminesans (TL) kinetik karakterizasyonu sunulmuştur. UV ile ışınlanmasının ardından GAG fosforunun, termolüminesans ışıma eğrisi 2 Ks-1 ısıtma hızı ile yaklaşık olarak 350 ve 501 K de iki pike sahiptir. Çalışmada GAG:Ce fosforunun ana ışıma piki (501 K) ile ilişkili kinetik derece, frekans faktörü ve aktivasyon enerjisi gibi termolüminesans kinetik parametreleri, çeşitli ısıtma hızları (VHR), bilgisayarlı ışıma eğrisi dekonvulasyonu (CGCD) ve pik şekli (PS) metotları ile hesaplanmıştır. VHR, PS ve CGCD metotları ile elde edilen aktivasyon enerjileri sırasıyla 1,24, 1,11 ve 1, 14 eV olarak hesaplanmıştır. Bu metotlarla ulaşılan frekans faktörleri 3,41x1011, 1,80x1010 ve 2,63x1010 s-1 olarak bulunmuştur. Tüm metotlardan elde edilen sonuçlar kıyaslanmış ve tartışılmıştır.

🔖

Cite This Article

EGE, A., SATILMIŞ, S. U., TÜRKLER, L., TEK, Z., POPOVICI, E. (2017). KINETIC CHARACTERIZATION OF GAG:CE PHOSPHOR. Kırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi, Cilt: 3 - Sayı: 2, 95–106. https://ajindex.com/articles/785837

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (10)

  1. Surresh, G., Seenivasan, G., Krishnaiah, M.V., Murti, P.S., Investigation of the thermal conductivity of selected compounds of gadolinium and lanthanum, Journal of Nuclear Materials, 249, 259-261, 1997.
  2. Cizauskaite, S., Reichlova, V., Nenartaviciene, G., Beganskiene, A., Pinkas, J., Kareiva, A., Sol–gel preparation and characterization of gadolinium aluminate, Materials Chemistry and Physics, 102, 105-110, 2007.
  3. Chiang, C.C., Tsai, M.S. and Hona, M.H., Preparation of Cerium-Activated GAG Phosphor Powders Influence of Co-doping on Crystallinity and Luminescent Properties, Journal of The Electrochemical Society, 154, 10, J326-J329, 2007.
  4. Marius, M., Popovici, E.J., Barbu-Tudoran, L., Indrea, E., Mesaros, A., Cerium-doped yttrium aluminate based phosphors prepared by wet-chemical synthesis route: Modulation of the luminescence color by changing the host-lattice composition, Ceramics International, 40, 6233–6239, 2014.
  5. Matos, M.G., Calefi, P.S., Ciuffi, K.J., Nassar, E.J., Synthesis and luminescent properties of gadolinium aluminates phosphors, Inorganica Chimica Acta, 375, 63–69, 2011. Dotsenko,V.P., Berezovskaya, I.V., Voloshinovskii, A.S., Zadneprovski, B.I., Efryushina, N.P., Luminescence properties and electronic structure of Ce3+-doped gadolinium aluminum garnet, Materials Research Bulletin, 64, 151–155, 2015.
  6. Popovici, E.J., Morar, M., Bica, E., Perhaita, I., Cadis, A.I., Indrea, E., Barbu-Tudoran, L., Synthesis and characterization of cerium doped yttrium-gadolinium aluminate phosphors by wet-chemical synthesis route, Journal of Optoelectronics and Advanced Materials, 13, 617–624, 2011.
  7. Diffey, B.L., Sources and measurement of ultraviolet radiation, Methods, 28, 4–13, 2002.
  8. Ultraviolet Radiation Guide, Technical Manual NEHC-TM92-5, Bureau of Medicine and Surgery, Navy Environmental Health Center, April 1992.
  9. Uysal Satilmis, S., Ege A., Ayvacikli, M., Khatab, A., Ekdal, E., Popovici, E.J., Henini, M., Can, N., Luminescence characterization of cerium doped yttrium gadolinium aluminate phosphors, Optical Materials, 34, 1921–1925, 2012.
  10. Bindi, R., Lapraz, D., Iacconi, P., Boutayeb, S., Theoretical analysis of the simultaneous detection method of thermally stimulated conductivity (TSC) and luminescence (TSL); application to an alpha -Al2O3 monocrystal, Journal of Physics D: Applied Physics, 27, 2395-2400, 1994. Ege (Türkler), A., Ekdal, E., Karali, T., Can, N. and Prokic, M., Effect of heating rate on kinetic parameters of β-irradiated Li2B4O7: Cu, Ag, P in