Abstract
Here we report the fabrication of dye-doped polymer-stabilized liquid crystals (PSLC)-based smart windows. The effect of dye doping on PSLC contrast was investigated. Non-dichroic dye tints the PSLC sample in both off- and on-state, which is not beneficial for increasing its off/on contrast. The sample doped with dichroic dye shows a slight color in the off-state and strong color in the on-state, resulting in an enhanced contrast, which attributed to orientation dependent absorption of dichroic dyes. Furthermore, we blended non-dichroic dye and dichroic dye who have complementary absorption together into PSLC mixture. The sample is almost colorless in the off-state due to the subtractive process, while colored in the on-state. The contrast is further enhanced. The results show that the proposed multi-dye-doped PSLC device has high visual contrast and fast response time, making it attractive for applications in light management and architectural aesthetics.
Highlights
Switchable smart windows, defined as variable light transmittance upon extra potential, are studied worldwide to meet the need for energy saving and other demands in architectures, vehicles, and aircraft [1,2,3,4,5,6,7]
We found that non-dichroic dye tints the polymer-stabilized liquid crystals (PSLC) sample in both off- and on-state, which is not beneficial beneficial for increasing its off/onHowever, contrast. the sample with dichroic shows a for increasing its off/on contrast
We fabricated a high-performance multi-dye-doped PSLC smart windows and investigated the effect of dye doping on its optoelectronic properties
Summary
Switchable smart windows, defined as variable light transmittance upon extra potential, are studied worldwide to meet the need for energy saving and other demands in architectures, vehicles, and aircraft [1,2,3,4,5,6,7]. Due to the dense polymer network, the anchoring force inhibits the reorientation of the liquid crystals (LC) molecules, which results in a high driving voltage for operating PDLC films. An alternative to PDLC is polymer-stabilized liquid crystals (PSLC). Due to the smaller polymer concentration, PSLC-based smart windows exhibit ultra-high transparent state and lower driving voltage compared with PDLC film. The hazesurface of this [21] The haze of this window in the voltage on-state can be enhanced, while its contrast is still lower window in the voltage on-state can be enhanced, while its contrast is still lower than its counterpart than its counterpart. We found that non-dichroic dye tints the PSLC sample in both offand on-state, which is not. We found that non-dichroic dye tints the PSLC sample in both off- and on-state, which is not beneficial beneficial for increasing its off/onHowever, contrast.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
