The Notability of Silicon Nanowires in Optoelectronic, Environment and Health

IF 2.8 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Silicon Pub Date : 2024-08-19 DOI:10.1007/s12633-024-03110-9

Mehdi Rahmani, Mohamed-Ali Zaïbi

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Abstract

Silicon nanowires are part of nanostructures, characterized by a high surface to volume ratio or large aspect ratio (AR), between 10 and 10⁴. The new physicochemical properties of SiNWs compared to those of planar silicon are inevitable parameters for involving these nanostructures in the fields of nanotechnology, environment, medicine, pharmacy and others. Nevertheless, the passivation of nanowires by metal nanoparticles or a suitable semiconductor enhances their photocatalytic activities. Likewise, the addition of appropriate organic compounds improves the sensor of these nanostructures. In this paper, we first summarize an overview bottom-up and top-down production of silicon nanowires, and then the advantages and drawbacks of each method are described. Some potential implications of SiNWs in optoelectronics, photocatalysts and biosensors have been detailed. In each application, the main elements of enhancement of the composite-based on silicon nanowires covered with metal nanoparticles or functionalized with an organic compound are discussed.

Graphical Abstract

Research Highlights

1- MACE technique for SiNWs elaboration

2- Catalytic and photocatalytic efficiency of silicon nanowires

3- The effect of metal nanoparticles covered nanowires of silicon on catalytic and photocatalytic efficiency

4- The effect of sunlight on photocatalytic efficiency

5- The functionalization of nanowires by specific organic compounds to the cure of certain human diseases

6- The physicochemical properties of SiNWs and the origin of their involvement to produce probes immobilizing DNA on the surface

7- The implication of SiNWs in Schottky diodes (SD) and organic Schottky diodes (OSD)

8- The effect of organic molecules in the SiNWs layer

Abstract Image

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硅纳米线在光电、环境和健康领域的重要性

硅纳米线是纳米结构的一部分，其特点是高表面体积比或大高宽比（AR），介于 10 和 104 之间。与平面硅相比，硅纳米线具有新的物理化学特性，这是将这些纳米结构应用于纳米技术、环境、医学、制药等领域的必然参数。不过，用金属纳米颗粒或合适的半导体对纳米线进行钝化，可以增强其光催化活性。同样，添加适当的有机化合物也能提高这些纳米结构的传感器性能。本文首先概述了自下而上和自上而下生产硅纳米线的方法，然后介绍了每种方法的优缺点。我们还详细介绍了硅纳米线在光电子学、光催化剂和生物传感器方面的一些潜在影响。在每种应用中，都讨论了基于硅纳米线包覆金属纳米颗粒或有机化合物功能化的复合材料的主要增强要素。图解摘要研究亮点1- 用于硅纳米线制备的 MACE 技术2- 硅纳米线的催化和光催化效率3- 金属纳米颗粒覆盖硅纳米线对催化和光催化效率的影响4- 阳光对光催化效率的影响5- 纳米线的功能化研究用特定有机化合物对纳米线进行功能化以治疗某些人类疾病6- 硅纳米线的理化特性及其参与生产表面固定 DNA 的探针的起源7- 硅纳米线在肖特基二极管（SD）和有机肖特基二极管（OSD）中的作用8- 硅纳米线层中有机分子的影响

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Silicon CHEMISTRY, PHYSICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.90

自引率

20.60%

发文量

685

审稿时长

>12 weeks

期刊介绍： The journal Silicon is intended to serve all those involved in studying the role of silicon as an enabling element in materials science. There are no restrictions on disciplinary boundaries provided the focus is on silicon-based materials or adds significantly to the understanding of such materials. Accordingly, such contributions are welcome in the areas of inorganic and organic chemistry, physics, biology, engineering, nanoscience, environmental science, electronics and optoelectronics, and modeling and theory. Relevant silicon-based materials include, but are not limited to, semiconductors, polymers, composites, ceramics, glasses, coatings, resins, composites, small molecules, and thin films.