广东工业大学学报 ›› 2024, Vol. 41 ›› Issue (03): 43-47.doi: 10.12052/gdutxb.230153

• 材料科学与技术 • 上一篇    下一篇

低层数反蛋白石光子晶体薄膜的制备及光学性质研究

袁宸, 肖也   

  1. 广东工业大学 材料与能源学院, 广东 广州 510006
  • 收稿日期:2023-09-28 出版日期:2024-05-25 发布日期:2024-06-14
  • 通信作者: 肖也(1988-),男,讲师,博士,主要研究方向为半导体功能材料,E-mail:yexiao@gdut.edu.cn
  • 作者简介:袁宸(1999-),男,硕士研究生,主要研究方向为半导体薄膜材料,E-mail:752308289@qq.com
  • 基金资助:
    国家自然科学基金青年基金资助项目(51602065)；广州市科技计划项目(2023A04J0975)

Preparation and Optical Properties Study of Low-layer Inverse Opal Photonic Crystal Thin Films

Yuan Chen, Xiao Ye   

  1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2023-09-28 Online:2024-05-25 Published:2024-06-14

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摘要： 本文构筑了一种低层数SnO2反蛋白石光子晶体结构薄膜。基于反蛋白石光子晶体结构材料特有的有序多孔结构及慢光子效应，可有效提升光吸收，使其在太阳能电池、光催化等领域发挥出巨大的作用。本文通过无皂乳液聚合法，控制单体和引发剂的使用量，制备了3种粒径大小的聚苯乙烯(Polystyrene，PS)微球；采用垂直沉积自组装法，同时在分散液中滴加少量十二烷基硫酸钠(Sodium Dodecyl Sulfate，SDS)，制备低层数PS微球蛋白石模板；最后通过牺牲模板法制备低层数SnO2反蛋白石光子晶体薄膜。该结构薄膜相比于平面结构，在具有较高的比表面积的同时，在可见光波长范围内，吸光度与漫反射率均有所提升。该反蛋白石光子晶体薄膜为设计钙钛矿太阳能电池的电子传输层提供了新策略。

关键词: 光子晶体, 反蛋白石, 自组装, 二氧化锡

Abstract: A low-layer SnO2 photonic crystal thin film with an inverse opal structure was constructed in this study. Based on the unique ordered porous structure and slow photon effect of inverse opal photonic crystal materials, it effectively enhances light absorption and plays a significant role in fields such as solar cells and photocatalysis. In this study, three sizes of polystyrene (Polystyrene, PS) microspheres were prepared using a soap-free emulsion polymerization method, with controlled amounts of monomers and initiators. A small amount of sodium dodecyl sulfate (Sodium Dodecyl Sulfate, SDS) was added dropwise to the dispersion solution during vertical deposition self-assembly to prepare low-layer PS opal templates. Finally, a low-layer SnO2 inverse opal photonic crystal film was obtained using a sacrificial template method. Compared with planar structures, this film exhibits enhanced light absorption and diffuse reflectance while maintaining a higher specific surface area within the visible wavelength range. The inverse opal photonic crystal film provides a new strategy for designing electron transport layers in perovskite solar cells.

Key words: photonic crystal, inverse opal, self-assembly, tin dioxide

中图分类号: 

  • 1 O472+.8
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