2023 Vol. 6, No. 10

Cover story: Wang YD, Wang YW, Dong YL, Zhou L, Kang JL et al. 2D Nb2CTx MXene/MoS2 heterostructure construction for nonlinear optical absorption modulation. Opto-Electron Adv 6, 220162 (2023).

Two-dimensional (2D) materials possess distinctive and adjustable optical, chemical, and electronic characteristics. Due to their remarkable and diverse light-matter interactions, they have garnered significant attention in the fields of optoelectronics and photonics. However, the current knowledge of their photophysical properties and techniques to enhance their optical performance remains limited. To address this issue, the researchers feature an exciting research that demonstrates how to modulate both linear and nonlinear optical properties of two-dimensional (2D) materials. They achieved this by synthesizing a 2D Nb2C/MoS2 heterostructure, where MoS2 nanocrystals were in-situ grown on Nb2C nanosheets. This heterostructure exhibited superior optical absorption and modulation capabilities compared to pristine Nb2C, over a broad wavelength range. The charge transfer occurring at the interface may contribute to the observed linear and nonlinear absorption modulation. This research introduces an effective method for regulating the nonlinear optical response of MXenes and other 2D materials by constructing heterostructures.


2024 Vol. 7, No. 1

ISSN(print) 2096-4579
ISSN(online) 2097-3993
CN 51-1781/TN
Prof. Xiangang Luo
Executive Editor-in-Chief: