棒状ZnO晶体在低温下的生长方式，在聚酰亚胺薄膜上没有任何晶种/缓冲层,CrystEngComm

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棒状ZnO晶体在低温下的生长方式，在聚酰亚胺薄膜上没有任何晶种/缓冲层
CrystEngComm ( IF 2.6 ) Pub Date : 2021-2-9 , DOI: 10.1039/d0ce01729a
Kazuyuki Shishino _{1,

2,

3,

4,

5} , Tetsuya Yamada _{3,

4,

5,

6} , Kazunori Fujisawa _{3,

4,

5,

6} , Munekazu Ikeda _{5,

7,

8,

9} , Hajime Hirata _{5,

7,

8,

9} , Masashi Motoi _{3,

4,

5,

6,

10} , Tatsuo Hatakeyama _{3,

4,

5,

6,

10} , Katsuya Teshima _{3,

4,

5,

6,

11}

Affiliation

ZnO在各种应用中被广泛用作半导体材料。通常，ZnO用作薄膜，由ZnO /中间层/基板组成。最近，我们通过溶液反应与薄膜的表面处理相结合，在聚酰亚胺薄膜上直接开发了棒状ZnO晶体层，而没有任何中间层。我们研究了固溶过程中聚酰亚胺表面ZnO晶体层的生长机理。阐明了碱，等离子体和热处理的物理和化学作用。结果表明在聚酰亚胺表面上形成均匀，细小的不规则结构，并且主要是酰亚胺基团。ZnO晶体的直接生长归因于Zn（OH）₂逐渐成核而产生的锚定效应在聚酰亚胺膜中均匀，细小的不规则处。我们还演示了通过物理粗糙化聚酰亚胺膜来制备ZnO晶体层的更简便方法，以验证我们提出的机理。我们的发现为不使用任何中间层而在聚酰亚胺和其他聚合物基材表面上生长ZnO晶体提供了新的见识。该知识可进一步用于以低成本大量生产ZnO晶体/聚酰亚胺薄膜。

"点击查看英文标题和摘要"

Growth manner of rod-shaped ZnO crystals at low temperature without any seed/buffer layer on a polyimide film

ZnO is widely used as a semiconductor material in a variety of applications. Usually, ZnO is used as a thin film, which is composed of ZnO/intermediate layers/substrates. Recently we developed a rod-shaped ZnO crystal layer directly on a polyimide film without any intermediate layers by solution reaction coupled with surface treatments of the film. We studied the growth mechanism of ZnO crystal layers on the polyimide surface in the solution process. The physical and chemical effects of alkali, plasma, and heating treatments were clarified. The results indicated formation of homogeneous, fine irregularities on the polyimide surface and predominance of imide groups. The direct growth of ZnO crystals is attributed to the anchoring effect derived from gradual nuclei growth of Zn(OH)₂ in the homogeneous, fine irregularities of the polyimide film. We also demonstrated a more facile approach for the preparation of ZnO crystal layers by physical roughening of the polyimide film to verify our proposed mechanism. Our findings provide new insights into the growth of ZnO crystals on polyimide and other polymer substrate surfaces without the use of any intermediate layer. This knowledge may be further used for mass production of ZnO crystals/polyimide thin films at low cost.

更新日期：2021-02-24

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