A Novel Thermochemical Metal Halide Treatment for High-Performance Sb2Se3 Photocathodes.

ABSTRACT: The fabrication of cost-effective photostable materials with optoelectronic properties suitable for commercial photoelectrochemical (PEC) water splitting represents a complex task. Herein, we present a simple route to produce Sb2Se3 that meets most of the requirements for high-performance photocathodes. Annealing of Sb2Se3 layers in a selenium-containing atmosphere persists as a necessary step for improving device parameters; however, it could complicate industrial processability. To develop a safe and scalable alternative to the selenium physical post-processing, we propose a novel SbCl3/glycerol-based thermochemical treatment for controlling anisotropy, a severe problem for Sb2Se3. Our procedure makes it possible to selectively etch antimony-rich oxyselenide presented in Sb2Se3, to obtai

SUBMITTER: Polivtseva S 

PROVIDER: S-EPMC7824267 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature