دورية أكاديمية
Electrically Switchable and Permanently Stable Light Scattering Modes by Dynamic Fingerprint Chiral Textures.
| العنوان: | Electrically Switchable and Permanently Stable Light Scattering Modes by Dynamic Fingerprint Chiral Textures. |
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| المؤلفون: | Cheng, Ko-Ting, Lee, Po-Yi, Qasim, Malik M, Liu, Cheng-Kai, Cheng, Wen-Fa, Wilkinson, Timothy D |
| بيانات النشر: | American Chemical Society //dx.doi.org/10.1021/acsami.5b12854 ACS Applied Materials and Interfaces |
| سنة النشر: | 2016 |
| المجموعة: | Apollo - University of Cambridge Repository |
| مصطلحات موضوعية: | bistability, cholesterics, dynamic scattering, fingerprint texture, light modulator, liquid crystal |
| الوصف: | Negative dielectric nematic liquid crystals (LCs) doped with two azobenzene materials provide electrically switchable and permanently stable scattering mode light modulators based on dynamic fingerprint chiral textures (DFCT) with inhomogeneously helical axes. These light modulators can be switched between transparent (stable large domains of DFCT) states and scattering (stable small domains of DFCT) states by applying electric fields with different frequencies. The generation of DFCT results from the long flexible side chains of the doped chiral dopant. That is, if the DFCT can be obtained, then the large domains of DFCT reflect an intrinsically stable state. Moreover, the stabilization of the small domains of DFCT are caused by the terminal rigid restricted side chains of the other doped chiral dopant. Experimentally, the required amplitude to switch the light modulator from a scattering (transparent) state to a transparent (scattering) state decreases as the frequency of the applied electric field increases (decreases) within the set limits. This study is the first report on the advantages of the light scattering mode of DFCT, including low operating voltage, permanently stable transmission, wide viewing angle, high contrast, and polarization-independent scattering and transparency. ; The authors would like to thank the Ministry of Science and Technology (MOST) of Taiwan for financially supporting this research under Grant No. MOST 103-2112-M-008-018-MY3. We are also grateful to Prof. Jy-Shan Hsu (Chung Yuan Christian University, Taiwan) for allowing full equipment usage. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://www.repository.cam.ac.uk/handle/1810/254966Test |
| الإتاحة: | https://www.repository.cam.ac.uk/handle/1810/254966Test |
| رقم الانضمام: | edsbas.E70F4BD7 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |