4.6 Article

Biphase micro/nanometer sized single crystals of organic semiconductors: Control synthesis and their strong phase dependent optoelectronic properties

Journal

APPLIED PHYSICS LETTERS
Volume 96, Issue 14, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.3383222

Keywords

nanostructured materials; optical switches; optoelectronic devices; organic semiconductors; semiconductor switches

Funding

  1. National Natural Science Foundation of China [60736004, 50873105]
  2. Ministry of Science and Technology of China [2006CB806200, 2006CB932100]
  3. Chinese Academy of Sciences

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The control synthesis of alpha and beta phase micro/nanometer sized single crystals of semiconductor 9,10-bis(phenylethynyl)anthracene were achieved; the device performance of individual alpha and beta phase single crystals showed strong phase dependence; devices of beta phase single crystals exhibited very high photoswitch performance (on/off current ratio similar to 6x10(3), one of the highest values reported for organic materials), and those of alpha phase displayed high field-effect performance.

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