CdS Nanorods Imbedded in Liquid Crystal Cells for Smart Optoelectronic Devices
Resource
Nano Lett.,7(7),1908-1913.
Journal
Nano Letters
Journal Volume
7
Journal Issue
7
Pages
1908-1913
Date Issued
2007-07
Date
2007-07
Author(s)
Wu, Kuan Ju
Chu, Kung Ching
Lai, Chih-Wei
Kang, Chia-Cheng
Abstract
A novel nanocomposite device, which consists of liquid crystals and semiconductor nanorods, has been designed and fabricated. It reveals a very unique and useful behavior in that the polarization of the emission from semiconductor nanorods can be controlled by an external bias. The large magnitude of polarization anisotropy of 0.63 can be quantitatively interpreted very well in terms of the dielectric contrast between semiconductor and liquid crystal. Our approach is quite general, which is applicable to other nanomaterials, and it utilizes the currently mature liquid crystal display technology. The results open up new possible applications for one-dimensional semiconductor nanostructures in smart optoelectronic applications, including optical switches, integrated photonic devices, as well as electrochromatic gadgets in the near future.
SDGs
Type
journal article