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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 12 — Dec. 1, 2013
  • pp: 2045–2054

Fast and versatile deposition of aligned semiconductor nanorods by dip-coating on a substrate with interdigitated electrodes

Mohammad Mohammadimasoudi, Lieven Penninck, Tangi Aubert, Raquel Gomes, Zeger Hens, Filip Strubbe, and Kristiaan Neyts  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 12, pp. 2045-2054 (2013)

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Semiconductor nanorods mainly absorb and emit light with the electric field along the axis of the rods, it is therefore important to align the nanorods along a preferred direction. The homogeneous deposition of aligned nanorods on large substrates is interesting for large size applications such as solar cells and OLEDs. In this work, we present a fast and versatile method for the homogeneous deposition and alignment of nanorods from a colloidal suspension. The method is based on a low-cost dip-coating procedure during which an alternating electric field is applied. The accumulation, orientation, and polarized fluorescence of the nanorods is verified by AFM and polarized fluorescence microscopy. An alignment with order parameter of 0.67 has been obtained with this method.

© 2013 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(220.1140) Optical design and fabrication : Alignment
(160.4236) Materials : Nanomaterials
(310.5448) Thin films : Polarization, other optical properties

ToC Category:

Original Manuscript: September 30, 2013
Revised Manuscript: October 30, 2013
Manuscript Accepted: October 30, 2013
Published: November 6, 2013

Mohammad Mohammadimasoudi, Lieven Penninck, Tangi Aubert, Raquel Gomes, Zeger Hens, Filip Strubbe, and Kristiaan Neyts, "Fast and versatile deposition of aligned semiconductor nanorods by dip-coating on a substrate with interdigitated electrodes," Opt. Mater. Express 3, 2045-2054 (2013)

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