Zigzag Hollow Cracks of Silver Nanoparticle Film Regulated by Its Drying Micro-environment

We first verify the critical impact of evaporation on the formation of zigzag hollow cracks by regulating the drying micro-environment of silver nanoparticle film. Uneven evaporation and component segregation contributes to the flows along the surface and inside of droplets. Asymmetric vapor concent...

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Bibliographic Details
Published in:Nanoscale research letters 2018-11, Vol.13 (1), p.354-5, Article 354
Main Authors: Tao, Ruiqiang, Zhang, Jianhua, Fang, Zhiqiang, Ning, Honglong, Chen, Jianqiu, Yang, Caigui, Zhou, Yicong, Yao, Rihui, Song, Yongsheng, Peng, Junbiao
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Compressive properties
Cracks
Droplets
Drying
Environmental impact
Evaporation
Materials Science
Molecular Medicine
Morphology
Nano Express
Nanochemistry
Nanoparticles
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Optimization
Particles, nanosize
Silver
Skewed distributions
Sol-gel preparation
Solidification
Surface flow
Surfaces
Thin films
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Summary:We first verify the critical impact of evaporation on the formation of zigzag hollow cracks by regulating the drying micro-environment of silver nanoparticle film. Uneven evaporation and component segregation contributes to the flows along the surface and inside of droplets. Asymmetric vapor concentration distribution is capable of weakening the surface flow of droplets, thus suppressing the inner compressive stress of nanoparticles and leading to a surface morphology with less cracks. Although defect-free and surface smooth nanoparticle film deposited by a solution-based method remains a big challenge, our work has referential significance to optimize high-quality nanoparticle film with appropriate deposition and curing processes. Moreover, an optimization possibility through the drying micro-environment should be considered in high-end applications due to its enhanced effect on high-resolution patterns.
ISSN:1931-7573
1556-276X
DOI:10.1186/s11671-018-2777-x