Curing temperature effects on liquid crystal gels

Fang Du; Shin-Tson Wu
August 2003
Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1310
Academic Journal
The curing temperature is found to greatly affect the operating voltage, contrast ratio, hysteresis, and response time of the reversed-mode liquid crystal (LC) gels. For the gels using E48 LC host, the optimal curing temperature is around 40–50 °C. An LC gel with contrast ratio exceeds 2000:1 (at ∼2° collection angle), operating voltage lower than 7 V[sub rms], and response time of about 20 ms is demonstrated. Potential applications of such LC gels for optical switches, displays, and switchable polarizers are emphasized. © 2003 American Institute of Physics.


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