Manipulating the built-in electric field (BEF) is a crucial challenge in the development of efficient photocatalysts, especially for S-scheme heterojunction . Herein, a precisely regulation of the BEF intensity of an S-scheme heterojunction was realized by adjusting the oxygen vacancy (OV) content ...
Considering the strong built-in electric field (BEF), dielectric-constant mismatch and 3D confinement of the electron and hole, the exciton states and interband optical transitions in [0001]-oriented Ga-rich wurtzite In x Ga 1 x N/GaN strained quantum dot (QD) nanowire heterostructures are ...
Introduction The nonlinear limits of conventional single-mode fibers were well recognized in the nineties during the earlier efforts to scale the peak powers of pulsed fiber lasers. These earlier efforts focused on lowering the NA and optimizing the refractive index profile of optical fibers to ...
Herein, we report a built‐in electric field (BEF) strategy to fabricate heterogeneous nickel phosphide‐cobalt nanowire arrays grown on carbon fiber paper (Ni2P‐CoCH/CFP) with large work function difference (ΔΦ) as bifunctional electrocatalysts for overall water splitting. Impressively, Ni2P‐...
on the principle of density matrix and the finite element method, the interband optical absorption between the electron and hole has been investigated in a wurtzite GaN / In x Ga 1 − x N / GaN spherical core–shell quantum dot (CSQD) including a strong built-in electric field (BEF)....
On this basis, WC and Co on nitrogen‐doped carbon (WC‐Co@NC) with an interfacial built‐in electric field (BEF) is designed as an ORR catalyst. The theoretical calculation certifies that the BEF of W─C─Co connections promote charge separation and directional migration, thus realizing the...
In this paper, we investigated theoretically the hydrogenic donor impurity states in strained wurtzite (In,Ga)N-GaN coupled quantum wells (CQWs). The variational approach is employed to obtain the dependence on built-in electric field (BEF), hydrostatic pressure, indium composition, and structure ...
Refractive indexoptical rectificationGaN-based step quantum wellBased on the compact density matrix approach, the linear and nonlinear refractive index change (RIC) and optical rectification (OR) coefficients in a GaN-based step QW with strong built-in electric field (BEF) have been theoretically ...
Addressing this, we introduce a novel built-in electric field (BEF) strategy to synthesize NiCoP–Co nanoarrays directly on Ti3C2TxMXene substrates (NiCoP–Co/MXene). This approach leverages a significant work function difference (ΔΦ), propelling these nanoarrays as adept bifunctional ...
Herein, we synthesized Fe 2 P/Ni 2 P by a facile Br-induced partial in situ phase transition strategy. This Fe 2 P/Ni 2 P possessed intensified built-in electric field (BEF) due to large work function difference (ΔΦ ), demonstrating outstanding OER and HER activity in alkaline ...