Preparation of Superhydrophobic Porous Silicon and Its Surface Stability†

doi:10.7503/cjcu20200079

Abstract

Abstract:

The porous silicon has been widely used in many fields due to its great optical properties, but the silicon hydride bonds(Si—H) on the surface of porous silicon were sensitive to the water and oxygen, which will affect the performance of porous silicon. Therefore, it was critically necessary to improve the porous silicon stability by the surface modification. In this article, the surface modification of porous silicon was processed by the hydrosilylation method under the heating conditions. The structure and composition of the functionality porous silicon were characterized and tested by Fourier transform infrared spectroscopy, energy dispersive spectrometer, scanning electron microscopy. The effect of different reaction time on grafting porous silicon was investigated. The results show that the superhydrophobic porous silicon was prepared after 3 h reaction, and it exhibited great stability in the alkaline and air environment.

Key words: Porous silicon, Superhydrophobic, Stabilization

CLC Number:

O613.7
TB383

TrendMD:

MIAO Xiaomei, MAO Keyu, PEI Yongbing, JIANG Jianxiong, YAN Yue, WU Lianbin. Preparation of Superhydrophobic Porous Silicon and Its Surface Stability^†[J]. Chem. J. Chinese Universities, 2020, 41(7): 1499.

Figures/Tables 6

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