Chemical reactivity of silicon nanowires

One dimensional silicon nanomaterials has grown to be increasingly popular for optoelectronic, chemical and bio-chemical devices because of their semi-conducting capability and comfort for chemical modification by various chemical varieties. In order to attain these purposes, several attempts are already input to the synthesis of silicon nanowires (SiNWs). Included in this, oxide assisted growth (OAG) of SiNWs is regarded as the efficient way for high production yield of bulk SiNWs and free of metal catalyst contamination in product. Within this analysis, the stability of SiNWs towards 3D water with different pH was carried out. Both Si-Ox FTIR stretching peak intensity and atomic ratio of O:Si of H-SiNWs from EDAX indicated that the utmost stability of SiNWs was in the pH range of 4 = pH < 6. The SEM images showed that H-SiNWs was effortlessly contracted together when pH values were too high or too low, and minimum contraction occurred at pH 6…

Contents: Chemical reactivity of silicon nanowires

1. Introduction
1.1 General
1.2 Organic chemistry of bulk silicon species
1.3 Current research in silicon nanowires
1.3.1 Preparation of silicon nanowires
1.3.2 Chemical properties of silicon nanowires
1.3.3 Application of silicon nanowires
2. Objectives
3. Characterization approaches
3.1 FTIR
3.3 XPS
4. Stability of SiNWs at different pH
4.1 Sample preparation
4.2 Instrumentation
4.3 pH system
4.4 Reaction product analysis
4.4.1 Change in chemical composition
4.4.2 Morphology changes
5. Reactivity towards organic species through photochemical approach
5.1 Photochemical reactivity towards 1-alkene terminated compounds
5.2 Photochemical reactivity towards 1-alkanol terminated compounds
5.3 Instrumentation
5.4 Characterization of products
5.4.1 Raw materials
5.4.2 Reaction with 1-alkene terminated compounds…

Source: City University of Hong Kong

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