Wide-Bandgap Materials for Photonic and Phononic Applications
A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D1: Semiconductor Devices".
Deadline for manuscript submissions: closed (20 January 2025) | Viewed by 345
Special Issue Editors
Interests: quantum photonics; quantum phononics; two-dimensional materials; wide-bandgap semiconductors
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Wide-bandgap materials (WBMs) featuring bandgap energies above 2 eV have attracted significant attention for their potential to drive a paradigm shift in high-speed power electronics and advancements in clean energy due to their excellent carrier mobility and remarkable stability in high-voltage, high-frequency, and harsh environmental conditions. Other prominent inherent material properties of WBMs, such as broadband optical transparency and high mechanical strengths, have recently been demonstrated as beneficial to optical/photonic and acoustic/phononic applications as well. For instance, gallium nitride (bandgap of ~3.4 eV), empowering energy-efficient and environmentally friendly blue-light-emitting diodes (LEDs), has reshaped the field of illumination technology. Hallmark WBMs, diamond (bandgap of ~5.5 eV), and silicon carbide (bandgap of 2.4–3.3 eV depending on the polytype) have emerged as the leading quantum photonic platforms hosting single-photon emissions and long-coherent spin states at room temperature. The combination of wide-bandgap and piezoelectric features endorses aluminum nitride (bandgap of ~6.4 eV) and lithium niobate (bandgap of ~3.8 eV) as promising structural materials for nano-/micro-electromechanical systems (N/MEMSs).
This Special Issue seeks to celebrate the advances in wide-bandgap materials, including, but not limited to, diamond, silicon carbide (SiC), gallium nitride (GaN), aluminum nitride (AlN), lithium niobate (LiNbO3), hexagonal boron nitride (h-BN), and gallium oxide (Ga2O3), as well as to showcase research papers, communications, and review articles related to their applications in photonics and phononics. Theoretical studies (such as first-principle prediction and device design) and experimental works (such as materials synthesis and characterization, device fabrication and measurements, system integration and packaging) are all considered to be within the scope of this Special Issue.
Dr. Yanan Wang
Dr. Ufuk Kilic
Guest Editors
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Keywords
- wide-bandgap materials (WBMs)
- photonics
- optics
- phononics
- acoustics
- nano-/micro-electromechanical systems (N/MEMSs)
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