Influence of methyl red as a dopant on the electrical properties and device performance of liquid crystals

Po Chang Wu, Chien Tsung Hou, Yu Cheng Hsiao, Wei Lee

研究成果: 雜誌貢獻文章

4 引文 斯高帕斯(Scopus)

摘要

The ionic effect in nematic liquid-crystal (LC) cells containing the azo dye methyl red was investigated by means of dielectric spectroscopy, measurements of voltage holding ratio (VHR) and ultraviolet/visible absorption spectroscopy. The experimental results indicated that incorporating a minute amount of the methyl red (< 0.03 wt%) in the LC host leads to the suppression of the ionic effect caused by impurity ions. Practically, the doped LC cells with a dye content of 0.02 wt% showed improved VHR and promoted lifetime by 15% and 180%, respectively, in virtually no expense of the optical transmittance.
原文英語
頁(從 - 到)31347-31355
頁數9
期刊Optics Express
22
發行號25
DOIs
出版狀態已發佈 - 一月 1 2014
對外發佈Yes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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