標題: Anomalous capacitance bounces and bumps of liquid crystal cells in DC electric fields
作者: Chen, PL
Chen, SH
光電工程學系
Department of Photonics
關鍵字: capacitance;liquid crystal;ion;induced polarization;space-charge polarization
公開日期: 1-Apr-2000
摘要: We have studied the time response of the capacitance of nematic liquid crystal cells by applying electric fields. When AC fields are applied, the capacitance exhibited a normal behavior: it first increased monotonically with time, and then reached a saturating value, With sufficient high DC fields, capacitance bounces and bumps were observed during the rising time for 100-mu m thick cells with low and high impurity concentrations, respectively. We believe that these anomalous capacitance characteristics of liquid crystal cells are resulted from the coupling effects between induced polarization from liquid crystal molecules and space-charge polarization from fast ions.
URI: http://dx.doi.org/10.1143/JJAP.39.L297
http://hdl.handle.net/11536/30603
ISSN: 0021-4922
DOI: 10.1143/JJAP.39.L297
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
Volume: 39
Issue: 4A
起始頁: L297
結束頁: L299
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