“M-Nano 2026 Leads the Global Nano Movement in Singapore”
Speaker: Oleg Dimitriev
Affiliation: V. Lashkaryov Institute of Semiconductor Physics
Title : Thermal energy upconversion using thermally-activated
delayed fluorescence materials
Thermal
radiation and heat represent a large portion of the energy produced in natural
and industrial environments. However, efficiently converting this heat into
useful energy forms such as electricity remains a major challenge. This
research introduces a promising approach using thermally activated delayed
fluorescence (TADF) materials to convert thermal energy into visible light.
Understanding the Research Focus
The study
explores how TADF materials can utilize heat as an assisting energy source to
produce visible light. This process can potentially improve the efficiency of
energy conversion systems and enable new applications in lighting and solar
technologies.
Thermal Energy Upconversion Mechanism
TADF
materials enable an electronic transition from the triplet energy state to the
singlet state with the assistance of thermal energy. This process allows
excited electrons to release energy as visible light, effectively converting
heat into optical energy.
Temperature-Enhanced OLED Performance
Experiments
conducted using TADF-based OLED devices show that increasing temperature
significantly improves device performance. When heated to around 50°C,
OLED electroluminescence increased up to six times under certain operating
conditions. Additionally, improvements in quantum efficiency and power
efficiency were observed.
Energy Conversion Applications
The
ability to convert heat into visible light could support future technologies in
energy harvesting, lighting systems, and renewable energy applications.
By capturing waste heat and transforming it into usable energy, this technology
could help improve overall energy efficiency.
Key Takeaway Strategy
Although high-temperature operation can present stability challenges, proper
thermal management strategies may enable practical applications of this
technology. TADF-based energy upconversion offers a promising pathway for
developing innovative and sustainable energy systems.
About the Author
Oleg Dimitriev is a physicist
specializing in the photophysics of organic dyes, conjugated polymers, and
advanced materials for energy conversion. He is a Senior Scientist at the V. Lashkaryov Institute of Semiconductor Physics,
part of the National Academy of Sciences of
Ukraine, and also serves as an Assistant Professor at the Igor Sikorsky Kyiv Polytechnic Institute. He
earned his Ph.D. in solid-state physics from Donetsk
State University in 1992. His research focuses on optoelectronic
materials, organic and hybrid heterostructures, and energy conversion systems.
Dr. Dimitriev has authored over 100
scientific publications and two popular science books.
Conference Details
2nd
Edition of International Congress on Materials Science and Nanotechnology
📅 November 23–25, 2026
📍 Singapore & Online
Register:
https://materials.miconferences.com/register
Submit Abstract: https://materials.miconferences.com/abstract-submission
📩 materials@mathewsconference.com
📞 +1 (312) 462-4448
💬 WhatsApp: +1 (424) 377 0967
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