Hybrid photocathode based on a Ni molecular catalyst and Sb₂Se₃ for solar H₂ production

Abstract

We report the first H2 hybrid photocathode based on Sb2Se3 and a precious metal free catalyst, NiP. Through the use of a high surface area TiO2 scaffold, we successfully increased...

Noble Metal Plasmon–Molecular Catalyst Hybrids for Renewable Energy Relevant Small Molecule Activation

“…Hybrids of molecular catalysts and semiconductors are promising photocatalysts for CO 2 reduction. ,− Here, the inorganic/organic semiconductors act as photosensitizers, and photoexcited electrons are transferred to the molecular catalyst, enhancing the catalytic reaction. , The introduction of noble metal nanoparticles often facilitates interfacial charge transfer between semiconductors and molecular catalysts. In the following reports, we shall investigate the mechanisms by which plasmonic metal nanoparticles facilitate interfacial charge transfer via the enhancement of charge carrier generation induced by LSPR, injection of hot electrons into the conduction band of neighboring semiconductors, direct transmission of energy to semiconductors through resonant energy transfer, separation of photogenerated electrons and holes, and provision of additional catalytic sites for the reduction of CO 2 to augment the overall catalytic efficiency of CO 2 conversion.…”

Hydration deactivation mechanism of the 〈100〉 oriented cuprous oxide photocathodes in solar water splitting and the regenerated three-dimensional structure

“…), there is a dearth of suitable p-type photocathodes for water reduction due to their inferior stability. 11,12 With a maximum theoretical solar-to-hydrogen efficiency of about 18%, cuprous oxide (Cu 2 O) is a promising photocathode whose band gap can be adjusted between 2.0 and 2.3 eV using various preparation techniques. [13][14][15][16] At the same time, Cu 2 O is an inexpensive inorganic oxide semiconductor whose constituent elements are abundant and non-toxic.…”

Multi‐Phase Sputtered TiO2‐Induced Current–Voltage Distortion in Sb2Se3Solar Cells

“…Antimony selenide (Sb 2 Se 3 ) has rapidly risen to prominence as a candidate material for application as an absorber layer, primarily in thin-film photovoltaic (PV) solar cell devices, but also for photodetectors and photoelectrochemical water splitting. [1][2][3][4][5] In addition to this material's favorable combination of properties; boasting a nearly ideal 1.18 eV band gap, [6] high absorption coefficient, [7][8][9] low toxicity and high stability, [10][11][12] Sb 2 Se 3 has further demonstrated a high degree of versatility. It is capable of being deposited in both substrate [13][14][15][16][17] and superstrate [18][19][20][21][22][23][24][25][26] geometries and with a wide variety of deposition techniques; from low temperature solution-based methods, [21,[24][25][26] to high temperature physical vapor deposition approaches.…”