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Optical transmittance of ferronematic materials in the visible range

XIANG WANG1, SHENGLI PU1,* , HONGZHU JI1, GUOJUN YU1

Affiliation

  1. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

Abstract

A kind of ferronematic materials composed of 4 cyano 4' pentylbiphenyl nematic liquid crystal and oil based Fe 3 O 4 magnetic fluid was prepared by using ultrasonic agitation. The influence of wavelength of incident light, concentration and thickness of samples and externally magnetic field strength on the transmittance s of pure magnetic fluids and as prepared ferronematic materials were obtained. The transmittance s of pure magnetic fluid s and ferronematic materials increase gradually with the incident wavelength and slightly with the magnetic field, but decreases with the volume fraction of magnetic particle and sample thickness at certain wavelength For the ferronematic materials their transmittances also increase with the volume fraction of nematic liquid crystal. The maximum relative enhancement in transmittance is achieved to be around 190% at the wavelength of 500 nm in our experiments..

Keywords

Magnetic fluids Nematic liquid crystal Ferronematic materials Transmittance.

Submitted at: July 23, 2012
Accepted at: July 10, 2014

Citation

XIANG WANG, SHENGLI PU, HONGZHU JI, GUOJUN YU, Optical transmittance of ferronematic materials in the visible range, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 7-8, pp. 771-775 (2014)