| 초록 |
Transparent photothermal (PT) materials that absorb NIR light are emerging as materials that can be used in remotely controllable robots, photothermal energy films, and sensors. PT materials can be used in highly programmable wireless heaters and PT actuators depending on the intensity and wavelength of the light source. However, the transparent PT material has hardly been studied in the molecule because it is difficult to prevent the overlap of absorption peaks between visible and NIR regions. Due to the solubility problems of NIR dyes and fabrication problems, their application to transparent films has been limited. Here we present a NIR dye with a transparency of over 90% in the visible region. A NIR absorption film was fabricated using a transparent binder, confirming a high NIR photothermal conversion efficiency of over 75%. Utilizing the high photothermal effect of the film, we have been able to create a transparent light heater that can be applied to desalination and actuators. |
