AI Article Synopsis
- The study explores the electronic and optical enhancements in a hybrid combination of one-dimensional tellurene and two-dimensional graphene and MoS, focusing on their structural configurations.
- It identifies three types of heterojunctions formed in this assembly (type I, type II, and Z-scheme), which alter the electronic properties, particularly with the opening of a band gap in graphene.
- The research suggests potential applications in broadband photodetection and green-energy harvesting, covering a wide spectrum range from 380 nm to 10,000 nm.
Article Abstract
We highlight the enhanced electronic and optical functionalization in the hybrid heterojunction of one-dimensional (1D) tellurene with a two-dimensional (2D) monolayer of graphene and MoS in both lateral and vertical geometries. The structural configurations of these assemblies are optimized with a comparative analysis of the energetics for different positional placements of the 1D system with respect to the hexagonal 2D substrate. The 1D/2D coupling of the electronic structure in this unique assembly enables the realization of the three different types of heterojunctions, viz. type I, type II, and Z-scheme. The interaction with 1D tellurene enables the opening of a band gap of the order of hundreds of meV in 2D graphene for both lateral and vertical geometries. With both static and time-dependent first-principles analysis, we indicate their potential applications in broadband photodetection and absorption, covering a wide range of visible to infrared (near-IR to mid-IR) spectrum from 380 to 10 000 nm. We indicate that this 1D/2D assembly also has bright prospects in green-energy harvesting.
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| http://dx.doi.org/10.1021/acsami.2c13198 | DOI Listing |
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