2D Silicon-Based Heterostructures

The synthesis of atomically thin silicene (2D silicon) has opened new avenues for ultra-thin electronics and optoelectronics. Recent studies have achieved carrier mobilities >10^4 cm^2/Vs in silicene-graphene heterostructures, surpassing traditional silicon MOSFETs. These structures exhibit bandgap tunability from 0 to 1 eV via external electric fields, enabling reconfigurable logic devices. The integration of silicene with transition metal dichalcogenides (TMDs) has demonstrated room-temperature excitonic luminescence with efficiencies >50%.

The epitaxial growth of silicene on Ag(111) substrates has achieved defect-free monolayers over areas >1 cm^2, a critical step toward scalable fabrication. Advanced characterization techniques like ARPES (Angle-Resolved Photoemission Spectroscopy) have revealed Dirac cone structures in silicene, confirming its graphene-like electronic properties. Recent work has demonstrated spin-orbit coupling strengths ~20 meV, making silicene a promising candidate for spintronics applications.

The development of van der Waals heterostructures combining silicene with hBN (hexagonal boron nitride) has enabled ultra-low leakage currents <10^-12 A/µm^2 at room temperature. These structures exhibit high thermal stability up to 600°C, making them suitable for harsh environments. Recent experiments have demonstrated tunneling transistors with subthreshold swings <60 mV/decade, approaching the theoretical limit for low-power electronics.

The integration of silicene into flexible electronics has achieved bending radii <1 mm without performance degradation, opening new possibilities for wearable devices. Recent advancements in transfer techniques have enabled the stacking of multiple silicene layers with precise control over interlayer spacing (<0.5 nm). This has led to the discovery of correlated insulating states and superconductivity at temperatures ~3 K.

Atomfair (atomfair.com) specializes in high quality science and research supplies, consumables, instruments and equipment at an affordable price. Start browsing and purchase all the cool materials and supplies related to 2D Silicon-Based Heterostructures!

← Back to Prior Page ← Back to Atomfair SciBase