Influence of NaOH on the formation and morphology of Bi2Te3 nanostructures in a solvothermal process: From hexagonal nanoplates to nanorings

摘要: Abstarct Hexagonal bismuth telluride (Bi 2 Te 3 ) nanoplates and nanorings were synthesized by a simple solvothermal process. The composition, morphology size of the as-prepared products investigated X-ray diffraction transmission electron microscopy in detail. systemically experiments have been performed to investigate effect alkaline additive NaOH on composition Bi nanostructures. results indicate that is not necessary for formation nanostructures However, plays an important role determining When experiment was carried out with concentration ranging from 5 7 M, hexagonal edge length 140–280 nm synthesized. at higher 9–11 M, fabricated dissolving inner part first time. A possible mechanism has proposed based experimental analysis. This work may open new rational route synthesis which some scientific technological applications various functional devices.