T-carbon: experiments, properties, derivatives and potential applications

TL;DR

This review comprehensively covers the experimental advances, properties, derivatives, and potential applications of T-carbon, a novel carbon allotrope with promising features for energy, optoelectronics, and other fields.

Contribution

It provides an extensive synthesis of recent experimental findings, property analyses, and potential applications of T-carbon and its derivatives, highlighting new modifications and theoretical insights.

Findings

T-carbon exhibits unique physical, chemical, and optical properties.

Doped T-carbon shows enhanced functionalities for energy and electronic applications.

Hydrogenated T-carbon may explain interstellar UV extinction features.

Abstract

Carbon is an extremely versatile element and carbon allotropes are very useful in all aspects of life and scientific research. T-carbon is a novel carbon allotrope with many appealing properties. Since the proposal of T-carbon, there has been a lot of intensive studies devoted to its physical, chemical, optical, magnetic, thermoelectrical and topological properties and possible applications in diverse areas in recent years. In this review, we provide a comprehensive review on the advances of the experiments, intriguing properties and various potential applications of T-carbon in energy storage, optoelectronics, thermoelectrics, topological states, etc. As intercalation and doping are effective methods to modify the electronic structure of materials or even to convert into sparkly different new structures or phases, we also discuss different atom doped T-carbon, which exhibit more intriguing properties and lead to promising potential applications in solar cells, photocatalysis, magnetism, superconductivity and so on. In addition, it is interesting to mention that the hydrogenated T-carbon molecules werefound to be possibly related to the physical origin of the UV extinction feature in interstellar medium that has been the half-century long unsolved puzzle. Many novel derivative structures either derived or inspired from T-carbon are included as well. Finally, we give prospects and outlook for future directions of study on T-carbon and related structures.