Growth of ZnO Films with Controlled Morphology by Aqueous Solution Method

Liu, Xiaoxin; Jin, Zhengguo; Bu, Shaojing; Zhao, Juan; Liu, Zhifeng

doi:10.1111/j.1551-2916.2005.00881.x

Cited by 41 publications

(30 citation statements)

References 35 publications

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“…For many elements there is a suitable radiotracer that is available, the notable exceptions being oxygen and lithium, given the current interest in oxides and lithium ion conductors. However, 18 O is readily available and has been widely used in SIMS experiments [214]. Clearly, all or part of the sample is destroyed by the sectioning, and this is a disadvantage of the method.…”

Section: Tracer Diffusionmentioning

confidence: 99%

“…Radiolabel tracer measurements using 18 O and SIMS analysis have been reported for a number of nanocrystalline zirconia samples [238,275,276]. The first measurements were for pure monoclinic zirconia samples, the nanocrystalline powders being prepared by direct current (DC) sputtering zirconium, oxidizing, and compressing into pellets with a relative mass density of 95-97% and a particle sizes of 80 or 300 nm.…”

Section: Zirconiamentioning

confidence: 99%

“…It has been pointed out that, when comparing diffusion and conductivity data via the Nernst-Einstein equation, the same samples must be used for both experiments [276]. The most recent 18 O diffusion measurements have been for cubic 8 mol% Y 2 O 3 -stabilized ZrO 2 samples consolidated by spark plasma sintering [277]. The relative mass density was >99.9% and the grain size $50 nm.…”

Section: Zirconiamentioning

confidence: 99%

“…It would also be useful to extend the measurements to smaller grain sizes, if possible to those <10 nm. To date, surprisingly few NMR diffusion studies have been conducted with nanocrystalline oxides, although 18 O studies of bulk oxides have proved fruitful in the case of coarse-grained samples [300][301][302]. The advantages of this technique, as outlined elsewhere [169], is that the measurements are less sample-dependent and if there are two separate mechanisms of transport -that is, along the boundaries and in the bulk crystallite -then these should be observable as different resonance lines or relaxation times.…”

Section: Overview and Areas For Future Developmentmentioning

confidence: 99%

“…been developed for ionic and semi-ionic systems (e.g., nanowires [18], nanobelts [19], nanotubes [20], etc., and a range of nanocomposites), attention will be restricted to simple nanocrystals. This overview will first provide a survey of the models proposed to explain the reported unusual transport in nanoionic systems, after which the potential applications of the materials, notably in sensors, batteries, and fuel cells, are described, together with details of their preparation and characterization.…”

Section: Introduction J81mentioning

confidence: 99%

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Ion‐Conducting Nanocrystals: Theory, Methods, and Applications

Chadwick

Savin

2009

Solid State Electrochemistry I

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The aim of this chapter is to review the current state of knowledge in ionic materials with crystallite dimensions less than 100 nm, systems which sometimes are referred to as nanoionics. The chapter will detail the preparation, characterization and the important applications of these materials, especially in sensors, solid-state batteries, and fuel cells. Particular focus will be placed on ionic transport in these materials, as this is a topic of considerable contemporary interest, and where conflicting reports exist of enhanced diffusion in nanocrystals. IntroductionNanomaterials are systems that contain particles with one dimension in the nanometer regime. The past decade has witnessed a growing intense interest from biologists, chemists, physicists, and engineers in the application of these materialsthe so-called nanotechnology, which is sometimes referred to as the next industrial revolution [1]. The reasons for such interest are the unusual properties and potential technological applications that are exhibited by these materials when compared to their bulk counterparts [2][3][4][5][6][7][8][9][10]. In this chapter, attention will be focused on rather simple ionic solids, where the interatomic attractions are predominantly coulombic forces, and the dimensions are predominantly <100 nm. Such systems have been termed nanoionics [11,12].There are three dominant reasons for the study of these particular systems:. The simplicity of the interatomic forces means that some of the generic features and problems of nanomaterials should be tractable to theoretical and/or computer modeling approaches for these particular systems. . Many relatively simple ionic compounds, such as binary halides and oxides, in their bulk form have important technological applications as electrolytes, catalysts, Solid State Electrochemistry I: Fundamentals, Materials and their Applications. Edited by Vladislav V. Kharton

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Section: Tracer Diffusionmentioning

confidence: 99%