Modifications of Graphene using Highly Energetic Heavy Ions

Project: Research

Project Details

Description

Swift heavy ions (SHI) have become an important tool for modifying various nanomaterials for a wide range of applications in the last two decades. This is mainly due to the high-energy deposition in a small volume along the ion track. Based on the material type and ion beam parameters, SHI can induce different modifications not only in the structure but also in the mechanical, electronic and magnetic properties of the irradiated materials. Among the investigated materials, graphene has attracted extensive worldwide interest for its extraordinary thermal, mechanical, electrical and other properties. It has recently attracted great attention for variety of novel applications, such as nanoelectronics, gas detectors, solar cells, and DNA sequencing. Engineering graphene by ion irradiation is considered very promising, as it can easily tailor the localized structure and properties of graphene in a controllable way achieving new functionalities. Defects strongly affect the electronic properties of graphene due to their impact on the electronic structure. Despite the fact that defect free graphene of very high electron mobility is an excellent good conductor, opening a sizeable and well-tuned band-gap in graphene is considered as significant challenge for graphene-based electronics. This can be achieved by introducing defects in graphene using ion irradiation. Furthermore, the presence of highly energetic ions cannot be ignored in space environment. Therefore, study of SHI induced modifications in graphene is essential for all possible space applications. Furthermore, the ion-modified graphene systems might be a promising candidate for electromagnetic interference (EMI) shielding, which is crucial in aerospace, portable electronics and military applications (Defense).
StatusFinished
Effective start/end date5/03/225/03/22

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