The unoccupied electronic structure of the semi-conducting room temperature molecular magnet V(TCNE)2
2008 (English)In: Chemical Physics Letters, ISSN 0009-2614, Vol. 452, no 1-3, 173-177 p.Article in journal (Refereed) Published
The unoccupied electronic structure of the organic-based magnet V(TCNE)x (TCNE = tetracyanoethylene, x~2) has been studied with near edge x-ray absorption fine structure (NEXAFS) and with photoelectron spectroscopy (PES). By studying V(TCNE)x upon sodium-doping, the electron-accepting state, i.e. the lowest unoccupied molecular orbital (LUMO) of V(TCNE)x was shown mainly to be localized on (TCNE)--units in contrast to the hole-accepting state, i.e. the highest occupied molecular orbital (HOMO), which previously was assigned primarily to be V(3d)-derived. This study also showed that there are trap states for electron transport located below the (TCNE)2- level, likely leading to decreased electron mobility.
Place, publisher, year, edition, pages
Institutionen för teknik och naturvetenskap , 2008. Vol. 452, no 1-3, 173-177 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-11143DOI: 10.1016/j.cplett.2007.12.049OAI: oai:DiVA.org:liu-11143DiVA: diva2:17583
Original publication: Elin Carlegrim, Anna Kanciurzewska, Michel P. de Jong, Carl Tengstedt and Mats Fahlman, The unoccupied electronic structure of the semi-conducting room temperature molecular magnet V(TCNE)2, 2008, Chemical Physics Letters, (452), 1-3, 173-177. http://dx.doi.org/10.1016/j.cplett.2007.12.049. Copyright: Elsevier Ltd, http://www.elsevier.com/2008-02-272008-02-272010-05-05