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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Influence of Doping on Hybrid Organic-Inorganic WO3(4,4'-bipyriclyl)_(0.5) Materials
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Influence of Doping on Hybrid Organic-Inorganic WO3(4,4'-bipyriclyl)_(0.5) Materials

机译：掺杂对有机-无机杂化WO3（4,4'-双吡啶基）_（0.5）材料的影响

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摘要

In an effort to develop hybrid organic-inorganic tungstates as novel functional electronic materials, single crystals and films of WO3(4,4'-bipyridyl)_(0.5) have been prepared. These materials are then doped with Na~+, Ca~(2+), and K~+ ions by ion implantation. For cross-comparison, all the materials were characterized before and after ion implantation using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and resistivity measurements. Single-crystal XRD reveals the formation of a layered material where atomic layers of corner-shared WO5N octahedra are linked by bipyridyls that define cage structurespotentially to accommodate intercalated ions. A considerable amount of intercalated species, absent in the original samples, was observed in the XPS spectra of WO3(4,4'-bipyridyl)_(0.5)-coated films after ion implantation, as well as the formation of reduced tungsten species. The appearance of new modes in Raman spectra after ion implantation arises from symmetry reduction due to the intercalant, and an associated drop in electrical resistance can be attributed to the injection of charge carriers into the conduction band.
机译：为了开发杂化有机-无机钨酸盐作为新型功能电子材料，已经制备了WO3（4,4'-联吡啶基）_（0.5）的单晶和薄膜。然后通过离子注入将这些材料掺入Na〜+，Ca〜（2+）和K〜+离子。为了进行比较，在离子注入之前和之后使用X射线衍射（XRD），X射线光电子能谱（XPS），拉曼光谱和电阻率测量对所有材料进行了表征。单晶XRD揭示了层状材料的形成，其中角共享WO5N八面体的原子层由联吡啶连接，联吡啶潜在地定义了笼状结构以容纳嵌入的离子。离子注入后，在WO3（4,4'-联吡啶基）_（0.5）涂层的薄膜的XPS光谱中观察到大量的插层物种（原始样品中不存在），并且形成了还原的钨物种。离子注入后，拉曼光谱中新模式的出现是由于嵌入剂引起的对称性降低，并且相关的电阻下降可归因于将电荷载流子注入导带。

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