 This research paper examines the effect of electric fields on the performance of tungsten selenide, WSE2, a semi-conducting material used in electrocatalysis. It found that when electrons are the dominant carriers, the material's performance is enhanced compared to when holes are the dominant carriers. Additionally, the authors calculated the Gibbs free energy in charge distribution of adsorbed hydrogen molecules on WSE2, which was consistent with experimental results. This article was authored by Sigao Wang, Honghui Wu, Chong Li, and others.