Sunao Shoji's research while affiliated with Nara Women's University and other places

... The time lag between the electrochemical and optical emission spectrometric signals in this study was 2.6 s. 10,11 In the online ICP-OES, the instantaneous concentration c M of element M (Fe, Mn or Si) obtained by the spectroscopy was converted to the dissolution rate v M as follows; the electrode surface and to quantify the enrichment behavior by comparing the material compositions. ...

... Alternatively, measurements of the T 1 lifetimes might provide further valuable information. 79,80 A longer lifetime (>1 ms) allows sufficient time for populating the T 1 state and transferring energy to the Ln III ions. On the other hand, a shorter lifetime (in the order of microseconds) indicates a weak population of this level. ...

... Over the past quarter-century, rare earths and their compounds have become essential components for advanced materials and technologies, covering electronics, optics, lasers, solar energy conversion [1][2][3][4][5][6][7][8][9][10][11][12], medicine, and more [13][14][15]. Due to their special properties, several materials need simple doping of rare earths at low concentrations. ...

... However, with a red emitter, these LEDs could be improved because the red emission can increase the quality of the white emission [5,6]. In addition, the red-emitting materials could be used in various technological applications, such as plant growth [7], field emission displays (FED) [8], optical markers [9], and even as optical media for lasers [10]. ...

... The phosphine oxide ligands have proven to be efficient sensitizers of the Ln 3+ luminescence with high quantum yields and long luminescence lifetimes. 21,22 Moreover, the ability to incorporate a wide variety of groups into the structures of phosphine oxides gives enormous scope to the tuning of the properties of the resulting complexes. Nevertheless, the reported examples of f-d heterometallic complexes based on phosphine oxide ligands are currently limited to the luminescent Eu(III)-Zn(II) coordination polymer based on 4-pyridyldiphenylphosphine oxide, the crystal structure of which has not been determined. ...

... Various approaches has been used to prepare PCs, such as soft-crystal polymerization of lanthanide complexes [7], sub-cellular resolution [8], and mechanical drilling [9]. These micro-fabricated approaches will get PCs with accurate structures, however, they are complex and will consume a lot of time. ...

... Membrane-Type Surface Stress sensors (MSS) display greater efficiency in sensing molecules in the gaseous phase and trace quantities [96]. Moreover, they are far more sensitive than the traditionally used piezoresistive cantilever sensors [107]. Several nanomechanical sensor systems with various ligands and functional groups have been attempted for the selective sensing of alcohols [108,109]. ...

... Therefore, we believe that it is very necessary to study them in terms of thermal analysis. Since the stability of the complexes is often closely related to the central metal ions and ligands, as well as isomerization and spatial effects, the stability of the complexes can be investigated by thermogravimetric and infrared techniques [7,8]. The obtained thermal analysis data can help us to clarify the reaction mechanism, so as to understand the nature of the ligand and the effect of the change in the complex structure on the material properties, which may guide the synthesis of some special complexes based on certain thermal decomposition mechanisms [9,10]. ...

... These polymers are fascinating because they combine the characteristics of coordination complexes with the advantages of extended networks, such as crystallinity and tunable porosity. They have gained significant attention in materials science and catalysis due to their unique properties and potential applications [1][2][3][4][5][6]. The formation of heteronuclear coordination polymers typically involves the coordination of metal ions with polydentate ligands that can simultaneously bind to multiple metal centers, bridging them together. ...

... Self-assembly (1) methodology of synthesis can be a robust (1) tool (2) for the preparation (3) of complex supramolecular (3)(4) architectures with fascinating properties. Self-assembly permits greater control (1) in creating two and threedimensional structures on account of predicting the way metal-ligand coordination sphere (5) and ligand liability direct the reactions (6) to the desired products (7). ...