Thermodynamics of paracrystalline silicon

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Fluctuation microscopy experiments have shown that the as-deposited structure of amorphous silicon thin films is paracrystalline. A paracrystal consists of small (< 3 nm in diameter) topologically crystalline grains separated by a disordered matrix. Here the authors consider the thermodynamics of paracrystalline silicon as a function of the grain size and the temperature. They offer a simple model that qualitatively explains the observed metastability of the ordered structure at low temperature (300 K), the relaxation towards a more disordered structure at intermediate temperatures (600 K), and the recrystallization at high temperatures (1,000 K).

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9 p.

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Voyles, P. M.; Treacy, M. M. J. & Gibson, J. M. May 9, 2000.

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Description

Fluctuation microscopy experiments have shown that the as-deposited structure of amorphous silicon thin films is paracrystalline. A paracrystal consists of small (< 3 nm in diameter) topologically crystalline grains separated by a disordered matrix. Here the authors consider the thermodynamics of paracrystalline silicon as a function of the grain size and the temperature. They offer a simple model that qualitatively explains the observed metastability of the ordered structure at low temperature (300 K), the relaxation towards a more disordered structure at intermediate temperatures (600 K), and the recrystallization at high temperatures (1,000 K).

Physical Description

9 p.

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OSTI as DE00755873

Medium: P; Size: 9 pages

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  • 2000 MRS Spring Meeting, San Francisco, CA (US), 04/24/2000--04/28/2000

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  • Report No.: ANL/MSD/CP-101848
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 755873
  • Archival Resource Key: ark:/67531/metadc707304

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  • May 9, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 8:10 p.m.

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Voyles, P. M.; Treacy, M. M. J. & Gibson, J. M. Thermodynamics of paracrystalline silicon, article, May 9, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc707304/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.