нанокремний has many potential applications. It can be used for smart devices. For example, it can be a component in photovoltaics. Other applications include biomedical sensing and theranostics. Silicon is also useful for abiotic stress mitigation. In addition, it can help promote plant growth and photosynthetic efficiency. There are several nanosilicon-based materials that can be used to produce photodetectors, hydrogen generation from water, and photovoltaics.
The main application of nanosilicon is in semiconductors. Nanosilicon can be integrated with other nanomaterials to improve their performance. For example, silicon can be added to the surface of polymer composites to enhance their ability to conduct electricity. Another nanosilicon application is in photodynamic therapy. Photodynamic therapy can use the blue-shifting of photoluminescence on nanosilicon to enhance the recombination of electron-hole pairs. This effect is a result of the trapped electron by the Si-O bond.
Silicon is an ideal pozzolanic material. This is a type of nanoparticle that exhibits a high specific surface area and has an excellent abiotic activity. Unlike conventional particles, it can be regenerated in the environment. Moreover, it is able to perform better with lower levels of impurities.
However, nanosilicon does not possess all of the properties that traditional polysilicon has. It has a very low band gap, which is around 3 nm. Nevertheless, it can be manipulated with quantum effects. These effects can be utilized in the nanosilicon to control the energy level. To do so, the breaking symmetry and quantum confinement of the system are used. Specifically, the quantum confinement affects the emission wavelength while the breaking symmetry affects the energy levels.
The size of the nanosilicon and the CS and QC effect play a significant role in the formation of localized states. However, the size effect is often submerged by the CS effect. A detailed calculation was performed to examine the effects of size, CS and QC on the levels of localized states.
The study shows that the size of the nanosilicon plays a crucial role in the CS effect. When the structure of the nanosilicon has too small bonds and Si-H bonds, the QD structure may enter the band gap. On the other hand, the shape of the nanosilicon is more essential to the localized state. Therefore, the size of the bonding cover, the curvature radius of the surface and the face bonding cover are all important parameters.
Among the CS and QC effects, the CS effect is the most significant. According to the study, the CS effect affects the energy levels of the impuritied QDs that contain Si atoms. The CS effect is also associated with the inverse physical mechanism. As a result, the resulting localized states of the QD with 147 Si atoms become almost nonexistent. By contrast, the QC effect fails for nanosilicon with a smaller size.
Lastly, the CS and QC effect can be coupled. In the case of the CS effect, the underlying symmetric structure of the nanosilicon is broken by the impurities. When the symmetry of the nanosilicon is broken, the emission wavelength becomes longer and the recombination rate increases.