Comparison of the Properties of Bismuth Sulfide Thin Films Prepared by Thermal Evaporation and Chemical Bath Deposition

Characterization of porous bismuth oxide (Bi2O3) nanoplates prepared by chemical bath deposition and post annealing

“…It can be illustrated by the hierarchical porous structure of Bi2O3 film as observed by SEM. On one hand, sample A has a higher degree of crystallinity and lower Bi/O ratio comparing to sample B, which is beneficial to the photoreponse 27 . On the other hand, the porous structure of the nanoplates would lead to the larger specific surface area which contributed to more favorable adsorption of OHover the surfaces of photocatalysts and enhance the photocatalytic activity 28 .…”

Large‐Scale Synthesis of Ultrathin Bi2S3 Necklace Nanowires

“…Pnictide chalcogenides (Bi 2 S 3 in particular) are in fact known to show extremely wide changes in the bandgap energy and conductivity with changes in stoichiometry. [11,12] In the present work we report a "low"-temperature, gramscale route to Bi 2 S 3 nanowires of unprecedented thickness (< 2 nm), with a necklace architecture, strong excitonic features never before seen in bismuth chalcogenides, and extremely high extinction coefficients. The wires are colloidally stable for months even after extensive purification.…”

Shape‐Controlled Bi2S3 Nanocrystals and Their Plasma Polymerization into Flexible Films

“…However, it has been reported that the energy bandgap in Bi 2 S 3 can vary from 1.28 to 1.84 eV depending on the synthesis, probably due to the non-stoichiometry of the final product. [27] The fact that the absorption edge for the nanodots is less blue-shifted than the one for the nanorods might be explained as a quantum size effect, since the width of our nanorods is much smaller (4.6 nm) than the diameter of our nanodots (9.5 nm) and the width is known to be the most determining factor in the bandedge position of nanorods. [28] These nanocrystals can be deposited by spin-casting, dropcasting, or dip-coating on a substrate of choice and undergo nanocrystal plasma polymerization [7] to form a flexible film (see Fig.…”