Electrodeposition Conditions Effect Sb₂Se₃ Thin‐Film Properties

Abstract

Sb 2 Se 3 is presented as a promising light absorber material of low-cost and good photoelectrocatalytic activity. Among the different synthetic methods for this semiconductor, electrodeposition has gained attention. In this context, a study of the electrodeposition parameters is an important aspect for obtaining films with optimized photocatalytic characteristics. Thus, in this work, we studied the effect of precursor concentration, the total charge of deposition, the type of supporting electrolyte, bath temperature, and the deposition potential on obtaining antimony selenide thin films electrochemically and on the morphological, structural, and optoelectronic properties of these films. One of the most interesting observations was the huge impact of these parameters on the morphology. The Serich films showed a tendency to have a rod-like morphology and relatively better stability to photocorrosion. The thickness of the film is another parameter that hugely affected the photocatalytic properties. From the evaluation of the photocurrent values presented by the films, the optimized electrodeposition parameters were found.

Synaptic plasticity and learning behaviour in multilevel memristive devices

“…8(a). When a negative voltage is applied to the top electrode (Pt) and a positive terminal is connected to the bottom electrode (FTO), V Se is formed 54,55 and moves towards the top electrode, whereas Se 2− starts moving towards the bottom electrode in both cells, as shown in Fig. 8(b).…”

Analysis of an Electrolyte’s pH-Dependent Performance during Solar Water Splitting

“…23 For the diffraction pattern of the Sb 2 Se 3 sample, peaks with 2θ angles of 28.141, 32.158, and 45.474°can be indexed to the (112), (013), and (020) planes of orthorhombic Sb 2 Se 3 (PDF# 01-075-1462), respectively. 24 The peaks corresponding to the substrate (SnO 2 , PDF# 00-041-1445) were indexed with the symbol "clover". The Raman spectra displayed in Figure 3 show high peaks at 443 and 610 cm −1 for E g and A 1g modes of rutile TiO 2 , 25 respectively, thereby confirming that the predominant TiO 2 crystal structure is rutile.…”

Solvent composition regulates the Se : Sb ratio in antimony selenide nanowires deposited from thiol–amine solvent mixtures

“…Several methods to deposit antimony selenide from a solution are available such as chemical bath deposition and electrodeposition. [12][13][14] However, these methods oen result in nanocrystalline lms that lack the preferred orientation needed to exploit the unique properties of antimony selenide. Solution casting of dissolved elemental precursors prepared through a "dimensional reduction" approach constitutes a facile method that results in larger microcrystals, more suitable for PEC and PV.…”