Innovative Strategy for Infrared Radiation Control
Recent advancements in materials science have led to a groundbreaking strategy for managing infrared (IR) radiation. Researchers at the Centre for Nano and Soft Matter Sciences (CeNS) in Bengaluru have developed a novel approach using two-dimensional nanosheets of hexagonal boron nitride (h-BN). This innovative method has the potential to serve as a radiative heat barrier, enhance thermal camouflage, and improve thermal management applications.
Understanding Infrared Radiation
Infrared radiation is a type of electromagnetic radiation with wavelengths ranging from 780 nm to 1000 nm. It is a significant component of solar radiation, accounting for nearly 50% of the sun’s energy that reaches the Earth. While IR radiation is essential for sustaining life, excessive exposure can lead to discomfort and health issues. The challenge lies in effectively managing this radiation to reduce energy demands, particularly in air conditioning and heating systems.
The need for effective IR regulation has become increasingly important as global temperatures rise and energy consumption continues to soar. Researchers have been exploring various materials and methods to control IR radiation. The new strategy developed by the CeNS team represents a significant advancement in this field, offering a promising solution to the challenges posed by excessive IR exposure.
The Breakthrough: Hexagonal Boron Nitride Nanosheets
The innovative approach developed by the CeNS team involves the use of solution-processed two-dimensional nanoflakes of hexagonal boron nitride (h-BN). Dr. HSSR Matte and his student, Priyabrata Sahoo, led this research, focusing on the careful assembly of these nanoflakes within a polymer network liquid crystal. This unique combination allows for effective regulation of IR radiation while maintaining transparency in the individual components.
Dr. Krishna Prasad and Dr. Shankar Rao, who supervised the project, explained that the careful arrangement of these materials under specific conditions results in a device that excels in IR regulation. Each component of the multicomponent material is transparent to IR radiation, yet their strategic placement creates a highly effective barrier against unwanted heat. This breakthrough could revolutionize how we manage thermal energy in various applications.
Demonstrating Effectiveness and Future Applications
The effectiveness of this new IR regulation strategy has been demonstrated through various methods, including scattering measurements, thermal imaging, and passive radiative cooling. Numerical simulations conducted by Dr. Sikdar at IIT Guwahati further support the findings. The research team has confirmed that the new system exhibits significantly higher mechanical strength, as shown by nanoindentation studies.
Gayathri Pishorady, a primary researcher on the project, envisions this strategy as a more generic way to develop IR regulators. The implications of this research extend beyond just thermal management; it could also enhance energy efficiency in buildings and vehicles, improve comfort in living spaces, and contribute to advancements in thermal camouflage technologies.
The findings of this research have been published in the journal Materials Horizons, and a patent application has been filed, indicating the potential for commercial applications in the near future.
Conclusion
The innovative strategy developed by the CeNS team represents a significant step forward in the field of materials science and thermal management. By utilizing hexagonal boron nitride nanosheets, researchers have created a highly effective method for regulating infrared radiation. This advancement not only addresses the challenges posed by excessive IR exposure but also opens up new possibilities for energy efficiency and thermal management in various applications. As this research continues to evolve, it holds promise for a more sustainable and comfortable future.
Observer Voice is the one stop site for National, International news, Editor’s Choice, Art/culture contents, Quotes and much more. We also cover historical contents. Historical contents includes World History, Indian History, and what happened today. The website also covers Entertainment across the India and World.