Solid State Electrochemistry II: Devices and Techniques

Maier, Joachim

doi:10.1007/978-0-387-46108-3_1

Cited by 13 publications

(4 citation statements)

References 230 publications

(140 reference statements)

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“…The presence of silica may also enhance ion conductivity and Li-transference number. RHS (righthand side): Similarity between ionomers, such as Nafion and soggy sand electrolytes. , Part b reprinted from ref with kind permission of Springer Science and Business Media. LHS, Bottom: A picture of a “soggy sand electrolyte” based on borate esters.…”

Section: Size Effects On Ion Conduction and Mass Storage: Nanoionicsmentioning

confidence: 99%

Pushing Nanoionics to the Limits: Charge Carrier Chemistry in Extremely Small Systems

Maier

2013

Chem. Mater.

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Size effects in ionic systems are of extraordinary importance for ion transport as well as mass storage. This constitutes the field of nanoionics. Even though the impact of size can be manifold, the interfacial symmetry break and its consequence of carrier redistribution is to the fore. The contribution goes beyond the mesoscopic case, where any contribution of unperturbed bulk defect structure has disappeared, and extrapolates into the regime of atomistic sizes. Even though these extrapolations represent pure thought experiments, much can be learned from them. They refer to the transition of heterolayered systems to layered crystals, of composites to mixed crystals as well as of nanocrystalline state to the amorphous state. Resulting effects on thermodynamics, transport and storage are discussed.

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Section: Size Effects On Ion Conduction and Mass Storage: Nanoionicsmentioning

confidence: 99%

Pushing Nanoionics to the Limits: Charge Carrier Chemistry in Extremely Small Systems

Maier

2013

Chem. Mater.

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“…Qualitatively, the effects of homogeneous and heterogeneous doping can be described by the following rules30:…”

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“…Equation (2) follows from the fact that all charge carriers perceive the same electrical potential30.…”

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High-temperature superconductivity in space-charge regions of lanthanum cuprate induced by two-dimensional doping

et al. 2015

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The exploitation of interface effects turned out to be a powerful tool for generating exciting material properties. Such properties include magnetism, electronic and ionic transport and even superconductivity. Here, instead of using conventional homogeneous doping to enhance the hole concentration in lanthanum cuprate and achieve superconductivity, we replace single LaO planes with SrO dopant planes using atomic-layer-by-layer molecular beam epitaxy (two-dimensional doping). Electron spectroscopy and microscopy, conductivity measurements and zinc tomography reveal such negatively charged interfaces to induce layer-dependent superconductivity (Tc up to 35 K) in the space-charge zone at the side of the planes facing the substrate, where the strontium (Sr) profile is abrupt. Owing to the growth conditions, the other side exhibits instead a Sr redistribution resulting in superconductivity due to conventional doping. The present study represents a successful example of two-dimensional doping of superconducting oxide systems and demonstrates its power in this field.

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“…The value of s which was the frequency exponent, in this investigation, indicated that the conduction process was correlated with barrier hopping (CBH). The charge carriers in this model hopped between localized sites split by barrier heights [30,98]. Conduction was exposed to occur in this situation due to the charge carrier's short-range translational hopping [38].…”

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Probing the impact of Ba on properties of ZnO at the nanoscale: optical, dielectric and antibacterial activity evolution

Kayani,

Farid,

Bashir

et al. 2024

Phys. Scr.

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The sol-gel dip coating technique was used to manufacture undoped and Barium doped zinc oxide thin films. Doping is extensively used to refine semiconductor properties. Without and with varying ratios of Ba 1-9 wt.% dopant, ZnO thin films have been manufactured. The effect of Ba on the dielectric, structural, antibacterial, optical and morphological characteristics of ZnO was investigated. The optical properties demonstrate that the bandgap of the pure ZnO thin film is higher than that of Ba-doped ZnO films, which is beneficial for improving solar cell performance. According to the XRD data, all films of ZnO have hexagonal wurtzite structures According to XRD structural analysis; the incorporation of Ba lowers the crystallinity of ZnO thin films by reducing the crystallite size. The Ba doping changes the surface roughness and morphology. The hopping process defines the dielectric characteristics that follow Koop’s theory as well as the Maxwell-Wagner model. A lower dielectric constant makes it ideal for high-frequency devices. These films exhibit ferromagnetism. Barium-doped zinc oxide photocatalyst could successfully decompose methylene blue dye by making it suitable for wastewater treatment.Ba doping effectively kills both gram-negative and gram-positive bacteria. They have antimicrobial applications in the food industry and biomedicine.

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Solid State Electrochemistry II: Devices and Techniques

Cited by 13 publications

References 230 publications

Pushing Nanoionics to the Limits: Charge Carrier Chemistry in Extremely Small Systems

Pushing Nanoionics to the Limits: Charge Carrier Chemistry in Extremely Small Systems

High-temperature superconductivity in space-charge regions of lanthanum cuprate induced by two-dimensional doping

Probing the impact of Ba on properties of ZnO at the nanoscale: optical, dielectric and antibacterial activity evolution

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