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Journal of Central South University

, Volume 26, Issue 10, pp 2661–2667 | Cite as

Effects of ratio of hydrogen flow on microstructure of hydrogenated microcrystalline silicon films deposited by magnetron sputtering at 100 °C

  • Lin-qing Wang (王林青)
  • Yong-tao Zhou (周永涛)
  • Jun-jun Wang (王军军)Email author
  • Xue-qin Liu (刘雪芹)
Article
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Abstract

Hydrogenated microcrystalline silicon (µc-Si:H) films were prepared on glass and silicon substrates by radio frequency magnetron sputtering at 100 °C using a mixture of argon (Ar) and hydrogen (H2) gasses as precursor gas. The effects of the ratio of hydrogen flow (H2/(Ar+H2)%)) on the microstructure were evaluated. Results show that the microstructure, bonding structure, and surface morphology of the µc-Si:H films can be tailored based on the ratio of hydrogen flow. An amorphous to crystalline phase transition occurred when the ratio of hydrogen flow increased up to 50%. The crystallinity increased and tended to stabilize with the increase in ratio of hydrogen flow from 40% to 70%. The surface roughness of thin films increased, and total hydrogen content decreased as the ratio of hydrogen flow increased. All µc-Si:H films have a preferred (111) orientation, independent of the ratio of hydrogen flow. And the µc-Si:H films had a dense structure, which shows their excellent resistance to post-oxidation.

Key words

hydrogenated microcrystalline silicon films radio frequency magnetron sputtering ratio of hydrogen flow low temperature microstructure 

氢稀释比对磁控溅射低温(100 °C)沉积氢化微晶硅薄膜微结构特性的影响

摘要

在低温(100 °C)条件下采用磁控溅射在玻璃和硅(100)衬底上沉积氢化微晶硅(μc-Si:H)薄膜,研 究不同氢稀释比对微晶硅薄膜微结构特性的影响。结果表明:薄膜从非晶相过渡到了微晶相当氢稀释 比增加到约50%,氢化微晶硅薄膜的结晶率随氢稀释比从40%增加到70%先增加后趋于稳定;薄膜的 表面粗糙度随着氢稀释比的增加而增加,氢含量的变化趋势与之相反;所制备的氢化微晶硅薄膜都具 有 (111)择优取向,与氢稀释比无关,且薄膜结构致密。

关键词

微晶硅薄膜 射频磁控溅射 氢稀释比例 低温 微结构 
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Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of ScienceChongqing University of TechnologyChongqingChina
  2. 2.Chongqing Key Laboratory of Green Energy Materials Technology and SystemsChongqingChina
  3. 3.College of Materials Science and EngineeringChongqing University of TechnologyChongqingChina
  4. 4.Chongqing Collaborative Innovation Center for Brake Tribological MaterialsChongqingChina

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