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(Photo : American Public Power Association on Unsplash)
Authorities in Singapore consider whether it is feasible to dig deeper underground to create new space for infrastructure, storage, and utilities. As a result, demand for 24-hour underground lighting is expected to increase in the future.
The NTU team took inspiration from the magnifying glass, which can be used to focus sunlight into a single point, to develop a daylight harvesting device that can meet this need in the long run.
The device, which was developed by Assistant Professor Yoo Seongwoo of the School of Electrical and Electronics Engineering and Dr. Charu Goel of NTU s The Photonics Institute, was published in the peer-reviewed scientific journal Solar Energy earlier this month.