en The Role of Fe on Structure, Morphology and Band Gap Energy of Cu2FexSn1-x S3 Flower-like Nanostructures Synthesized via Solvothermal Method تخصصی Special پژوهشي Research <p>In this work, quaternary chalcogenite Cu2FexSn1-xS3 (CFTS) flower-like nanostructures (where x=0,0.6,1) have been successfully synthesized by solvothermal approach. The nanocrystals were characterized by means of X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM),Raman Scattering spectroscopy, and UV-Vis-NIR absorption spectroscopy. The nanocrystals sizes are calculated by Deby Sherrer formula to be S1(x=0) 10.71nm, S2(x=0) 8.15 nm and S3(x=1) 22 nm. UV-Vis absorption spectra of as-synthesized CFTS crystals dispersed in ethanol showed the increasing of absorption in visible region of light. The band gap energies of samples were: 1.06 eV for S1 (x=0), 1.37 eV for S2 (x=0.6) and 1.61 eV for S3 (x=1) respectively. As can be seen the optical band gap of samples increases from 1.06 to 1.61 eV by increasing of Fe dopant.</p> <p>In this work, quaternary chalcogenite Cu2FexSn1-xS3 (CFTS) flower-like nanostructures (where x=0,0.6,1) have been successfully synthesized by solvothermal approach. The nanocrystals were characterized by means of X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM),Raman Scattering spectroscopy, and UV-Vis-NIR absorption spectroscopy. The nanocrystals sizes are calculated by Deby Sherrer formula to be S1(x=0) 10.71nm, S2(x=0) 8.15 nm and S3(x=1) 22 nm. UV-Vis absorption spectra of as-synthesized CFTS crystals dispersed in ethanol showed the increasing of absorption in visible region of light. The band gap energies of samples were: 1.06 eV for S1 (x=0), 1.37 eV for S2 (x=0.6) and 1.61 eV for S3 (x=1) respectively. As can be seen the optical band gap of samples increases from 1.06 to 1.61 eV by increasing of Fe dopant.</p> Chalcogenides, CFTS, Nanostructures, Semiconducting materials, Solvothermal method Chalcogenides, CFTS, Nanostructures, Semiconducting materials, Solvothermal method 990 993 http://opsi.ir/browse.php?a_code=A-10-1-935&slc_lang=en&sid=1 Pariya Nazari Pariya Nazari pariya.nazari93@gmail.com 10031947532846004242 10031947532846004242 Yes Ahmad Yazdani Ahmad Yazdani yazdania@modares.ac.ir 10031947532846004243 10031947532846004243 No Zohreh shadrokh Zohreh shadrokh shadrokhzohreh@gmail.com 10031947532846004244 10031947532846004244 No Nasim Farahani Nasim Farahani farahani.nasim1989@gmail.com 10031947532846004245 10031947532846004245 No Roghayeh Seifi Roghayeh Seifi Roghiye.seifi@gmail.com 10031947532846004246 10031947532846004246 No