Vertical growth of SnS2 nanobelt arrays on CuSbS2 nanosheets for enhanced photocatalytic reduction of CO2

Two-dimensional SnS₂ nanobelt arrays vertically grown on two-dimensional CuSbS₂ nanosheet (2D SnS₂⊥2D CuSbS₂) heterostructures were synthesized via a facile solution-phase growth route. The resultant SnS₂⊥CuSbS₂ heterostructures showed enhanced photocatalytic activity for CO₂ reduction because of unique structural advantages and the p-n heterojunction with matched energy band alignment.

A novel signal self-enhancement photoelectrochemical immunosensor without addition of a sacrificial agent in solution based on Ag2S/CuS/α-Fe2O3 n–p–n heterostructure films

A novel signal self-enhancement photoelectrochemical immuno-sensor has been developed based on the curing of sacrificial agent SO₃²⁻ coated-Au NPs sensitizing Ag₂S/CuS/α-Fe₂O₃ n–p–n hetero-structure films for the first time.

Solar light harvesting with multinary metal chalcogenide nanocrystals

The paper reviews the state of the art in the synthesis of multinary (ternary, quaternary and more complex) metal chalcogenide nanocrystals (NCs) and their applications as a light absorbing or an auxiliary component of light-harvesting systems. This includes solid-state and liquid-junction solar cells and photocatalytic/photoelectrochemical systems designed for the conversion of solar light into the electric current or the accumulation of solar energy in the form of products of various chemical reactions. The review discusses general aspects of the light absorption and photophysical properties of multinary metal chalcogenide NCs, the modern state of the synthetic strategies applied to produce the multinary metal chalcogenide NCs and related nanoheterostructures, and recent achievements in the metal chalcogenide NC-based solar cells and the photocatalytic/photoelectrochemical systems. The review is concluded by an outlook with a critical discussion of the most promising ways and challenging aspects of further progress in the metal chalcogenide NC-based solar photovoltaics and photochemistry.

Photocurrent enhancement in a Cu2Cd(SSe)2 photoanode synthesized via an arrested precipitation route

Nanostructured combinatorial quaternary Cu₂Cd(SSe)₂ thin films synthesized via a self organized arrested precipitation technique for photoelectrochemical cell performance.