Shape controlled synthesis of Cu3BiS3 nano- and microstructures by PEG assisted solvothermal method and functional properties

Hierarchical Cu3BiS3 Nanostructures with Thermally Controlled Morphology for Photoconductive, Photothermal, and Catalytic Applications

“…Also, ChCl/TU interfacial and bulk structural ordering would be reduced in the presence of water molecules of hydrated salts . In the meantime, excessive thiourea concentration prevents the development of secondary phases and enhances the crystallinity of Cu–Bi–S powders . Thiourea complexation with Cu and Bi reduces the free dissociated Cu 2+ and Bi 3+ ions and thus inhibits the formation of secondary phases .…”

“…25 CBS-2 has a slightly better photocurrent than CBS-1 and CBS-3 due to easier separation of electron− hole pairs in hierarchical one-dimensional (1D) nanorods than 1D/2D heterostructure. 21,63 Under light illumination, all three materials demonstrated a photovoltaic response with increased electrical current due to electron promotion and holes generation leading to increased charge carriers. Additionally, the linear current−voltage curve indicates the ohmic contact of the Ag/Cu 3 BiS 3 materials.…”

“…54 In the meantime, excessive thiourea concentration prevents the development of secondary phases and enhances the crystallinity of Cu−Bi−S powders. 21 Thiourea complexation with Cu and Bi reduces the free dissociated Cu 2+ and Bi 3+ ions and thus inhibits the formation of secondary phases. 55 ChCl and TU work synergistically to enhance the crystallization and anisotropic growth of ternary hierarchical CBS nanostructures with different morphologies.…”

“…It also exhibits favorable characteristics like substantial surface area, remarkable stability, etc., which make it a prospective contender for catalytic applications. Various morphologies of Cu 3 BiS 3 , including nanodots (0D), 1D nano-and microstructured nanorods, flower-like structures with ray-like rods growing from a core, 2D nanosheets, and 3D flower-like hierarchical structures, − have been reported previously. However, controlling the morphology and growth of Cu 3 BiS 3 nanostructures remains an intriguing topic for synthesizing multifunctional materials .…”

Co-electrodeposition of Cu3BiS3 thin films in weakly alkaline aqueous solutions for photovoltaic application

“…Figure 6a shows the transmission spectra of CBS-1.0, CBS-1.5, CBS-2.0, and CBS-2.5. By translating the transmission spectra to absorption spectra with the equation: a = -ln(1/T), the E g can be determined by following Tauc equation: (ahm) 2 = A(hm -E g ), where a is absorption coefficient, A is a constant, h is Planck's constant, and m is the frequency of incident light [35,36]. Figure 6b shows the E g of Cu 3 BiS 3 films with different Cu content.…”