Advanced electro-optical smart window based on PSLC using a photoconductive TiOPc electrode

ABSTRACT

This study demonstrates an electro-optical controllable smart window based on a liquid crystal device. The device integrates a photoconductive electrode based on TiOPc films into a liquid crystal shutter based on polymer-stabilised homeotropic aligned nematic liquid crystals (PSLC) connecting in series. The PSLC light shutter is transparent in electric field-off state; it scatters light as it switches to multi-domain structures in electric field-on states. The TiOPc film has an optically controllable impedance that manipulates the electric field on the PSLC film. The window transits into multi-transmission states according to the intensities of exposure light with an extra applied bias voltage.

GRAPHICAL ABSTRACT

KEYWORDS:

• Liquid crystal
• switchable window
• polymer liquid crystal composites
• photoconductive film

Acknowledgements

The authors would like to thank the National Science Council of Taiwan for financially supporting this research [Grant Number MOST 101-2112-M-006-011-MY3]. Additionally, this work is partially supported by Advanced Optoelectronic Technology Center as well.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors would like to thank the National Science Council of Taiwan for financially supporting this research [Grant Number MOST 101-2112-M-006-011-MY3].