Versatile role of 2D Ti3C2 MXenes for advancements in the photodetector performance: A review

Abstract

Nowadays, layer-structured two-dimensional (2D) Ti3C2 MXenes have been created a platform as promising candidates for developing next-generation photodetectors. Scalable spatial organization of Ti3C2 MXenes enables responsive template at the interface of various semiconductors for significant improvement in the photodetector performance. In this review, we provide prospective discussion on geometrical potentiality of 2D Ti3C2 MXenes to advance the current photodetector device performance. Specifically, we guide the versatility of Ti3C2 MXenes such as a metal electrode, flexible material, transparent nature, and self-power behavior during UV, visible, and broadband photodetector performance. By the excellence of 2D Ti3C2, we begin to comprehend the Schottky barrier, built-in electric field, and van der Walls heterojunction formation. It is imperative to understand the vast opportunities of Ti3C2 MXene-based photodetectors even under flexible conditions, which is higher than conventional gold and graphene. Owing to the desirable properties, Ti3C2 garnered significant progress in (i) large-size flexible photodetector formation without altering the structural and charge carrier properties, (ii) replacing conventional metal electrodes by electrically conductive Ti3C2 in Ti3C2-semiconductor-Ti3C2 (MX-S-MX) photodetector, and (iii) Schottky junction formation at the interface of various semiconductors. Finally, we conclude the status of 2D Ti3C2 MXene applicability, challenges, and possible viewpoints for advancement in next-generation photodetectors.(c) 2023 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.