کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
187710 | 459647 | 2013 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: One-step electrochemical synthesis and physico-chemical characterization of CdSe nanotubes One-step electrochemical synthesis and physico-chemical characterization of CdSe nanotubes](/preview/png/187710.png)
Stoichiometric CdSe nanotubes (NTs) with a length of ∼700 nm have been successfully grown by one-step electrochemical technique into anodic alumina membranes. Cyclovoltammetric method has been performed using porous anodic alumina as template electrode and an electrochemical bath containing Cd2+ ions and SeO2. The as-prepared NTs have been identified as face-centred-cubic CdSe by XRD, while micro-Raman analysis reveals the typical peaks of nanostructured CdSe. The stoichiometric deposition of CdSe NTs formation is suggested by EDX analysis, with an average atomic percentage of Cd:Se of ∼0.93. Photoelectrochemical measurements reveal that CdSe NTs are photoactive materials with direct band gap of 1.75 eV and n-type semiconducting behaviour.
► Electrodeposition of (∼700 nm long) and stoichiometric CdSe nanotubes (Cd/Se 0.93/1) into anodic alumina template was first achieved by cyclic voltammetric method.
► CdSe nanotubes are identified through XRD and Raman spectra.
► Photoelectrochemical results indicates that CdSe NTs are photoactive with direct band gap of 1.75 eV and n-type semiconducting behaviour.
Journal: Electrochimica Acta - Volume 88, 15 January 2013, Pages 340–346