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Real‐Time Probing of Nanowire Assembly Kinetics at the Air–Water Interface by In Situ Synchrotron X‐Ray Scattering
Author(s) -
He Zhen,
Jiang HuiJun,
Wu LongLong,
Liu JianWei,
Wang Geng,
Wang Xiao,
Wang JinLong,
Hou ZhongHuai,
Chen Gang,
Yu ShuHong
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201803552
Subject(s) - synchrotron , nanowire , grazing incidence small angle scattering , kinetics , scattering , materials science , fabrication , nanotechnology , self assembly , monolayer , nanoscopic scale , small angle x ray scattering , chemical physics , optics , chemistry , physics , small angle neutron scattering , neutron scattering , alternative medicine , pathology , quantum mechanics , medicine
Although many assembly strategies have been used to successfully construct well‐aligned nanowire (NW) assemblies, the understanding of their assembly kinetics has remained elusive, which restricts the development of NW‐based device and circuit fabrication. Now a versatile strategy that combines interfacial assembly and synchrotron‐based grazing‐incidence small‐angle X‐ray scattering (GISAXS) is presented to track the assembly evolution of the NWs in real time. During the interface assembly process, the randomly dispersed NWs gradually aggregate to form small ordered NW‐blocks and finally are constructed into well‐defined NW monolayer driven by the conformation entropy. The NW assembly mechanism can be well revealed by the thermodynamic analysis and large‐scale molecular dynamics theoretical evaluation. These findings point to new opportunities for understanding NW assembly kinetics and manipulating NW assembled structures by bottom‐up strategy.