Publications : Me E Coetsee

1. E. Coetsee, H. C. Swart and J. J. Terblans, Degradation of Y₂SiO₅:Ce phosphor powders, J. Lumin, 126(1) (2007) 37. (Best M.Sc publication in the CMPMS division at SAIP 2007).


2. E. Coetsee, H. C. Swart, J. J. Terblans, O. M. Ntwaeaborwa, K. T. Hillie, W. A. Jordaan and U. Buttner, Characterization of Y₂SiO₅:Ce thin films, Opt. Mat, 29(11) (2007) 1338.


3. E. Coetsee, H. C. Swart and J. J. Terblans, Cathodoluminescence degradation of Y₂SiO₅:Ce thin films, JVST A, 25(4) (2007) 1226.


4. H. C. Swart, J. J. Terblans, E. Coetsee, O. M. Ntwaeaborwa, M. S. Dhlamini, S. Nieuwoudt and P. H. Holloway, Review on electron stimulated surface chemical reaction mechanism for phosphor degradation, JVST A, 25(4) (2007) 917.


5. E. Coetsee, J. J. Terblans, H. C. Swart, Degradering van Y₂SiO₅:Ce fosforpoeier,  Die Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie (SAAWK), 26(2) (2007) 151.


6. J. J. Dolo, J. J. Terblans, B. F. Dejene, O. M. Ntwaeaborwa, E. Coetsee and H. C. Swart, Degradation of commercially Gd₂O₂S:Tb phosphor, Phys.Stat.Sol. (c), 5(2) (2008) 594.


7. E. Coetsee, J. J. Terblans and H. C. Swart, Y₂SiO₅:Ce thin films grown by PLD, Phys.Stat.Sol. (c), 5(2) (2008) 634.


8. S. B Mishra, A. K. Mishra, A. S. Luyt, N. Revaprasadu, K. T. Hillie, W. J. v. d. M. Steyn, E. Coetsee and H. C. Swart, Ethyl vinyl acetate copolymer - SrAl₂O₄:Eu,Dy and Sr₄Al₁₄O₂₅:Eu,Dy phosphors based composites: Preparation and Material properties, Polymer Composites, J. Appl. Polymer. Sci, 115 (2010) 579.


9. H. C. Swart, E. Coetsee, J. J. Terblans, J. M. Fitz-Gerald and J. R. Botha, Luminescence of Y₂SiO₅:Ce nanocrystalline thin films, EJSSNT, 7 (2009) 369.


10. S. B. Mishra, A. K. Mishra, N. Revaprasadu, K. T. Hillie, W. J. v. d. M. Steyn, E. Coetsee and H. C. Swart, Strontium Aluminate/Polymer Composites: Morphology, Luminescent Properties, and Durability, J. Appl. Polymer. Sci, 112(6) (2009) 3347. 


11. H. C. Swart, J. J. Terblans, O. M. Ntwaeaborwa, E. Coetsee, B. M. Mothudi and M. S. Dhlamini, Photon emission mechanisms of different phosphors, Nucl. Instr. and Meth. B, 267 (16) (2009) 2630.


12. E. Coetsee, J. R. Botha, J. J. Terblans en H. C. Swart, Luminesserende eienskappe van Y₂SiO₅:Ce nano-dunlagies, Die Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie (SAAWK), 27(2) (2008) 146.


13. S. Nieuwoudt, J. J. Terblans, J. Ngaruiya, O. M. Ntwaeaborwa, E. Coetsee, K. T. Hillie en H. C. Swart, Luminessensie-eienskappe van SrAl₂O₄:Eu²⁺, Dy³⁺ fosfor, Die Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie (SAAWK), 27(2) (2008) 154.


14. D. B. Bem, H. C. Swart, A. S. Luyt, E. Coetsee, F. B. Dejene, Properties of Green SrAl₂O₄ Phosphor in LDPE and PMMA Polymers, J. Appl. Polymer. Sci, accepted March 2009. APP-2009-02-0338.


15. E. Coetsee, J. J. Terblans and H. C. Swart, Characteristic properties of Y₂SiO₅:Ce thin films grown with PLD, Physica B, 404 (2009) 4431.


16. H. C. Swart, E. Coetsee, J. J. Terblans and O. M. Ntwaeaborwa, Luminescent mechanism of Y₂SiO₅:Ce phosphor powder, Physica B, 404 (2009) 4426.


17. P. D. Nsimama, O. M. Ntwaeaborwa, E. Coetsee and H. C Swart, The influence of the number of pulses on morphological and photoluminescence properties of SrAl₂O₄:Eu²⁺, Dy³⁺ thin films prepared by pulsed laser deposition, Physica B, 404 (2009) 4489.


18. O. M. Ntwaeaborwa, P. D. Nsimama, J. T. Abiade, E. Coetsee and H. C Swart, The effect of substrate temperature and oxygen pressure on the structure and photoluminescence properties of pulsed laser deposited SrAl₂O₄:Eu²⁺,Dy³⁺ thin films, Physica B, 404 (2009) 4436.


19. L. F. Koao, H. C. Swart, E. Coetsee, M. M. Biggs and F. B. Dejene, The effect of Mg²⁺ ions co-doping on the structural and optical properties Ce³⁺ doped Silica glasses, Physica B, 404 (2009) 4499.


20. E. Coetsee, J. J. Terblans and H. C. Swart, The growth of Y₂SiO₅:Ce thin films with pulsed laser deposition, 10^th International Conference on Laser Ablation (COLA 2009), accepted January 2010.


21. H. C. Swart, E. Coetzee, J. J. Terblans, O. M. Ntwaeaborwa, P. D. Nsimama and J. J. Dolo, Cathodoluminescence degradation of PLD thin films, 10^th International Conference on Laser Ablation (COLA 2009), submitted November 2009.


22. H. C. Swart, J. J. Terblans, E. Coetsee, V. Kumar, O. M. Ntwaeaborwa and M. M. Biggs, Auger Electron Spectroscopy and X-ray Photoelectron Spectroscopy study of the electron stimulated surface chemical reaction mechanism for phosphor degradation, submitted August 2009.


23. J. J. Dolo, O. M. Ntwaeaborwa, J. J. Terblans, E. Coetsee, B. F. Dejene, M-M Biggs and H.C. Swart, The effect of oxygen pressure on the structure, morphology and photoluminescence intensity of pulsed laser deposited Gd₂O₂S:Tb³⁺ thin film phosphor, 10^th International Conference on Laser Ablation (COLA 2009), accepted January 2010.

Proceedings:

1. E. Coetsee, H. C. Swart, J. J. Terblans, O. M. Ntwaeaborwa, K. T. Hillie, W. A. Jordaan and U. Buttner, Characterization (EDS, SEM AND AFM) of Y₂SiO₅:Ce thin films grown with PLD, Proceedings of the 45^th Annual Conference of the Microscopy Society of Southern Africa, 36 (2006) 31.


2. H. C. Swart,  B. M. Mothudi, S. Nieuwoudt, J. J. Terblans, E. Coetsee, O. M. Ntwaeaborwa, Luminescent properties and degradation of SrAl_xOy:Eu²⁺,Dy³⁺ phosphors, Proceedings - 14^th International Workshop on Inorganic and Organic Electroluminescence & 2008 International Conference on the Science and Technology of Emissive Displays and Lighting, 367.

Conferences:

SAIP:

1. E. Coetsee, J. J. Terblans, O. M. Ntwaeaborwa, U. Buttner and H. C. Swart, Characterization of Pulsed Laser Ablated Cerium doped Yttrium Silicate (Y₂SiO₅:Ce) thin films on Si (100), SAIP Pretoria 2005.


2. E. Coetsee, H. C. Swart, J. J. Terblans, O. M. Ntwaeaborwa, K. T. Hillie, W. A. Jordaan and U. Buttner, Cathodoluminescence of Y₂SiO₅:Ce thin films, SAIP UWC 2006. (Best M.Sc poster in the CMPMS devision).


3. E. Coetsee, H. C. Swart and J. J. Terblans, Degradation of Y₂SiO₅:Ce phosphor powders, SAIP UWC 2006.


4. E. Coetsee, J. J. Terblans and H. C. Swart, Luminescent properties of Y₂SiO₅:Ce thin films, SAIP Wits 2007.


5. S. Nieuwoudt, J. J. Terblans, O. M. Ntwaeaborwa, E. Coetsee, K. T. Hillie and H. C. Swart, Luminescent properties of nanoparticle SrAl₂O₄:Eu²⁺,Dy³⁺ phosphor, SAIP Wits 2007.


6. J. J. Dolo, J. J. Terblans, E. Coetsee, B. F. Dejene and H. C. Swart, Degradation of Gd₂O₂S:Tb phosphor, SAIP Wits 2007.


7. P. D. Nsimama, O. M. Ntwaeaborwa, E. Coetsee and H. C Swart, The changes on properties of pulsed laser ablated SrAl₂O₄:Eu²⁺, Dy³⁺ thin films with the deposition parameters; a case of working atmosphere, SAIP UKN Durban, July 2009.


8. L. F. Koao, H. C. Swart, E. Coetsee, M. M. Biggs and F. B. Dejene, The effect of temperature on the photoluminescence characteristics of Ce;Al or Ce;Mg doped SiO₂. Durban, July (2009).

International and other:

1. E. Coetsee, H. C. Swart, J. J. Terblans O. M. Ntwaeaborwa, K. T. Hillie and U. Buttner, Energy Dispersive Spectroscopy (EDS), Scanning Electron (SEM) and Atomic Force Microscopy (AFM) of Y₂SiO₅:Ce thin films, MSSA at NMMU December 2006.


2. H. C. Swart, J. J Terblans, E. Coetsee, O. M. Ntwaeaborwa, M. S. Dhlamini and P. H. Holloway, A short review on the ESSCR mechanism for phosphor degradation, AVS 53^rd International Symposium & Exhibition, San Francisco, CA, USA, 12- 17 November 2006.


3. E. Coetsee, J. J. Terblans and H. C. Swart, Cathodoluminescence Degradation of Y₂SiO₅:Ce Thin Films, AVS 53^rd International Symposium & Exhibition, San Francisco, CA, USA, 12 - 17 November 2006.


4. E. Coetsee, H. C. Swart en J. J. Terblans, Degradering van Y₂SiO₅:Ce fosfor poeiers, Afrikaanse studente symposium, SAAWK by Noordwes Universiteit, 2 November 2006. (Mathematica prize.)


5. E. Coetsee, H. C. Swart and J. J. Terblans, Y₂SiO₅:Ce thin films grown by PLD Kariega 2007, Conference on Photonic Materials, Kariega Game Reserve, South Africa, 2 - 6 May 2007.


6. J. J. Dolo, J. J. Terblans, B. F. Dejene, E. Coetsee and H. C. Swart, Degradation of commercially Gd₂O₂S:Tb phosphor. Kariega 2007, Conference on Photonic Materials, Kariega Game Reserve, South Africa, 2 - 6 May.


7. O. M. Ntwaeaborwa, J. M. Ngaruiya, E. Coetsee, H. C. Swart, Enhanced luminescence of SiO₂:Tb³⁺ induced by an energy transfer from encapsulated ZnO nanoparticles, International Center for Materials Research (ICMR), Zululand, 29th July-1st August 2007.


8. E. Coetsee, J. R. Botha, J. J. Terblans en H.C. Swart, Luminesserende eienskappe van Y₂SiO₅:Ce nano dun films, Afrikaanse studente symposium, SAAWK TUT Pretoria, 2 November 2007.  (Mathematica prize.)


9. S. Nieuwoudt, J. J. Terblans, J. Ngaruiya, O. M. Ntwaeaborwa, E. Coetsee, K. T. Hillie en H. C. Swart, Luminessensie-eienskappe van SrAl₂O₄:Eu²⁺, Dy³⁺ fosfor, Afrikaanse studente symposium, SAAWK TUT Pretoria, 2 November 2007.


10. J. M. Ngaruiya, O. M. Ntwaeaborwa, E. Coetsee and H. C. Swart, African Material Research Society conference, Dar es Salaam Tanzania, December 2007.


11. H. C. Swart, E. Coetsee, J. J. Terblans, J. M. Fitz-Gerald and J. R. Botha, Luminescence of Y₂SiO₅:Ce nanocrystalline thin films, 14^th International Conference on Solid Films and Surfaces, Trinity College, Dublin, Ireland, 29^th June - 4^th of July 2008.


12. H. C. Swart, B. M. Mothudi, S. Nieuwoudt, J. J. Terblans, E. Coetsee, O. M. Ntwaeaborwa, Luminescent properties and degradation of SrAl_xOy:Eu^2+,Dy³⁺ phosphors, 14^th International Workshop on Inorganic and Organic Electroluminescence & 2008 International Conference on the Science and Technology of Emissive Displays and Lighting, Bagni di Tivoli, Rome, Italy, 9-12 September 2008.


13. H. C. Swart, J. J. Terblans, O. M. Ntwaeaborwa, E. Coetsee and M. S. Dhlamini, Photon emission mechanisms of different phosphors, 23^th ICACS (International Conference on Atomic Collisions in Solids), Phalaborwa, Limpopo province of South Africa, 17 - 22 August 2008.


14. E. Coetsee, J. J. Terblans en H. C. Swart, Luminesserende meganisme van yttriumsilikaat gedoteer met serium (Y₂SiO₅:Ce) fosfor poeier, Afrikaanse studente simposium, SAAWK UJ, 31 Oktober 2008. (Mathematica prize.)


15. E. Coetsee, J. J. Terblans and H. C. Swart, Characteristic properties of Y₂SiO₅:Ce thin films grown with PLD, 3^rd South African Conference on Photonic Materials (SACPM 2009) Mabula March 2009.


16. H. C. Swart, E. Coetsee, J. J. Terblans and O. M. Ntwaeaborwa, Luminescent mechanism of Y₂SiO₅:Ce phosphor powder, 3^rd South African Conference on Photonic Materials (SACPM 2009), Mabula, March 2009.


17. O. M. Ntwaeaborwa, P. D. Nsimama, E. Coetsee and H. C Swart, The effect of substrate temperature and oxygen pressure on the structure and photoluminescence properties of pulsed laser deposited SrAl₂O₄:Eu²⁺,Dy³⁺ thin films, 3^rd South African Conference on Photonic Materials (SACPM 2009) Mabula, March 2009.


18. P. D. Nsimama, O. M. Ntwaeaborwa, E. Coetsee and H. C Swart, The influence of the number of pulses on morphological and photoluminescence properties of SrAl₂O₄:Eu²⁺, Dy³⁺ thin films prepared by pulsed laser deposition, 3^rd South African Conference on Photonic Materials (SACPM 2009) Mabula, March 2009.


19. L. F. Koao, H. C. Swart, E. Coetsee, M. M. Biggs and F. B. Dejene, The effect of Mg²⁺ ions co-doping on the structural and optical properties Ce³⁺ doped Silica glasses, 3^rd South African Conference on Photonic Materials (SACPM 2009) Mabula, March 2009.


20. E. Coetsee, J. J. Terblans and H. C. Swart, The growth of Y₂SiO₅:Ce thin films with pulsed laser deposition, 10^th International Conference on Laser Ablation (COLA 2009) Singapore, November 22-27.


21. H. C. Swart, E. Coetzee, J. J. Terblans, O. M. Ntwaeaborwa, P. D. Nsimama and J. J. Dolo, Cathodoluminescence degradation of PLD thin films, 10^th International Conference on Laser Ablation (COLA 2009) Singapore, November 22-27.


22. J. J. Dolo, H. C. Swart, J. J. Terblans, E. Coetsee, O. M. Ntwaeaborwa and B. F. Dejene, Effect of oxygen pressure on structural properties of pulsed laser deposition Gd₂O₂S: Tb thin films, International Conference on Nanotechnology and Advanced Materials 2009. (ICNAM 2009), University of Bahrain, 4 to 7 May 2009.


23. A. G. Ali, H. C. Swart, J. R. Botha, E. Coetsee, M. M.  Biggs and F. B. Dejene, Structural and optical properties of ZnO, SiO₂:Ce ³⁺ and ZnO:SiO₂:Ce³⁺ nano-particles prepared by a Sol-Gel process, International Conference on Nanotechnology and Advanced Materials 2009. (ICNAM 2009), University of Bahrain, 4 to 7 May 2009.


24. H. C. Swart, J. J. Terblans, E. Coetsee, V. Kumar, O. M. Ntwaeaborwa and M. M. Biggs, Auger Electron Spectroscopy and X-ray Photoelectron Spectroscopy study of the electron stimulated surface chemical reaction mechanism for phosphor degradation. Ecasia09, 13^th European Conference on Applications of Surface and Interface Analysis, Antalya, Turkey, October 18-23, 2009.


25. J. J. Dolo, O. M. Ntwaeaborwa, J. J. Terblans, E. Coetsee, B. F. Dejene, M-M Biggs and H.C. Swart, The effect of oxygen pressure on the structure, morphology and photoluminescence intensity of pulsed laser deposited Gd₂O₂S:Tb³⁺ thin film phosphor, 10^th International Conference on Laser Ablation (COLA 2009) Singapore, November 22-27.