Janus monolayer SiXY (X = P, as and Sb, Y = N, P, As) for photocatalytic water splitting

Janus monolayer PXC (X = As/Sb) for photocatalytic water splitting with a negative Poisson's ratio

“…Hence, the light absorption of the material will be affected. 50 According to previous literature reports, 18,19,51 EPW and GW + BSE are both methods that can accurately be used to calculate the optical absorption properties. Here, we used the GW + BSE method to further calculate the optical properties of PXC monolayers, as shown in Fig.…”

“…[15][16][17] Notably, the 2D Janus SiXY materials (X = P, As and Sb, Y = N, P, As) have overcome the band-gap limitation for water decomposition, demonstrating an impressive efficiency of up to 18%. 18 Shen et al proposed the Janus PtXO (X = S and Se) materials, characterized by strong absorption up to 10 5 cm À1 and high carrier mobility up to 10 4 cm 2 V À1 s À1 . 19 Moreover, a novel photocatalytic model incorporating a vertical electric field (EF), as reported by Yang's group, may serve as a theoretical guide for Janus structured photocatalysts.…”

Robust Mode Connectivity-Oriented Adversarial Defense: Enhancing Neural Network Robustness Against Diversified $\ell_p$ Attacks

“…Researchers also analyze the mode connectivity when networks are tampered with backdoor or error-injection attacks or under the attack of a single type of perturbation [25]. To defend against multiple adversarial strategies, it would be interesting to explore incorporating different adversarial strategies into the learning of mode connectivity and generalize it for mode connectivity-based optimization.…”

A bicomponent synergistic MoxW1−xS2/aluminum nitride vdW heterojunction for enhanced photocatalytic hydrogen evolution: a first principles study

“…[14][15][16][17] The process of photocatalytic water splitting is roughly as follows: photocatalytic semiconductor absorbs photons to produce e À and h + , the photogenerated electrons transition to the conduction band, and a redox reaction occurs on the surface. [18][19][20][21] In theory, the more negative the conduction band potential is relative to the hydrogen electrode potential, the better the catalytic reduction ability of the material; the more positive the valence band potential is relative to the oxygen electrode potential, the better the oxidation performance of the material. [22][23][24][25] To decompose H 2 O, the band edge position of the semiconductor needs to cross the water reduction potential (H + /H 2 ) and the water oxidation potential (H 2 O/O 2 ), so that the electrons and holes have enough energy to split the entire water.…”