Q DOT LABS (PVT) LTD.
Research, Innovation and Technology Development in Advanced Nanomaterials, Functional Materials and Sustainable Energy Technologies
Q DOT LABS (PVT) LTD [QDL] is a Sri Lankan research and technology development company focused on advanced functional materials, sustainable nanomaterials, and energy technologies. Its expertise includes carbon quantum dots, graphene quantum dots, photophysical materials, and biomass-derived nanomaterials. Q Dot Labs combines sustainable material synthesis, characterization, and technology development to convert local resources into value-added materials, while collaborating with academic, international, and industrial partners to advance innovative and scalable technologies.
Turning Local Resources into High-Value Materials
Who We Are
Q DOT LABS (PVT) LTD [QDL] is a Sri Lankan research and technology development company focused on advanced functional materials, sustainable nanomaterials, and energy technologies Combining sustainable material synthesis, characterization, and technology development to convert local resources into value-added materials. Its expertise includes carbon quantum dots, graphene quantum dots, photophysical materials, and biomass-derived nanomaterials.
Our Vision
To develop scientifically rigorous, sustainable and commercially relevant advanced-material technologies that address energy, environmental and resource utilization challenges.
Our Mission
Q Dot Labs (PVT) Ltd. is committed to advancing sustainable research and technology through the development of innovative functional materials, nanomaterials, and energy technologies, while transforming local resources into high-value solutions through scientific research, international collaboration, and technology development for industrial and societal applications.
Research & Development
Sustainable Materials
- Biomass valorization
- Agricultural and industrial residue utilization
- Waste-to-value materials
- Circular resource utilization
- Environmentally responsible synthesis
Advanced Carbon Nanomaterials
- Carbon Quantum Dots (CQDs)
- Graphene Quantum Dots (GQDs)
- Functional carbon nanomaterials
- Biomass-derived carbon nanomaterials
Energy Materials
- Sodium-ion battery materials
- Lead-acid battery materials
- Electrochemical energy-storage materials
Our Team
SWCEO / MDEng. L. W. D. Suransilu Weeraratne
CEO / Managing Director
NDES – Civil Engineering, Institute of Engineering Technology (1999)
Qualifications & Appointments
Academic Qualifications
- National Diploma in Engineering Sciences (NDES) – Civil Engineering, Institute of Engineering Technology – 1999
Professional Appointments
- Managing Director, Q DOT LABS (PVT) LTD : 2025 – present
- Board Member, Industrial Technology Institute : 2025 – present
- Managing Director, Glitz Park (PVT) Ltd : 2005 – present
- Managing Director, Dewee Construction (PVT) Ltd : 2000 – present
- Instructor in Surveying Science, Institute of Engineering Technology : 2000 – 2001
SMSUPERVISOR IProf. S. Malavipathirana
Supervisor
Analytical Chemistry, Environmental Chemistry and Applications, Radiation Processing for Environmental Applications, Laboratory Quality Management, Chemico-economic impact, Aquatic Chemistry.
Qualifications & Appointments
Academic Qualifications
- PhD (Analytical Chemistry), Postgraduate Institute of Science, University of Peradeniya, Sri Lanka – 2017
- M.Phil (Chemical Science), Postgraduate Institute of Science, University of Peradeniya, Sri Lanka – 2001
- B.Sc. (Honours) in Chemistry, University of Peradeniya, Sri Lanka – 1994
Professional Appointments
- Supervisor, Q DOT LABS (PVT) LTD : 2025 – present
- Chairman, Industrial Technology Institute : 2024 – present
- Senior Lecturer, Department of Physical Sciences and Technology, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka : 2009 – present
- Senior Research Officer, Industrial Technology Institute : 2007 – 2009
- Research Officer, Ceylon Institute of Scientific and Industrial Research / Industrial Technology Institute, Sri Lanka : 1997 – 2007
- Research Assistant, Faculty of Science, University of Peradeniya, Sri Lanka : 1994 – 1997
SSSUPERVISOR IIProf. S. D. A. Sandanayaka
Supervisor
Nanoscience and Technology, Photochemistry, Photophysics, Electrochemistry, Supramolecular Chemistry, Carbon Nanomaterials, Organic Light-Emitting Devices (OLEDs), Organic Quantum Dots and Organic Lasers.
Qualifications & Appointments
Academic Qualifications
- PhD (Chemistry), Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Japan : 2007
- M.Sc. (Chemistry), Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Japan : 2004
- B.Sc. (Honours) in Chemistry, Faculty of Applied Science, University of Sri Jayewardenepura, Sri Lanka : 1996
Professional Appointments
- Supervisor, Q DOT LABS (PVT) LTD : 2025 – present
- Director General / CEO, Industrial Technology Institute, Sri Lanka : 2026 – present
- Board Member, Industrial Technology Institute, Sri Lanka : 2024 – 2026
- Professor (Chair), Department of Physical Sciences & Technology, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka : 2020 – present
- Professor, OPERA, Kyushu University, Faculty of Engineering : 2018 – 2020
- Associate Professor, OPERA, Kyushu University, Faculty of Engineering : 2016 – 2018
- Senior Lecturer, Faculty of Applied Science, University of Sri Jayewardenepura, Sri Lanka : 2010
- Lecturer, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka : 1998 – 2007
JHRESEARCH ASST.Mr. J. N. Hathwella
Research Assistant
Nanoscience and Technology, Carbon Quantum Dots, Graphene Quantum Dots, Energy Storage Devices, Carbon nanomaterials, Advanced battery technology, optoelectronic materials.
Qualifications & Appointments
Academic Qualifications
- M.Phil (Reading), Faculty of Graduate Studies, Sabaragamuwa University of Sri Lanka : 2026 – present
- B.Sc. (Honours) in Chemical Technology, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka : 2025
Professional Appointments
- Research Assistant, Q DOT LABS (PVT) LTD : April 2026 – present
- Temporary Demonstrator, Department of Physical Sciences and Technology, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka : 2025 – March 2026
Mr. Asiri Hewawasam
HR Manager
Projects
Carbon Quantum Dots – Hydrothermal Synthesis
Preparation of carbon quantum dots from hydrothermal synthesis route, purification and optimization.
Graphene Quantum Dots – Electrochemical Exfoliation
Preparation of graphene quantum dots from electrochemical exfoliation.
CQD-Incorporated Lead-Acid Battery Materials
Development of carbon quantum dot incorporated battery materials for lead-acid batteries.
Sodium-Ion Battery Materials
Development of sodium ion battery materials.
Programmable High-Temperature Furnace
Development of a programmable high temperature furnace.
Low-Cost Pyrolysis Kiln
A low-cost pyrolysis kiln that has already been developed.
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