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您的检索式：作者名="Mikhail V.Kuznetsov"
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| 1 | Incubation of PbSe Thin Films in a Tin(Ⅱ) Salt Aqueous Solution:Modification and Ion-Exchange Reactions显示文摘Topochemical ion-exchange reactions between solid micro-and nanostructured metal chalcogenides and aqueous salt solutions are generally used for formation of composite structures based on initial metal chalcogenides and products of their ion-exchange transformation.However,ion exchange has promises as a route to obtaining both composites and solid solutions based on the initial and the end chalcogenide phases.With the help of the ion-exchange technique,single-phase films of Pb_(1-x)Sn_xSe substitutional solid solutions with a tin content up to^2 at.%,which are promising for mid-and long-wavelength infrared radiation(IR)optoelectronics,have been obtained at the interface between PbSe polycrystalline thin films and SnCl_2 aqueous solutions containing sodium citrate.It has been shown that the pH value and temperature of the reaction system play an important role in the ion-exchange process.Incubation of lead selenide(PbSe)films in a tin(Ⅱ)salt aqueous solution also leads to their modification with oxygen-containing tin compounds to a depth of^3 nm.Differences in the film structure,such as changes in the coherent scattering region sizes and orientation of crystallites along the[220]direction,which arise during the contact with citrate-containing SnCl_2 solutions,have also been revealed.For the first time,an idea of the existence of a relatively wide reaction zone of an intragranular topochemical ion-exchange reaction in an aqueous solution,within which substitutional solid solutions can form in micro-and nanostructured systems,has been set forth. | Zinaida I.Smirnova Larisa N.Maskaeva Vyacheslav F.Markov Vladimir I.Voronin Mikhail V.Kuznetsov | 2015 | Journal of Materials Science & Technology2015，31，8： | 0 |
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