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Controlling Growth Orientation of Phthalocyanine Films by Electrical FieldsOrganic Phthalocyanine films have many applications ranging from data storage to various non-linear optical devices whose quality is affected by the growth orientation of Phthalocyanine films. Due to the structural and electrical properties of Phthalocyanine molecules, the film growth orientation depends strongly on the substrate surface states. In this presentation, an electrical field up to 4000 V/cm is introduced during film growth. The Phthalocyanine films are synthesized on quartz substrates using thermal evaporation. An intermediate layer is deposited on some substrates for introducing the electrical field. Scanning electron microscopy, x-ray diffraction, and Fourier transform infrared spectroscopy are used for measuring surface morphology, film structure, and optical properties, respectively. The comparison of Phthalocyanine films grown with and without the electrical field reveals different morphology, film density, and growth orientation, which eventually change optical properties of these films. These results suggest that the growth method in the electrical field can be used to synthesized Phthalocyanine films with a preferred crystal orientation as well as propose an interaction mechanism between the substrate surface and the depositing molecules. The details of growth conditions and of the growth model of how the Phthalocyanine molecules grow in the electrical field will be discussed.
Document ID
20010039538
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Zhu, S.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Banks, C. E.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Frazier, D. O.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Ila, D.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Muntele, I.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Penn, B. G.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Sharma, A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Rose, M. Franklin
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Composite Materials
Meeting Information
Meeting: 13th International Conference on Crystal Growth
Location: Kyoto
Country: Japan
Start Date: July 30, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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