Transition Metal Trichalcogenides as Novel Layered Nano Species
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Transition Metal Trichalcogenides as Novel Layered Nano Species
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| Creator |
Fedorov, V.E.
Artemkina, S.B. Grayfer, E.D. Mironov, Y.V. Romanenko, A.I. Antonova, I.V. Medvedev, M.V. |
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| Subject |
Niobium Trichalcogenides
Nanocrystals Colloids Semiconductors Thin films |
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| Description |
In search for new materials for nanoelectronics, many efforts have been put into development of chem-istry and physics of graphene, and, more recently, of other inorganic layered compounds having a bandgap (h-BN, MoS2 etc.). Here we introduce a new view on the family of transition metal trichalcogenides MQ3 (M=Ti, Zr, Nb, Ta; Q=S, Se), which were earlier considered as quasi-one-dimensional systems, and demon-strate that they also may be regarded as layered species suitable for exfoliation by a chemical method. Stable, concentrated colloidal dispersions of high-quality crystalline NbS3 and NbSe3 nanoribbons down to mono- and few-layer-thick are prepared by ultrasonic treatment of the bulk compound in several common organic solvents (DMF, NMP, CH3CN, iPrOH, H2O/EtOH). The dispersions and thin films prepared from them by vacuum filtration or spraying are characterized by a set of physical-chemical methods. Current-voltage characteristics of the NbS3 films show that charge carrier mobility is as high as 1200 – 2400 cm2V-1s-1, exceeding that of MoS2 and making NbQ3 promising potential candidates for field-effect transistors.
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| Publisher |
Sumy State University
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| Date |
2014-05-28T06:37:03Z
2014-05-28T06:37:03Z 2013 |
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| Type |
Article
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| Identifier |
Transition Metal Trichalcogenides as Novel Layered Nano Species [Текст] / V.E. Fedorov, S.B. Artemkina, E.D. Grayfer et al.
// Nanomaterials: Applications & Properties (NAP-2013) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2013. - V.2, No1. - 01NTF34
http://essuir.sumdu.edu.ua/handle/123456789/35223 |
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| Language |
en
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