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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2187| Title: | Enhancing the thermopower and tuning the resistivity in Bi2Se3 with Fe-doping |
| Authors: | REJAUL, S.K. Shirolkar, Mandar M. DHARA, BARUN KULKARNI, SULABHA DESHPANDE, APARNA Dept. of Physics |
| Keywords: | Thermopower Bi2Se3 Fe-doping Polyol method Bismuth selenide Microcomposites of pure 2015 |
| Issue Date: | Oct-2015 |
| Publisher: | Elsevier B.V. |
| Citation: | Chemical Physics Letters, 638, 94-98. |
| Abstract: | We report the synthesis of undoped bismuth selenide (Bi2Se3) and iron (Fe) doped (upto 30%) bismuth selenide (Bi2Se3) powder samples by polyol method. The samples consist of submicron size platelets with thickness ranging between 5 and 10 nm. The temperature dependent thermopower measurements reveal all these materials to be n-type in nature and the room temperature thermopower increases with Fe concentration. The electrical resistivity of undoped Bi2Se3 shows metallic behavior in 5–300 K range, but the Fe-doped samples show semiconducting behavior. Thus we find Fe-doping of Bi2Se3 to be a promising route for tuning the properties of Bi2Se3 for applications. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2187 https://doi.org/10.1016/j.cplett.2015.08.029 |
| ISSN: | 14-Sep |
| Appears in Collections: | JOURNAL ARTICLES |
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