Hayati MAMURM.R.A. BHUİYAN2024-07-242024-07-2420192146-4987http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/22478In this study, the selenium (Se) doped bismuth telluride $Bİ_2Te_3$ nanocrystalline material synthesis by using a simple chemical routewas presented. The bismuth (III) nitrate pentahydrate $Bİleft(NO_3right).5H_2O$, telluride dioxide $TeO_2$ and Se powder were dissolved by nitricacid $HNO_3$. Herein, the two–step co–precipitation chemical route by using the sodium hydroxide NaOH and sodium borohydride$NaBH_4$ was employed. Different types of characterization such as X–ray diffraction (XRD), scanning electron microscopy (SEM),energy dispersive X–ray (EDX), transmission electron microscopy (TEM), atomic force microscopy (AFM), ultraviolet absorbance(UV) and Fourier transform infrared spectrometry (FT–IR) were occupied to the $Bi_2Te_{24}Se_{0.6}$ nanocrystalline powders and pelletswhich were developed. According to the measurement results, $Bi_2Te_{24}Se_{0.6}$ thermoelectric material was obtained in nano dimensions.engAraştırma Makalesi10.7212/zkufbd.v9i1.1215