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沉淀相形貌和择优界面上的奇异结构 被引量:1
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作者 张文征 《材料与冶金学报》 CAS 北大核心 2015年第1期1-2,共2页
根据择优界面与界面能的奇异性的对应关系,提出界面结构奇异性作为简单的判据,这包括位错结构的奇异性,以及界面松弛成为位错之前匹配点团簇分布的奇异性.基于奇异位错结构的分析和O点阵理论,建立了以可测倒易矢量Δg为参数的表征择优... 根据择优界面与界面能的奇异性的对应关系,提出界面结构奇异性作为简单的判据,这包括位错结构的奇异性,以及界面松弛成为位错之前匹配点团簇分布的奇异性.基于奇异位错结构的分析和O点阵理论,建立了以可测倒易矢量Δg为参数的表征择优界面的普适方法.该方法可应用于解释钛合金,不锈钢,镁合金等材料中沉淀相的形貌. 展开更多
关键词 固态相变 晶体学形貌 沉淀相 择优界面
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Advances in organic micro/nanocrystals with tunable physicochemical properties 被引量:1
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作者 Yingxin Ma Zhi-Zhou Li +3 位作者 Hongtao Lin Shuhai Chen Shuping Zhuo Xue-Dong Wang 《Science China Materials》 SCIE EI CAS CSCD 2022年第3期593-611,共19页
Organic micro/nanocrystals based on small organic molecules have drawn extensive attention due to their potential application in organic field-effect transistors,electrochemical sensors,solar cells,etc.Herein,the rece... Organic micro/nanocrystals based on small organic molecules have drawn extensive attention due to their potential application in organic field-effect transistors,electrochemical sensors,solar cells,etc.Herein,the recent advances for organic micro/nanocrystals from the perspective of molecule aggregation mode,morphology modulation,and optical property modulation are reviewed.The stacking mode and the intermolecular interaction depend on the molecular structure,which eventually determines the morphology of organic micro/nanocrystals.The morphologies of the organic micro/nanocrystals make the aggregates exhibit photon confinement or light-guiding properties as organic miniaturized optoelectronic devices.In this review,we conclude with a summary and put forward our perspective on the current challenges and the future development of morphology and optical tunable direction for the organic micro/nanocrystals. 展开更多
关键词 organic micro/nanostructures organic semiconductor aggregation mode morphology modulation excitedstate process
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