Malaysian Journal of Analytical Sciences Vol 19 No 6 (2015): 1297 - 1302

 

 

 

FABRICATION AND OPTICAL CHARACTERISATION OF RARE EARTH ACTIVE IONS DOPED TELLURITE GLASS SYSTEM

 

(Fabrikasi dan Pencirian Optik Sistem Kaca Telurit Didopkan Ion–Ion Aktif Nadir Bumi)

 

Azman Kasim¹*, Azhan Hashim¹, Syamsyir Akmal Senawi¹, Mardhiah Andullah¹, Noranizah Awang²,

 Nurbaisyatul Ermiza Suhaimi², Siti Nasuha Mohd Rafien²

 

¹Faculty of Applied Sciences,

Universiti Teknologi MARA Pahang, 26400 Jengka, Pahang, Malaysia

²Faculty of Applied Sciences,

UniverstitiTeknologi MARA, 40540 Shah Alam, Selangor, Malaysia

 

*Corresponding author: azman615@pahang.uitm.edu.my

 

 

Received: 23 November 2014; Accepted: 3 September 2015

 

 

Abstract

Five samples of tellurite glasses with the system of (78-x) TeO₂-10PbO- 10Li₂O-2Nd₂O₃-xEr₂O₃ where x = 0.0, 0.5, 1.0, 1.5, 2.0 mol % have been prepared by using the conventional melt-quenching method. In this work, the optical properties by mean of their up-conversion luminescence as well as the optical parameters related to Judd-Ofelt theory were measured. The result reveals that six distinctive up-converted bands contributed from Nd³⁺ ions are observed to be centered at 485 nm, 605 nm, 665 nm, 880 nm, 1062 nm and 1340 nm attributed from ⁴G_11/2 → ⁴I_11/2, ⁴G_11/2 → ⁴I_{15/2 ,} ⁴G_7/2 → ⁴I_13/2 , ⁴F_3/2 → ⁴I_13/2 , ⁴F_3/2 → ⁴I_11/2 and ⁴F_3/2 → ⁴I_9/2 transitions whereas, three upconverted bands contributed from Er³⁺ ions to be centered at 493 nm, 524 nm and 550 nm are found originating from ⁴F_7/2 → ⁴I_15/2, ²H_11/2 → ⁴I_15/2 and ⁴S_3/2 → ⁴I_15/2 transitions under the excitation at 585 nm. Meanwhile, the optical parameters according to Judd-Ofelt theory such as the radiative lifetime τ_R, stimulated emission cross-section σ_eff, and the non-radiative relaxation W _nr of the glass were found ranging from 0.812ms to 1.248ms, 0.812 x 10²⁰ cm² to 1.248 x 10²⁰ cm² and from 0.144 ms^-1 to 0.180 ms^-1 respectively with respect to mol% of composition . Further analysis and discussion will be elaborated in brief.

 

Keywords: up-conversion, excitation, Judd-Ofelt, radiative, relaxation

 

Abstrak

Lima sampel kaca tellurite dengan sistem (78-x) TeO₂-10PbO- 10Li₂O-2Nd₂O₃-xEr₂O₃ dimana x = 0.0, 0.5, 1.0, 1.5, 2.0 mol % telah disedia menggunakan kaedah sepuh-lindap konvensional. Dalam kerja ini, sifat-sifat optikal seperti pendarkilau pertukaran atas serta parameter optikal yang berkaitan dengan teori Judd-Ofelt telah diukur. Keputusan menunjukkan bahawa enam jalur pertukaran atas tersendiri sumbangan dari ion-ion Nd³⁺ telah dicerap berpusat di   485 nm, 605 nm, 665 nm, 880 nm, 1062 nm dan 1340 nm ditentukan dari transisi ⁴G_11/2 → ⁴I_11/2, ⁴G_11/2 → ⁴I_{15/2 ,} ⁴G_7/2 → ⁴I_13/2 , ⁴F_3/2 → ⁴I_13/2 , ⁴F_3/2 → ⁴I_11/2 and ⁴F_3/2 → ⁴I_9/2 manakala, tiga jalur pertukaran atas adalah sumbangan dari ion-ion Er³⁺ dijumpai berpusat di 493 nm, 524 nm and 550 nm hasil dari transisi  ⁴F_7/2 → ⁴I_15/2, ²H_11/2 → ⁴I_15/2 dan ⁴S_3/2 → ⁴I_15/2 di bawah pengujaan 585nm. Sementara itu, parameter optikal merujuk kepada teori Judd-Ofelt seperti jangkahayat radiasi τ_R, keratan rentas penyinaran terangsang σ_eff, dan relaksasi tak bersinar W _nr 0.812ms hingga 1.248ms, 0.812 x 10²⁰ cm² hingga 1.248 x 10²⁰ cm² dan dari 0.144 ms^-1 hingga 0.180 ms^-1 terhadap mol% komposisi. Analisa lanjut dan perbincangan akan dihurai dengan lebih lanjut.

 

Kata kunci: pertukaran-atas, pengujaan, Judd-Ofelt, penyinaran, relaksasi

 

References

1.       Kumar, K.U., Prahyusha,V.A., Babu, P., Jayashankar, C.K., Joshi, A.S., Spehgini, A. and Bettinelli, M. (2007). Fluorescence Properties of Nd³⁺ doped Tellurite Glasses,  Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy  67(3-4): 702 –708.

2.       Sahar, M. R., Yusoff, N. M., Ghoshal, S. K., Rohani, M. S., Hamzah, K. and Arifin, R. (2012), Luminescence Properties of Magnesium Phosphate Glass Doped samarium,  Advanced Materials Research 501: 111 – 115.

3.       Azman, K., Razali, W. A. W., Azhan, H. and Sahar, M. R. (2012). Luminescence Spectra of TeO₂-PbO-Li₂O Doped Nd₂O₃ Glass, Advanced Materials Research 501: 121 – 125.

4.       Jalasi, I., Elhouichet, H., Ferid M. (2011). Thermal and Optical Properties of Tellurite Glasses doped Erbium, Journal of Materials Science 46: 806 – 812.

5.       Ramos, F., Jaque, D., Romero,J., Garcia, S.J., Caldino, U.G. (1999). Optical Spectroscopy of Nd³⁺ in the Bi₁₂SiO₂₀ Piezoelectric Crystal Journal of Phyics: Condensed Matter  11: 3201 – 3207.

6.       Wade,S.A., Collins, S.F., Baxter, G.W., (2003), Fluorescence intensity ratio technique for optical fiber point temperature sensing, Jounal of Applied Physics 94: 4743

7.       Koepke, Cz., Wisniewski, K., Sikorski, L., Piatkowski, D., Kowalska, K. and Naftaly, M. (2006). Upconverted luminescence Under 800nm Laser Diode Excitation in Nd³⁺-activated Fluoroaluminate Glass, Journal of Optical Materials 28: 129 –136.

8.       Halimah, M. K., Daud, W. M. and Sidek, H. A. A. (2010). Elastic properties of TeO₂-B₂O₃-Ag₂O Glasses, Ionics 16:  807 – 813.

9.       Rao, T. V. R., Reddy, R. R., Nazeer Ahamad, Y., Parandamiah, M., Sooraj Hussain, N., Buddhudu, S. And Purandar, K. (2000). Luminescence Properties of Nd³⁺: TeO₂-B₂O₃- P₂O₅-Li₂O Glass Infrared Physics and Technology 41(4): 247 – 258.

10.    Nazabal V., Todoroki S., Nukui A., Matsumoto T., Suehara S., Hondo T., Araki T., Inuoe S., Rivero C. and Cardinal T., (2003). Oxyfluoride Tellurite Glasses Doped by Erbium: Thermal Analysis, Structural Organization and Spectral Properties, Journal of Non-Crystalline Solids 325: 85 –102.

11.    Kumar, K., Rai, S. B. and Anita Rai, (2008). Strong Blue Emission from Pr³⁺ Ions Through Energy Transfer Process from Nd³⁺ to Pr³⁺ via Yb³⁺ in Tellurite Glass.  Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 71: 508 – 512.

12.    Lakshminarayan, G., Yang,H. and Qiu, J. (2009). Photoluminescence of Pr³⁺, Nd³⁺ and Ni³⁺ doped TeO₂-ZnO-WO₃-TiO₂-Na₂O Glasses, Journal of Alloys and Compound 475(1-2): 569 – 576.

13.    Jayasimhadri, M., Rama Moorthy, L. and Ravikumar, R. V. S. S. N. (2007). An investigation of the optical properties of Nd3+ ions in alkali tellurofluorophosphate glasses, Optical Materials 29(11): 1321 –1326.

14.    Reza Dousti, M., Sahar, M. R., Ghoshal, S. K., Amjad, R. J. and Arifin, R. (2013). Plasmonic enhanced luminescence in Er³⁺: Ag co-doped tellurite glass, Journal of Molecular Structure 1033: 79 – 83.

15.    Azman, K., Razali, W. A. W., Azhan, H. and Sahar, M. R. (2012). Luminescence Spectra of TeO₂-PbO-Li₂O Doped Nd₂O₃ Glass, Advanced Materials Research 501: 121 – 125.

16.    Sudhakar Reddy, B., Vemasevana Raju, K., Sailaja, S., Nageswara Raju, C. and Sreekantha Reddy, D. (2010). Optical Characterization of Eu³⁺ and Tb³⁺ Ions Doped Zinc Lithium Borotellurite Glasses. Advanced Materials Research, 123-125: 1283 –1286.

17.    Ajith Kumar, G., Biju, P.R., Venugopal, C. and Unnikrishnan, N. V. (1997). Spectroscopic Parameters of  Nd³⁺ Ion in Phosphate Glasses . Journal of Non-Crystalline Solids 221: 47 – 58.

18.    Ryba-Romanowski, W. (1990). Effect of Temperature and Activator Concentration on Luminescence Decay of Erbium Doped Tellurite Glass. Journal of Luminescence 46: 163 – 172.

19.    Meisong, L., Tatsuya, Y., Lihui, H., Yusuke, A., Takenobu, S. and Yasutake, O. (2009) Relaxation Process of the ⁴I_13/2 level of Er³⁺ in Borosilicate Glass,  Journal of Non-Crystalline Solids 355(2): 96 – 100.