Water/n-heptane interface as a viable platform for the self-assembly of ZnO nanospheres to nanorods

Ali, M. Azam; Rahaman, Hasimur; Rahman, Dewan S.; Nath, Surjatapa; Ghosh, Sujit Kumar

doi:10.1039/c4ce00728j

Cited by 5 publications

(3 citation statements)

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“…Transmission electron micrographs during the (panel A) transformation of nanospheres to nanorods with the progress of the reaction and (panel B) closer observation of a single nanorod with increasing magnifications. Adapted with permission from ref . Copyright 2014 Royal Society of Chemistry.…”

Section: Morphological Transformationmentioning

confidence: 99%

“…43 The structural transformation of ZnO nanospheres to nanorods has been carried out by exploiting water/n-heptane interface as a viable and selective platform with unconventional low concentrations of the precursor salt under facile and environmentally benign reaction conditions. 44 Mechanistic investigations through transmission electron microscopic measurements during the formation of the nanorods are presented in Figure 7. Low-resolution transmission electron micrographs (panel A) reveal that aggregated quasi-spherical particles are aligned into pearlchain-like structures and then are epitaxially fused together.…”

Section: Morphological Transformationmentioning

confidence: 99%

“…The polarity of ZnO along the preferred direction also governs the phenomena of crystal growth and defect generation during the formation of nanocrystals . The structural transformation of ZnO nanospheres to nanorods has been carried out by exploiting water/ n -heptane interface as a viable and selective platform with unconventional low concentrations of the precursor salt under facile and environmentally benign reaction conditions . Mechanistic investigations through transmission electron microscopic measurements during the formation of the nanorods are presented in Figure .…”

Section: Morphological Transformationmentioning

confidence: 99%

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Growth of ZnO Polytypes: Multiple Facets of Diverse Applications

Debnath,

Sen,

Neog

et al. 2024

Crystal Growth & Design

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Zinc oxide has been considered as a specific and versatile bridging agent that bears an intrinsic relationship with the crystal structure−property application in physics, chemistry, materials, and biomedical sciences. Due to inherent polytypism through the abundance of crystal structures, the properties can interconnect from classical (bulk structures) to quantum (nanostructures) regimes that have been the subject of immense investigation using theoretical, experimental, and simulation perspectives. Prudent advances in the synthetic strategies have offered the opportunity to achieve diverse morphologies from ultrasmall to hierarchical superstructures employing chemical manipulation, and the possibility of maneuvering the crystal patterns has marked zinc oxide as an attractive recipe in the buffet of modern materials research. The interplay between the mere variation in the crystalline structures and spatial confinement of ZnO at the nanoscale dimension has become the epicenter of the emergence of unique physicochemical characteristics that can be exploited in a diverse range of niche multifarious applications. Moreover, the ease of syntheses which mostly follow green techniques, cost effectiveness, physical and chemical stability, and biocompatibility have made zinc oxide a semiconductor of great interest in the past three decades. An intrinsic n-type semiconductor with a wide band gap and large exciton binding energy have rendered ZnO as a fundamental material with a synergism of semiconducting, optoelectronic, piezoelectric, pyroelectric, photocatalytic, and biological properties with outstanding industrial and technological applications. The possibility to control the crystallinity through the manipulation of particle shape, size, exposed facets, composition, and doping imbues a diverse range of materials properties that can be tailored to pursue the preconceived applications. Althouth the onset of research with ZnO can be traced back to nearly a century ago, the renewed interest has been rekindled with the accessibility of high-quality single crystals, facile synthesis to various nanostructures, and the availability of p-type ZnO as the cornerstone. Based on these contexts at the backstage, it is now time to condense the large and voluminous work to assess the epicenter of the conceptive, to rationalize the perpectives between crystallographic and physical properties, and to design the objectives to explore the future technological applications in the realm of present major global challenges in the field of energy, environment, and biomedical applications.

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Section: Morphological Transformationmentioning

confidence: 99%

Section: Morphological Transformationmentioning

confidence: 99%

Section: Morphological Transformationmentioning

confidence: 99%

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