Abstract
In this work, we have successfully designed ordered luminescent multilayer films based on La-doped nonmagnetic or magnetic inorganic nanostructure with electronic microenvironment (EM). The inorganic nanosheets with opposite charge can assemble EM between the interlayers. At the same time, their elements on nanosheets of layer double hydroxides (LDHs) are facile to be replaced so that we can introduce transition metal or lanthanide elements. Besides, ferromagnetic effect (FE) can be formed in this microenvironment due to introducing transition metal on LDHs nanosheets. As a result, we confirm that EM, FE, and doping La element in the LDHs can affect the vibration of backbone of chromophores and then prolong the luminescent lifetime, which suggests a new pathway for developing the novel light-emitting thin films.
Highlights
Nowadays, an attractive target has been focused on which is layered materials for both fundamental research and practical application because of their intrinsic unique twodimensional structure, rich physics, and chemical properties [1,2,3]
Due to the successful achievement of the monolayer or few nanosheets about layered materials, the layered materials have been serving as functional units to build ordered thin films via layer-by-layer self-assemble method (LBL method)
Luminescent materials based on lanthanide elements have been candidates in order to be applied in optoelectronic devices and optical communications [17, 18]
Summary
An attractive target has been focused on which is layered materials for both fundamental research and practical application because of their intrinsic unique twodimensional structure, rich physics, and chemical properties [1,2,3]. Luminescent materials based on lanthanide elements have been candidates in order to be applied in optoelectronic devices and optical communications [17, 18]. A sensitizer was assembled by lanthanide complexes pillaring in inorganic layered materials between the interlayer, and it has attracted tremendous attention for practical device applications [21]. By rationally choosing the inorganic nanosheets; we proved that the EM and FE can be beneficial for the optical properties of those luminescent thin films based on La-doped LDHs. this work put forward a viable way for fabricating ordered La-doped inorganic nanostructure with EM and FE, which can provide better chance for the application of the generation of optical devices
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