Crystallization of amorphous silicon beyond the crystallized polycrystalline silicon region induced by metal nickel

Crystallization of amorphous silicon(a-Si) which starts from the middle of the a-Si region separating two adjacent metal-induced crystallization(MIC) polycrystalline silicon(poly-Si) regions is observed. The crystallization is found to be related to the distance between the neighboring nickel-introd...

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Bibliographic Details
Published in中国物理B:英文版 no. 1; pp. 357 - 360
Main Author 张冬利 王明湘 王文 郭海成
Format Journal Article
LanguageEnglish
Published 2017
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ISSN1674-1056
2058-3834

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Summary:Crystallization of amorphous silicon(a-Si) which starts from the middle of the a-Si region separating two adjacent metal-induced crystallization(MIC) polycrystalline silicon(poly-Si) regions is observed. The crystallization is found to be related to the distance between the neighboring nickel-introducing MIC windows. Trace nickel that diffuses from the MIC window into the a-Si matrix during the MIC heat-treatment is experimentally discovered, which is responsible for the crystallization of the a-Si beyond the MIC front. A minimum diffusion coefficient of 1.84×10-9cm2/s at 550℃ is estimated for the trace nickel diffusion in a-Si.
Bibliography:Dongli Zhang;Mingxiang Wang;Man Wong;Hoi-Sing Kwok;Department of Microelectronics,Soochow University;Center for Display Research,Department of Electronic and Computer Engineering,the Hong Kong University of Science and Technology
11-5639/O4
ISSN:1674-1056
2058-3834