Peparation of Bi_2Te_3-polyaniline Heterostructured Nanorods by Two-step Electrochemical Depositions

We succeeded in the fabrication of polyananiline/Bi_2Te_3 heterostructured nanorods by means of two-step electrochemical depositions from aqueous solution.In the first step,polyani- line nanotubules were electrodeposited in alumina template.In the second step,using conducting polyaniline nanotubules as template,Bi_2Te_3_2Te_3 nanorods are well enveloped in polyaniline tubules in pores of alumina template.The two-step electrodeposition method provides a promising path for fabricating organic-inorganic heterostructured nanorods.