Transferred monolayer MoS₂ onto GaN for heterostructure photoanode: Toward stable and efficient photoelectrochemical water splitting.

ABSTRACT: Solar-driven photoelectrochemical water splitting (PEC-WS) using semiconductor photoelectrodes is considered a promising solution for sustainable, renewable, clean, safe and alternative energy sources such as hydrogen. Here, we report the synthesis and characterization of a novel heterostructure MoS₂/GaN to be used as a photoanode for PEC-WS. The heterostructure was synthesized by metal-organic chemical vapor deposition of single crystalline GaN onto a c-plane sapphire substrate, followed by the deposition of a visible light responding MoS₂ monolayer (E_g = 1.9 eV) formed by a Mo-sulfurization technique. Our experimental results reveal that MoS₂/GaN photoanode achieved efficient light harvesting with photocurrent density of 5.2 mA cm^-2

SUBMITTER: Hassan MA 

PROVIDER: S-EPMC6934777 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature