MUMBAI, India, Aug. 10 -- Intellectual Property India has published a patent application (202541091461 A) filed by Indian Institute Of Technology Hyderabad on September 24, 2025, for Photothermal Substance Comprising Imide-Containing Compound For Solar Steam Generation, And Device And Method Thereof.
Inventors include Kotagiri, Venkata Rao; and Nandgaye, Akash Shamrao.
The application for the patent was published on July 31, 2026, under issue no. 31/2026.
Abstract: The present invention relates to a photothermal substance comprising imide-containing compound. The photothermal substance comprises donor-acceptor units incorporating non-fluorescent imide-containing compounds. The present invention further provides an efficient solar thermal water purification/evaporation device using specially designed donor-acceptor photothermal substances. These substances are optimized for high solar absorption, minimal heat loss, and effective water transport, thereby enhancing solar steam generation (SSG). The imide-containing, non-fluorescent donor-acceptor compounds improve photothermal conversion efficiency, ensuring sustainable and efficient clean water production. The present invention further relates to a method based on the photothermal substance comprising imide-containing compound. The present invention has applications in solar-driven water evaporation/purification and other sustainable energy conversion technologies.
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