Title
Tilted Orientation of Photochromic Dyes with Guest-Host Effect of Liquid Crystalline Polymer Matrix for Electrical UV Sensing.
Abstract
We propose a highly oriented photochromic dye film for an ultraviolet (UV)-sensing layer, where spirooxazine (SO) derivatives are aligned with the liquid crystalline UV-curable reactive mesogens (RM) using a guest-host effect. For effective electrical UV sensing with a simple metal-insulator-metal structure, our results show that the UV-induced switchable dipole moment amount of the SO derivatives is high; however, their tilting orientation should be controlled. Compared to the dielectric layer with the nearly planar SO dye orientation, the photochromic dielectric layer with the moderately tilted dye orientation shows more than seven times higher the UV-induced capacitance variation.
Year
DOI
Venue
2016
10.3390/s16010038
SENSORS
Keywords
Field
DocType
UV-sensing,spirooxazine (SO),photochromic dye,liquid crystal,metal-insulator-metal (MIM) structure,guest-host effect
Polymer,Capacitance,Crystal,Photochromism,Planar,Engineering,Liquid crystal,Optoelectronics,Dipole,Ultraviolet
Journal
Volume
Issue
ISSN
16
1.0
1424-8220
Citations 
PageRank 
References 
0
0.34
2
Authors
7
Name
Order
Citations
PageRank
Amid Ranjkesh100.34
Minkyu Park29725.21
Do Hyuk Park300.34
Ji-Sub Park400.34
Jun-Chan Choi500.34
Sung-Hoon Kim65413.31
Hak-Rin Kim701.35