The chain of chirality transfer in tellurium nanocrystals

doi:10.1126/science.abf9645

GSTDTAP > 气候变化

DOI	10.1126/science.abf9645
	The chain of chirality transfer in tellurium nanocrystals
	Assaf Ben-Moshe; Alessandra da Silva; Alexander Müller; Anas Abu-Odeh; Patrick Harrison; Jacob Waelder; Farnaz Niroui; Colin Ophus; Andrew M. Minor; Mark Asta; Wolfgang Theis; Peter Ercius; A. Paul Alivisatos
	2021-05-14
发表期刊	Science
出版年	2021
英文摘要	Crystallization and chirality have been entangled since Pasteur's observations on chiral tartaric acid crystals, yet there is still limited understanding of how chiral compounds form chiral crystal morphologies. For example, although a chiral seed crystal can promote a particular handedness, it is not clear why such seeds do not do so with 100% efficiency. Ben-Moshe et al. examined chiral nanocrystals of tellurium grown from solution using various electron microscopy and diffraction techniques (see the Perspective by Popov). They found that screw dislocation- mediated growth is responsible for chiral polyhedral shape formation, and chiral crystals can thus form even in the presence of achiral ligands. Science , this issue p. [729][1]; see also p. [688][2] Despite persistent and extensive observations of crystals with chiral shapes, the mechanisms underlying their formation are not well understood. Although past studies suggest that chiral shapes can form because of crystallization in the presence of chiral additives, or because of an intrinsic tendency that stems from the crystal structure, there are many cases in which these explanations are not suitable or have not been tested. Here, an investigation of model tellurium nanocrystals provides insights into the chain of chirality transfer between crystal structure and shape. We show that this transfer is mediated by screw dislocations, and shape chirality is not an outcome of the chiral crystal structure or ligands. [1]: /lookup/doi/10.1126/science.abf9645 [2]: /lookup/doi/10.1126/science.abh1213
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/326820
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Assaf Ben-Moshe,Alessandra da Silva,Alexander Müller,et al. The chain of chirality transfer in tellurium nanocrystals[J]. Science,2021.
APA	Assaf Ben-Moshe.,Alessandra da Silva.,Alexander Müller.,Anas Abu-Odeh.,Patrick Harrison.,...&A. Paul Alivisatos.(2021).The chain of chirality transfer in tellurium nanocrystals.Science.
MLA	Assaf Ben-Moshe,et al."The chain of chirality transfer in tellurium nanocrystals".Science (2021).