Challenges and opportunities in 2D heterostructures for electronic and optoelectronic devices
Review article, 2022

Two-dimensional (2D) materials such as graphene, transition metal dichalcogenides (TMDs), and their heterojunctions are prospective materials for future electronics, optoelectronics, and quantum technologies. Assembling different 2D layers offers unique ways to control optical, electrical, thermal, magnetic, and topological phenomena. Controlled fabrications of electronic grade 2D heterojunctions are of paramount importance. Here, we enlist novel and scalable strategies to fabricate 2D vertical and lateral heterojunctions, consisting of semiconductors, metals, and/or semimetals. Critical issues that need to be addressed are the device-to-device variations, reliability, stability, and performances of 2D heterostructures in electronic and optoelectronic applications. Also, stacking order-dependent formation of moiré excitons in 2D heterostructures are emerging with exotic physics and new opportunities. Furthermore, the realization of 2D heterojunction-based novel devices, including excitonic and valleytronic transistors, demands more extensive research efforts for real-world applications. We also outline emergent phenomena in 2D heterojunctions central to nanoelectronics, optoelectronics, spintronics, and energy applications.

Materials science

Nanomaterials

Materials synthesis

Author

Suman Kumar Chakraborty

Indian Institute of Technology

Baisali Kundu

Indian Institute of Technology

Biswajeet Nayak

Indian Institute of Technology

Saroj Prasad Dash

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Prasana Kumar Sahoo

Indian Institute of Technology

iScience

25890042 (eISSN)

Vol. 25 3 103942

Subject Categories

Materials Engineering

Nano Technology

DOI

10.1016/j.isci.2022.103942

PubMed

35265814

More information

Latest update

5/29/2024