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Advanced electro-optical smart window based on PSLC using a photoconductive TiOPc electrode |
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| Authors: | Andy Ying Guey Fuh Shang Yi Chih |
| Institution: | 1. Department of Physics, National Cheng Kung University, Tainan, Taiwan;2. Institute of Electro-optical Science and Engineering, National Cheng Kung University, Tainan, Taiwan;3. Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan;4. Institute of Electro-optical Science and Engineering, National Cheng Kung University, Tainan, Taiwan |
| 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. |
| Keywords: | Liquid crystal switchable window polymer liquid crystal composites photoconductive film |