1. K. Tennakone, G. R. R. A. Kumara, K. G. U. Wijayantha, I. R. M. Kottegoda, V. P. S. Perera and G. M. L. P. Aponsu (1997) Nano-porous solid-state photovoltic cell sensitized with Copper chlorophyllin “Journal of photochemistry and photobiology A: chem.”, 108 (2), 175-177
2. K. Tennakone, G. R. R. A. Kumara, K. G. U. Wijayantha, I. R. M. Kottegoda, V. P. S. Perera and G. M. L. P. Aponsu (1998) Nano-porous solid-state photovoltic cell sensitized with tannin “Semiconductor Science and Technology”, 13 (1), 134-138
3. K. Tennakone, G. R. R. A. Kumara, I. R. M. Kottegoda, V. P. S. Perera, G. M. L. P. Aponsu and K. G. U. Wijayantha (1998) Deposition of thin conducting films of CuI on glass “Solar Energy Materials and Solar Cells”, 55 (3), 284-289
4. K. Tennakone, G. R. R. A. Kumara, I. R. M. Kottegoda, V. P. S. Perera and G. M. L. P. Aponsu (1998) Nano-porous n-TiO₂ / selenium/ p-CuCNS Photovoltic Cells “Journal of Applied Physics D: Applied Physics”, 31 (18), 2326-2330
5. T. R. C. K. Wijayarathna, G. M. L. P. Aponsu, Y. P. Y. P. Ariyasinghe, E. V. A. Premalal, G. K. R. Kumara and K. Tennakone (2008) A high efficiency indoline-sensitized solar cell based on a nanocrystalline TiO₂ surface doped with copper ‘Nanotechnology’, 19 (48), 485703-485708
6. K. Tennakone, G. M. L. P. Aponsu, Y. P. Y. P. Ariyasinghe, R. C. Buchanan, V. P. S. Perera, H. Tennakone and T. R. C. K. Wijayarathna (2010) Dye-Sensitized Solar Cells Based on Nanostructured Semiconductor Oxide Ceramics with Ultra-Thin Barrier Layers ‘Integrated Ferroelectrics’ 115 (1), 120-131
7. G. M. L. P. Aponsu, T. R. C. K. Wijayarathna, I. K. Perera, V. P. S. Perera and A. C. P. K. Siriwardhana (2013) The Enhancement of Photovoltaic Parameters in Dye-sensitized Solar Cells of Nano-crystalline SnO₂ by incorporating with large SrTiO₃ Particles ‘Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy’ 109, 37-41

1. A. C. P. K. Siriwardhana, R. G. N Meegama and G. M. L. P. Aponsu (2011) Harmful noise intensity level pre determination system for noise generated sources. ‘International Journal of Mechanics and Thermodynamics ’, 2 (2), 95-100
2. G. M. L. P. Aponsu (2004) Performance of the Dye-sensitized solid-state photovoltaic solar cell depending on the cluster size of TiO₂ electrode “ Sabaragamuwa University Journal ”, 4, 80-88
3. G. M. L. P. Aponsu, R. C. L. De Silva and V. P. S. Perera (2008) Enhanced photovoltaic effects of dye-sensitized solar cells of SnO₂ surface modified with gold nano particles ‘Sri Lankan Journal of Physics’, 09, 27-34

1. K. Tennakone, G. R. R. A. Kumara, I. R. M. Kottegoda, K. G. U. Wijayantha, V. P. S. Perera and G. M. L. P. Aponsu (1997) The photo-stability of Dye-sensitized solid-state photovoltaic cell: Nano-porous n-TiO₂/Cyanidin/p-CuI In : proceedings of the workshop on low cost electronic materials and solar cells, Colombo, Sri Lanka,111-115
2. K. Tennakone, G. R. R. A. Kumara, K. G. U. Wijayantha, I. R. M. Kottegoda, V. P. S. Perera and G. M. L. P. Aponsu (1997) Copper Chlorophyllin Sensitized Nano-Porous Solid-State Photovoltaic Cell In : proceedings of the workshop on low cost electronic materials and solar cells, Colombo, Sri Lanka, 117-120
3. K. Tennakone, G. M. L. P. Aponsu, G. R. R. A. Kumara, I. R. M. Kottegoda, V. P. S. Perera and K. G. U. Wijayantha (1997) A nano-porous solid-state photovoltaic cell sensitized with Tannin In: Proceeding of the 53^rd Annual sessions of the Sri Lanka Association for the Advancement of Science (SLAS), 289
4. K. Tennakone, I. R. M. Kottegoda, G. R. R. A. Kumara, K. G. U. Wijayantha, V. P. S. Perera and G. M. L. P. Aponsu (1997) A nano-porous solid-state photovoltaic cell sensitized with Delphinidin In: Proceeding of the 53^rd Annual sessions of the Sri Lanka Association for the Advancement of Science (SLAS), 288
5. K. Tennakone, G. R. R. A. Kumara, I. R. M. Kottegoda, V. P. S. Perera and G. M. L. P. Aponsu (1998) Nano-porous n-TiO₂/selenium/p-CuCNS photovoltaic cell In: Proceeding of the 54^th Annual sessions of the Sri Lanka Association for the Advancement of Science (SLAS), 261
6. N. L. Dediyagala, G. M. L. P. Aponsu, J. A. P. Bodhika, R. A. S. Saraj Gunasekara and K. P. S. Chandana Jayarathne (2004) Generation of Hertzsprung-Russel (H-R) diagram using Pleiades Cluster stars to assess the suitability of ACCIMT telescope for photometric studies In: Proceeding of the 60^rd Annual sessions of the Sri Lanka Association for the Advancement of Science (SLAS), 211
7. K. Tennakone, G. M. L. P. Aponsu, Y. P. Y. P. Ariyasinghe, T. R. C. K. Wijayarathna, E. V. A. Premalal, M. K. I. Senevirathne, A. G. U. Perera and P. V. V. Jayaweera (2008) Dye-sensitized solar cells based on nanocrystalline TiO₂: The nature of recombination losses and methods of their suppression In 17^th International conference on photochemical conversion and storage of solar energy, Sydney, Australia, 61
8. G. M. L. P. Aponsu and V. P. S. Perera (2010) Enhancement of the photovoltaic properties of dye-sensitized solar cells by incorporation of gold nano-particles on to SnO₂ Films In 3^rd International Symposium on new horizons in humanities & sciences towards sustainable development, Sabaragamuwa University of Sri Lanka (SUSL), 166
9. L. M. M. De Silva, G. M. L. P. Aponsu, V. Fernando, J. C. N. Rajendra and V. P. S. Perera (2014) Performance of dye-sensitized solar cells coated with an ultra thin layer of SiO₂ around SnO₂ particles In Annual Academic Sessions 2014, Open University of Sri Lanka, 324-327
10. L. M. M. De Silva, G. M. L. P. Aponsu, V. P. S. Perera, I. K. Perera and A. C. P. K. Siriwardhana (2016) Composite SnO₂/ ZrO₂ Dye-sensitized Photo Electrochemical Solar Cells ‘16^th Science Council of Asia Conference on Science for the People: Mobilizing Modern Technologies for Sustainable Development in Asia’ 277-282
11. N. F. Ajward, N. R. A. M. Ruwangika, G. M. L. P. Aponsu, D. L. N. Jayathilaka, J. C. N. Rajendra and V. P. S. Perera (2016) Properties of Composite Films made of Tin (IV) Oxide and Silica Analyzed with Electrochemical Techniques ‘Proceedings of the Technical Sessions, Institute of Physics – Sri Lanka’ 32, 9-15
12. G. C. Wickramasinghe, S. D. M. Rosa, G. M. L. P. Aponsu and V. P. S. Perera; Exploration of Natural Dye Extracted from Annato Seeds to Fabricate Dye Sensitized Solar Cell, In Annual Academic Sessions 2016, Open University of Sri Lanka, 122-125
13. L. M. M. De Silva, J. A. P. Bodhika, G. M. L. P. Aponsu, P. D. D. I. Gunathilak; (2017) Designing of an Anechoic Chamber for Research Applications ‘40^th IRF International Conference’, 7-9
14. H. D. C. N. Gunawardana, G. M. L. P. Aponsu and V. P. S. Perera (2017) Fabrication of Dye Sensitized Solar Cells using Nano Composites made of SiO₂ Extracted from Rice Husk ‘07^th Annual Research Session of the Sabaragamuwa University of Sri Lanka’, 35
15. A. M. K. L. Abeykoon, G. M. L. P. Aponsu, H. M. B. I. Gunathilaka and H. A. Vimal Nadeera (2018); Effect of Temperature on the Photovoltaic Characteristics of Polycrystalline Silicon Solar cells at Hambantota Solar Power Plant Solar Asia 2018, 4^th Int. Conf. National Institute of Fundamental Studies, Kandy, Sri Lanka, 4-6 January 2018; 275-280
16. P. A. M. M. Kumara, L. M. M. De Silva and G. M. L. P. Aponsu; (2018) Effect of Sound on the Staphylococcus Aureus Bacterium, ‘RISTCON 2018: 5^th Ruhuna International Science and Technology Conference -2018’, 56
17. J. A. D. M. Dharmathilaka, L. M. M. De Silva and G. M. L. P. Aponsu; (2018) Effect of Sound Frequencies of 500 Hz, 20 kHz and 75 kHz on the Growth of Green Gram Plants, ‘RISTCON 2018: 5^th Ruhuna International Science and Technology Conference -2018’, 102
18. L. M. M. De Silva, J. A. P. Bodhika, G. M. L. P. Aponsu and P. D. D. I. Gunathilaka (2018) Designing of an Anechoic Chamber for Research Applications ‘Proceedings of 40^th IRF International Conference – India 2018’, 7-9

• President’s Award for Scientific Publication in 2008 - January 2014
• NRC Merit Award for Scientific Publication in 2013 - November 2015

Lasantha Aponsu (2014). "ADVANCED SOLID STATE PHYSICS" Unit I Crystal Structure Properties, ISMN 978-955-23-1486-5,

Open University of Sri Lanka, Nawala, Nugegoda, Sri Lanka

Faculty Coordinator, Faculty of Applied Sciences related to Bachelor of Engineering Technology (BET) Degree Program from May 2015 to April 2017