Title Topological surface state enhanced photothermoelectric effect in $Bi_{2}Se_{3}$ nanoribbons Author Yan, Yuan Liao, Zhi-Min Ke, Xiaoxing Van Tendeloo, Gustaaf et al. Faculty/Department Faculty of Sciences. Physics Publication type article Publication 2014 Washington , 2014 Subject Physics Chemistry Engineering sciences. Technology Source (journal) Nano letters / American Chemical Society. - Washington Volume/pages 14(2014) :8 , p. 4389-4394 ISSN 1530-6984 ISI 000340446200028 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract The photothermoelectric effect in topological insulator Bi2Se3 nanoribbons is studied. The topological surface states are excited to be spin-polarized by circularly polarized light. Because the direction of the electron spin is locked to its momentum for the spin-helical surface states, the photothermoelectric effect is significantly enhanced as the oriented motions of the polarized spins are accelerated by the temperature gradient. The results are explained based on the microscopic mechanisms of a photon induced spin transition from the surface Dirac cone to the bulk conduction band. The as-reported enhanced photothermoelectric effect is expected to have potential applications in a spin-polarized power source. E-info https://repository.uantwerpen.be/docman/iruaauth/66883b/14ec7bc9956.pdf http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000340446200028&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000340446200028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000340446200028&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle