Oriented attachment of particles: 100 years of investigations of non-classical crystal growth

2014 ◽  
Vol 83 (12) ◽  
pp. 1204-1222 ◽  
Author(s):  
V K Ivanov ◽  
P P Fedorov ◽  
A Ye Baranchikov ◽  
V V Osiko
Keyword(s):  
Crystal Growth ◽  
Oriented Attachment ◽  
Classical Crystal

Wide-area multilayered self-assembly of fluorapatite nanorods vertically oriented on a substrate as a non-classical crystal growth

Nanoscale ◽  
2021 ◽  
Author(s):  
Yuki Hagiwara ◽  
Yuya Oaki ◽  
Hiroaki Imai
Keyword(s):  
Crystal Growth ◽  
Self Assembly ◽  
Functional Materials ◽  
Oriented Attachment ◽  
Wide Area ◽  
Fundamental Process ◽  
Classical Crystal

Oriented attachment of homogeneously shaped nanoblocks, such as nanocubes and nanorods, is attracting attention as a fundamental process of non-classical crystal growth to produce specific ordered architectures of functional materials....

scholarly journals A Mechanistic Understanding of Non-Classical Crystal Growth in Hydrothermally Synthesized Sodium Yttrium Fluoride Nanowires

2020 ◽  
Author(s):  
Alex Bard ◽  
Xuezhe Zhou ◽  
Xiaojing Xia ◽  
Guomin Zhu ◽  
Matthew Lim ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Crystal Growth ◽  
Materials Science ◽  
Atom Probe ◽  
Oriented Attachment ◽  
Yttrium Fluoride ◽  
X Ray ◽  
Transmission Electron ◽  
Classical Crystal

Sodium yttrium fluoride (NaYF<sub>4</sub>) is an upconverting material with many potential uses in chemistry, materials science, and biology that can be synthesized hydrothermally in both cubic (α) and hexagonal (β) crystallographic polymorphs. Understanding the mechanisms underlying the phase conversion between the cubic and hexagonal polymorphs is of great interest to help inform future efforts to synthesize atomically-precise quantum materials with well-defined sizes and morphologies. In this work, we use a combination of analytical transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), powder X-ray diffraction (XRD), in situ liquid cell TEM, atom probe tomography (APT), and extended x-ray absorption fine structure (EXAFS) measurements to show evidence suggesting that the hexagonal NaYF<sub>4</sub> nanowires form through a non-classical crystal growth mechanism involving the formation and subsequent oriented attachment of mesocrystals consisting of cubic (α) plase units. EXAFS spectroscopy also suggests that substitutional Yb<sup>3+</sup> point defects within NaYF<sub>4</sub> are distributed evenly throughout the crystal lattice without clustering, and also that they may exhibit selective substitution into one of the two possible trivalent yttrium sites in the unit cell for hydrothermally synthesized NaYF<sub>4</sub>.

scholarly journals A Mechanistic Understanding of Non-Classical Crystal Growth in Hydrothermally Synthesized Sodium Yttrium Fluoride Nanowires

2020 ◽  
Author(s):  
Alex Bard ◽  
Xuezhe Zhou ◽  
Xiaojing Xia ◽  
Guomin Zhu ◽  
Matthew Lim ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Crystal Growth ◽  
Materials Science ◽  
Atom Probe ◽  
Oriented Attachment ◽  
Yttrium Fluoride ◽  
X Ray ◽  
Transmission Electron ◽  
Classical Crystal

Sodium yttrium fluoride (NaYF<sub>4</sub>) is an upconverting material with many potential uses in chemistry, materials science, and biology that can be synthesized hydrothermally in both cubic (α) and hexagonal (β) crystallographic polymorphs. Understanding the mechanisms underlying the phase conversion between the cubic and hexagonal polymorphs is of great interest to help inform future efforts to synthesize atomically-precise quantum materials with well-defined sizes and morphologies. In this work, we use a combination of analytical transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), powder X-ray diffraction (XRD), in situ liquid cell TEM, atom probe tomography (APT), and extended x-ray absorption fine structure (EXAFS) measurements to show evidence suggesting that the hexagonal NaYF<sub>4</sub> nanowires form through a non-classical crystal growth mechanism involving the formation and subsequent oriented attachment of mesocrystals consisting of cubic (α) plase units. EXAFS spectroscopy also suggests that substitutional Yb<sup>3+</sup> point defects within NaYF<sub>4</sub> are distributed evenly throughout the crystal lattice without clustering, and also that they may exhibit selective substitution into one of the two possible trivalent yttrium sites in the unit cell for hydrothermally synthesized NaYF<sub>4</sub>.

Non-classical crystal growth on a hydrophobic substrate: learning from bivalve nacre

CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3100-3105
Author(s):  
Xin Feng ◽  
Ruohe Gao ◽  
Rize Wang ◽  
Gangsheng Zhang
Keyword(s):  
Crystal Growth ◽  
Hydrophobic Substrate ◽  
Classical Crystal

The hydrophobic substrate has an effect on the non-classical crystallization of nacreous aragonite crystals.

Crystal growth by oriented attachment: kinetic models and control factors

CrystEngComm ◽  
2014 ◽  
Vol 16 (8) ◽  
pp. 1419 ◽  
Author(s):  
Xiaogang Xue ◽  
R. Lee Penn ◽  
Edson Roberto Leite ◽  
Feng Huang ◽  
Zhang Lin
Keyword(s):  
Crystal Growth ◽  
Kinetic Models ◽  
Oriented Attachment ◽  
Control Factors ◽  
And Control

(NH4)3FeF6 Mesocrystal Grown by Electric Field-Assisted in-situ Dissolution and Reaction of Anodic Iron Oxides

2022 ◽  
Author(s):  
Hui Li ◽  
Zixue Su
Keyword(s):  
Crystal Growth ◽  
Electric Field ◽  
Iron Oxides ◽  
Growth Process ◽  
Electrical Polarization ◽  
Crystal Growth Process ◽  
Classical Crystal

(NH4)3FeF6 mesocrystalline octahedrons are formed by in-situ dissolution and reaction of anodic iron oxides, followed by a non-classical crystal growth process involving electrical polarization and subsequent alignment of primary (NH4)3FeF6...

scholarly journals A structure-based argument for non-classical crystal growth in natural clay minerals

2018 ◽  
Vol 82 (1) ◽  
pp. 171-180 ◽  
Author(s):  
Emilia García-Romero ◽  
Mercedes Suárez
Keyword(s):  
Crystal Growth ◽  
Clay Minerals ◽  
Oriented Attachment ◽  
Natural Environments ◽  
Sedimentary Environments ◽  
Synthetic Materials ◽  
Transmission Electron ◽  
Attachment Mechanism ◽  
Natural Settings ◽  
Particle Attachment

ABSTRACTEvidence of crystallization by particle attachment in synthetic materials is described in numerous contributions. However, efforts to establish the contribution of the particle attachment mechanism to inorganic crystallization in natural environments have barely begun. Here, we show, for the first time, evidence that confirms oriented particle attachment as a crystal growth mechanism that is relevant in sedimentary environments. In these natural settings, oriented particle attachment operates during the formation of highly anisotropically structured clay minerals, which constitute one of the most extensively distributed groups of minerals in the Earth's crust. High-resolution transmission electron microscopy images show that the clay minerals aggregation process occurs in different manners. Smectites aggregate by semi-oriented attachment, while kaolinite, sepiolite and palygorskite aggregate by oriented attachment.

scholarly journals Ultrathin Metal Hydroxide/Oxide Nanowires: Crystal Growth, Self-Assembly, and Fabrication for Optoelectronic Applications

2021 ◽  
Author(s):  
Gayani Pathiraja ◽  
Hemali Rathnayake
Keyword(s):  
Crystal Growth ◽  
Transition Metal Oxides ◽  
Self Assembly ◽  
Cost Effective ◽  
Point Of View ◽  
Oriented Attachment ◽  
Future Perspective ◽  
Interparticle Interactions ◽  
Optoelectronic Applications ◽  
The Cost

The fundamental understanding of transition metal oxides nanowires’ crystal growth to control their anisotropy is critical for their applications in miniature devices. However, such studies are still in the premature stage. From an industrial point of view, the most exciting and challenging area of devices today is having the balance between the performance and the cost. Accordingly, it is essential to pay attention to the controlled cost-effective and greener synthesis of ultrathin TMOS NWs for industrial optoelectronic applications. This chapter provides a comprehensive summary of fundamental principles on the preperation methods to make dimensionality controlled anisotropic nanowires, their crystal growth studies, and optical and electrical properties. The chapter particularly addresses the governing theories of crystal growth processes and kinetics that controls the anisotropy and dimensions of nanowires. Focusing on the oriented attachment (OA) mechanism, the chapter describes the OA mechanism, nanocrystal’s self-assembly, interparticle interactions, and OA-directed crystal growth to improve the state-of-the art kinetic models. Finally, we provide the future perspective of ultrathin TMOS NWs by addressing their current challenges in optoelectronic applications. It is our understanding that the dimension, and single crystallinity of nanowires are the main contributors for building all functional properties, which arise from quasi-1-D confinement of nanowire growth.

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