Seminarium ACMiN: Photoelectrochemical properties of CuBi2O4-based electrodes prepared via spin-coating for solar water splitting

Akademickie Centrum Materiałów i Nanotechnologii AGH zaprasza na seminarium, które odbędzie się w formie hybrydowej 28 kwietnia 2022 r. o godz. 14.00.

Wykład zatytułowany „Photoelectrochemical properties of CuBi2O4-based electrodes prepared via spin-coating for solar water splitting” wygłosi dr Francesco Caddeo (Center for Hybrid Nanostructures, Hamburg University, Niemcy).

udział stacjonarny: ACMiN AGH (Kraków, ul. Kawiory 30, bud. D-16, sala 1.02A)
udział zdalny: link 


Photoelectrochemical (PEC) water splitting is one of the most promising technologies for the conversion of solar energy into hydrogen gas, which can be stored and used on demand as a fuel with net-zero CO2 emissions. Copper bismuth oxide (CuBi2O4) is recently emerging as a promising metal-oxide to be used as a light harvesting material in the photocathode of a PEC cell and is attracting increasing attention due to its well-suited bandgap of ⁓ 1.8 eV, its conduction band position of -0.7 V vs NHE (NHE = Normal Hydrogen Electrode) and its highly anodic onset potential of ca. 0.8 V vs RHE (RHE = Reversible Hydrogen Electrode, at pH ⁓ 5), which makes it an ideal material to be implemented in a tandem device for unassisted solar water splitting. In our labs, we have developed a spin-coating procedure that allows us to fabricate highly uniform CuBi2O4 films with pure crystalline phase and various thicknesses on top of fluorine-doped tin oxide coated glass (FTO) used as a support. During my talk, I will present recent results on the synthesis, characterization and photoelectrochemical properties of CuBi2O4 based photo-electrodes protected with uniform coatings of TiO2 overlayers deposited using either Atomic Layer Deposition (ALD) or spin-coating of a dispersion of TiO2 nanoparticles.