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@article{1641486, author = {Cermak, P. and Knotek, P. and Ruleova, P. and Holý, Václav and Palka, K. and Kucek, V. and Benes, L. and Navratil, J. and Drasar, C.}, article_location = {San Diego}, article_number = {SEP}, doi = {http://dx.doi.org/10.1016/j.jssc.2019.07.045}, keywords = {Thermoelectrics; Single crystal; Transition metal doping; Defects; Transport properties}, language = {eng}, issn = {0022-4596}, journal = {Journal of Solid State Chemistry}, title = {High power factor and mobility of single crystals of Bi2Se3 induced by Mo doping}, url = {https://www.sciencedirect.com/science/article/pii/S0022459619303792?via%3Dihub}, volume = {277}, year = {2019} }
TY - JOUR ID - 1641486 AU - Cermak, P. - Knotek, P. - Ruleova, P. - Holý, Václav - Palka, K. - Kucek, V. - Benes, L. - Navratil, J. - Drasar, C. PY - 2019 TI - High power factor and mobility of single crystals of Bi2Se3 induced by Mo doping JF - Journal of Solid State Chemistry VL - 277 IS - SEP SP - 819-827 EP - 819-827 PB - Elsevier SN - 00224596 KW - Thermoelectrics KW - Single crystal KW - Transition metal doping KW - Defects KW - Transport properties UR - https://www.sciencedirect.com/science/article/pii/S0022459619303792?via%3Dihub L2 - https://www.sciencedirect.com/science/article/pii/S0022459619303792?via%3Dihub N2 - Few binary compounds attract as much attention as Bi2Se3. In addition to its use as thermoelectric, it has become one of the prototype 3D topological insulators, and it has been demonstrated that doping in appropriate levels can induce magnetism and even superconductivity in bulk Bi2Se3. In this article, we continue the examination of doping with sixth group transition elements, namely, Mo. The solubility of Mo in the host matrix is very low; however, it induces remarkable changes in the material properties. For low doping levels, Mo changes the intrinsic defect structure of Bi2Se3 featuring the Se vacancies toward a structure characterized by embedded Bi-2 double layers. Counterintuitively, Mo doping markedly enhances the mobility of free charge carriers in Bi2Se3 and drives its thermoelectric power factor to its maximum value over a broad temperature range. We provide evidence that the rather disordered structure must not be necessarily detrimental to charge transport in Bi2Se3. ER -
CERMAK, P., P. KNOTEK, P. RULEOVA, Václav HOLÝ, K. PALKA, V. KUCEK, L. BENES, J. NAVRATIL a C. DRASAR. High power factor and mobility of single crystals of Bi2Se3 induced by Mo doping. \textit{Journal of Solid State Chemistry}. San Diego: Elsevier, 2019, roč.~277, SEP, s.~819-827. ISSN~0022-4596. Dostupné z: https://dx.doi.org/10.1016/j.jssc.2019.07.045.
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