Synthesis, structure and optical properties of Sb2Se3

Sodium‐Mediated Epitaxial Growth of 2D Ultrathin Sb2Se3 Flakes for Broadband Photodetection

“…On the basis of ( αhν ) 2 versus hν for the direct bandgap semiconductor of Sb 2 Se 3 , the bandgap values of 2D Sb 2 Se 3 flakes with different thickness are estimated by extrapolating the linear portion on the plots of ( αhν ) 2 versus hν to ( αhν ) 2 = 0, as shown in Figure 4e. As can be seen, E g values range from 1.89 to 1.52 eV with the thickness increasing from 8 to 18 nm (Figure 4f), which are generally larger than previously reported values for bulk Sb 2 Se 3 33,50–52. The estimated optical bandgap for 2D Sb 2 Se 3 flakes indicates a successive blueshift with the decrease of thickness due to the enhanced quantum confinement effect in 2D system.…”

Review of Recent Progress in Antimony Chalcogenide‐Based Solar Cells: Materials and Devices

“…Nonvacuum chemical solution methods, such as CBD, successive ionic layer adsorption and reaction (SILAR), electrochemical deposition, spray pyrolysis and other spin-casting methods have been reported by scientists. [44][45][46][47][48][49] As illustrated above, Sb 2 Se 3 films can also be deposited on substrates by CBD method when sodium selenosulfate is used as the Se source. Yang et al [50] developed a photoelectrochemical deposition method for the synthesis of compound semiconductors.…”

“…For the deposition of Sb 2 Se 3 films, we can also classify the techniques into non‐vacuum and vacuum methods. Non‐vacuum chemical solution methods, such as CBD, successive ionic layer adsorption and reaction (SILAR), electrochemical deposition, spray pyrolysis and other spin‐casting methods have been reported by scientists . As illustrated above, Sb 2 Se 3 films can also be deposited on substrates by CBD method when sodium selenosulfate is used as the Se source.…”

Gesucht: ein verewigter Pflanzenfreund

“…Sb 2 Se 3 , a long‐known semiconductor, gained recent interest for possible applications in thermoelectrics, as a photodetector material, and an absorber in solar cells 1,2. The optical bandgap of the bulk material is about 1.2 eV,1 but was found to be larger in nanowires 2.…”

“…Sb 2 Se 3 , a long‐known semiconductor, gained recent interest for possible applications in thermoelectrics, as a photodetector material, and an absorber in solar cells 1,2. The optical bandgap of the bulk material is about 1.2 eV,1 but was found to be larger in nanowires 2. Concordantly, the electronic band structure of Sb 2 Se 3 , calculated in the local‐density approximation (LDA) of the density functional theory (DFT), shows a direct bandgap of 1.14 eV, and moreover, reveals quasi‐one‐dimensional character with valence electrons being localized along the 1 ∞ [Sb 4 Se 6 ] ribbons 3…”