Electric-field-assisted position and orientation control of organic single crystals

Kenji Kotsuki, Seiji Obata, Koichiro Saiki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We have investigated the motion of growing pentacene single crystals in solution under various electric fields. The pentacene single crystals in 1,2,4-trichlorobenzene responded to the electric field as if they were positively charged. By optimizing the strength and frequency of an alternating electric field, the pentacene crystals automatically bridged the electrodes on SiO2. The pentacene crystal with a large aspect ratio tended to direct the [110] orientation parallel to the conduction direction, which will be suitable from a viewpoint of anisotropy in mobility. The present result shows a possibility of controlling the position and orientation of organic single crystals by the use of an electric field, which leads to high throughput and low cost industrial manufacturing of the single crystal array from solution.

Original languageEnglish
Pages (from-to)14286-14291
Number of pages6
JournalLangmuir
Volume30
Issue number47
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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