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Prospects for Wide Bandgap and Ultrawide Bandgap CMOS Devices
IEEE Transactions on Electron Devices, 2020Power and RF electronics applications have spurred massive investment into a range of wide and ultrawide bandgap semiconductor devices which can switch large currents and voltages rapidly with low losses. However, the end systems using these devices are often limited by the parasitics of integrating and driving these chips from the silicon ...
Samuel James Bader +10 more
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Effect of liquid crystal alignment on bandgap formation in photonic bandgap fibers
Optics Letters, 2007A simple analytical model is proposed to study the formation of bandgaps in liquid crystal photonic bandgap fibers. The model shows good agreement with full-vectorial plane-wave simulations. Particularly, bandgap splitting is observed due to anisotropy.
J, Sun, C C, Chan
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Surface‐wave bandgap of polarization dependent electromagnetic bandgap structures
Microwave and Optical Technology Letters, 2007AbstractPolarization‐dependent reflection‐phase feature could be realized by using a rectangular patch in mushroom‐like electromagnetic bandgap (EBG) structures. The surface‐wave bandgap of this polarization‐dependent EBG structure have been investigated in this article.
Yunqi Fu, Naichang Yuan
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Explicit Characterization of Bandgap References
2006 IEEE International Symposium on Circuits and Systems, 2006Conspicuously absent in the literature are explicit relationships between the output voltage and temperature of bandgap references. In this paper an explicit relationship for the output voltage of a popular bandgap reference structure is developed. Within the context of this explicit relationship, temperature stability properties of references are ...
Xin Dai +2 more
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Science, 2019
Solar Cells The bandgap of the black α-phase of formamidinium-based lead triiodide (FAPbI3) is near optimal for creating high-efficiency perovskite solar cells. However, this phase is unstable, and the additives normally used to stabilize this phase at ambient temperature—such as methylammonium, caesium, and bromine—widen its bandgap. Min et al.
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Solar Cells The bandgap of the black α-phase of formamidinium-based lead triiodide (FAPbI3) is near optimal for creating high-efficiency perovskite solar cells. However, this phase is unstable, and the additives normally used to stabilize this phase at ambient temperature—such as methylammonium, caesium, and bromine—widen its bandgap. Min et al.
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Bandgap engineering through nanoporosity
Nanoscale, 2014Considering 105 ZnO polymorphs we use many body GW and density functional based calculations to probe how the band gap is affected by nanoporosity. Within a reasonable range of energetic stability, we predict that nanoporosity can induce band gap increases of up to ~1.5 eV relative to wurtzite ZnO.
Demiroglu, I +3 more
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Interfacial engineering in graphene bandgap
Chemical Society Reviews, 2018This review summarises recent advances in interfacial engineering of the graphene bandgap via chemical engineering and physical engineering.
Xiaozhi Xu +7 more
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Wide-bandgap, low-bandgap, and tandem perovskite solar cells
Semiconductor Science and Technology, 2019Abstract Organic-inorganic metal halide perovskite single-junction solar cells have attracted great attention in the past few years due to a high record power conversion efficiency (PCE) of 23.7% and low-cost fabrication processes. Beyond single-junction devices, low-temperature solution processability, and bandgap tunability make the
Zhaoning Song +5 more
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