Citation: Wenli Zhou, Bing Zhang, Wenli Song, Jilin Zhang, Zhongxian Qiu, Yue Han, Chengzhi Li, Liping Yu. Hydrophobic Modification of Inorganic Perovskite Quantum Dots and LED Applications: Recommending a Comprehensive Chemistry Experiment for Undergraduates[J]. University Chemistry, ;2023, 38(8): 192-199. doi: 10.3866/PKU.DXHX202208043 shu

Hydrophobic Modification of Inorganic Perovskite Quantum Dots and LED Applications: Recommending a Comprehensive Chemistry Experiment for Undergraduates

College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China

Corresponding author: Liping Yu, lpyu@hunnu.edu.cn
Received Date: 9 August 2022

A comprehensive chemical synthesis experiment, that is, hydrophobic modification of inorganic perovskite quantum dots and LED applications, is introduced in this article. The SiO₂ aerogel was prepared with tetraethyl orthosilicate as the raw material, and the hydrophobicity and toughness of SiO₂ aerogel were enhanced by trimethylchlorosilane and mullite fibers, respectively. Finally, CsPbX₃@SiO₂ aerogel composites were obtained by adsorption of inorganic perovskite quantum dots on hydrophobic SiO₂ aerogel. The successful modification of the SiO₂ aerogel was characterized by contact angle, infrared spectroscopy and X-ray diffraction, and the LED devices were fabricated. This experiment involves synthesis, characterization, and application of materials. It can be used as a comprehensive chemistry experiment for undergraduates majoring in chemistry and applied chemistry, which helps to improve students' scientific literacy and stimulate their interest in scientific research.
- Perovskite quantum dots,
- Hydrophobic SiO₂ aerogel,
- Comprehensive chemical synthesis experiment,
- Instructional design
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