25th anniversary article: semiconductor nanowires--synthesis, characterization, and applications

Area of Science:

• Materials Science
• Nanotechnology
• Solid State Physics

Background:

• Semiconductor nanowires (NWs) exhibit exceptional electronic, photonic, thermal, electrochemical, and mechanical properties.
• Over two decades of research have established NWs as promising nanomaterials.

Purpose of the Study:

• To provide a comprehensive review of major advances in semiconductor nanowire synthesis, characterization, and applications over the past decade.
• To elucidate the fundamental principles of "bottom-up" growth mechanisms and control over NW properties.
• To highlight the unique benefits of the one-dimensional NW geometry for various applications.

Main Methods:

• Review of recent literature on semiconductor nanowire research.
• Analysis of "bottom-up" growth mechanisms and their impact on NW morphology, stoichiometry, and crystal structure.
• Compilation and discussion of NW applications across diverse fields.

Main Results:

• Significant progress in rational control over NW synthesis, leading to tailored material properties.
• Demonstrated utility of NWs in electronic, sensor, photonic, thermoelectric, photovoltaic, photoelectrochemical, battery, mechanical, and biological applications.
• Detailed explanation of how the 1D geometry enhances NW performance in various applications.

Conclusions:

• Semiconductor nanowires possess unique properties making them suitable for a wide range of advanced technologies.
• Continued research into synthesis, characterization, and application is crucial for overcoming commercialization barriers.
• Future directions include further exploration of NWs for next-generation electronic, energy, and biomedical devices.