News sources have recently reported about NTU EEE Professor Sun Xiaowei‘s breakthrough research which led to the development of “a smart window which can darken or brighten without the need for an external power source. This unique self-tinting window requires zero electricity to operate and is also a rechargeable battery.” Current window solutions in the market use permanent tinting or use external power to change light transmission properties. “The NTU smart window however can be turned into a cool blue tint in bright daylight, cutting light penetration by about half, and then reverts back to clear glass at night or as required.” [NTU News]
“Our new smart electrochromic window is bi-functional; it is also a transparent battery,” Prof Sun explained. “It charges up and turns blue when there is oxygen present in the electrolyte – in other words, it breathes.”
More in the full NTU News: http://media.ntu.edu.sg/NewsReleases/Pages/newsdetail.aspx?news=b3340130-b762-4685-908f-3b58c8074525
This research was recently published in Nature Communications:
Wang, J., Zhang, L., Yu, L., Jiao, Z., Xie, H., Lou, X. D., & Sun, X. W. (2014). A bi-functional device for self-powered electrochromic window and self-rechargeable transparent battery applications. Nature Communications, 54921.
NTU Libraries subscribes to Nature Communications journal.
More news sources reporting about this in December 2014:
- ChannelNewsAsia: http://www.channelnewsasia.com/news/singapore/ntu-develops-self-tinting/1532124.html
- Straits Times: http://www.straitstimes.com/news/singapore/more-singapore-stories/story/ntu-scientists-invent-self-tinting-window-which-does-not
- TODAY [online]: http://www.todayonline.com/daily-focus/science/ntu-invents-self-powered-auto-tinting-window