CdS Nanorods Imbedded in Liquid Crystal Cells for Smart Optoelectronic Devices | Zendy

Kuan-Ju Wu | Zendy; KungChing Chu | Zendy; Chih-Yu Chao | Zendy; YangFang Chen | Zendy; ChihWei Lai | Zendy; ChiaCheng Kang | Zendy; ChunYen Chen | Zendy; PiTai Chou | Zendy

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CdS Nanorods Imbedded in Liquid Crystal Cells for Smart Optoelectronic Devices

Author(s) -

Kuan-Ju Wu,

KungChing Chu,

Chih-Yu Chao,

YangFang Chen,

ChihWei Lai,

ChiaCheng Kang,

ChunYen Chen,

PiTai Chou

Publication year - 2007

Publication title -

nano letters

Language(s) - English

Resource type - Journals

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/nl070541n

Subject(s) - nanorod , materials science , semiconductor , optoelectronics , liquid crystal , nanomaterials , photonics , nanotechnology , polarization (electrochemistry) , photonic crystal , dielectric , anisotropy , optics , chemistry , physics

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.

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