Precise integration of two-dimensional (2D) semiconductors and high-dielectric-constant (k) gate oxides into three-dimensional (3D) vertical-architecture arrays holds promise for developing ultrascaled transistors1,2,3,4,5, but has proved challenging. Here we report the epitaxial synthesis of vertica...
The electronic band structure, crystal orbital Hamilton population (COHP), high-frequency dielectric constants ϵ∞, and deformation potentials are calculated using PBEsol functional with 12 × 12 × 12 k-point meshes. The elastic constants Cij, static dielectric constants ϵs, and effec...
where e is the elementary charge, L is the perovskite film thickness, ε0 is the vacuum permittivity, ε is the relative dielectric constant (typically 35 for perovskites), and VTFL is the onset voltage of trap-filled limit (TFL) region. As shown in Fig. 5e, The VTFL of H-NiOx-based...
where ε1(ω)subscript𝜀1𝜔\varepsilon_{1}(\omega) and ε2(ω)subscript𝜀2𝜔\varepsilon_{2}(\omega) are the real and imaginary parts of the dielectric function, and ω𝜔\omega is the photon frequency. Within the one-electron picture, the imaginary part of the dielectric...
The effective cluster interactions and dielectric constant were obtained from a L1-regularized least-squares regression,38 with the regularization parameters chosen to minimize cross-validation error.38 By this procedure, a root-mean-squared error below 7 meV/atom has been obtained. The DFT ...
We next measured the dielectric constants (ε) by using the capacitance-frequency curve (Figure 3E) on 2D (PEA)2PbI4 PSC. The relative dielectric constant was calculated to be 5.8. To evaluate the quality and the electrical performance of the (PEA)2PbI4 PSCs, we measured the current-volta...
Single-crystalline van der Waals layered dielectric with high dielectric constant Article09 March 2023 Wafer-scale high-κ dielectrics for two-dimensional circuits via van der Waals integration ArticleOpen access24 April 2023 Introduction Since the discovery of graphene1, 2D materials and van der Waals...
In the first phase, FPGA (e.g., Xilinx Virtex UltraScale+ VU9P with fFPGA = 350 MHz clock frequency) is used to realize SPU; and CPU (e.g., Intel Xeon Platinum 8163) can be used to realize MPU. Inside one commodity-level desktop, we can install several FPGA cards (e.g....
47 The solvation effects in aqueous solution were considered with the Poisson-Boltzmann implicit solvation model,48 where the dielectric constant ɛ of water was taken as 80. The effects of dipole correction for adsorbates were also included. The theoretical overpotential (ηt) can be deduced ...
MP has also calibrated the static dielectric constant of 1056 materials using density functional perturbation theory (DFPT)12, but frequency- dependent dielectric functional data is missing. Although PBE provides great insights in distinguishing non-metallic materials, the bandgaps of materials are ...