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Title: Stratification during evaporative assembly of multicomponent nanoparticle films

Multicomponent coatings with layers comprising different functionalities are of interest for a variety of applications, including electronic devices, energy storage, and biomaterials. Rather than creating such a film using multiple deposition steps, we explore a single-step method to create such films by varying the particle Peclet numbers, Pe. Our hypothesis, based on recent theoretical descriptions of the stratification process, is that by varying particle size and evaporation rate such that Pe of large and small particles are above and below unity, we can create stratified films of polymeric and inorganic particles. In this paper, we present AFM on the surface composition of films comprising poly(styrene) nanoparticles (diameter 25–90 nm) and silica nanoparticles (diameter 8–14 nm). Previous studies on films containing both inorganic and polymeric particles correspond to large Pe values (e.g., 120–460), while we utilize Pe ~ 0.3–4, enabling us to test theories that have been developed for different regimes of Pe. We demonstrate evidence of stratification and effect of the Pe ratio, although our results agree only qualitatively with theory. Finally, our results also provide validation of recent theoretical descriptions of the film drying process that predict different regimes for large-on-top and small-on-top stratification.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [5] ;  [2]
  1. Stony Brook Univ., NY (United States). Dept. of Chemistry; Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials
  2. Stony Brook Univ., NY (United States). Dept. of Chemistry
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials; Univ. of Warsaw (Poland). Dept. of Chemistry
  5. Univ. of Cambridge (United Kingdom). Dept. of Chemical Engineering and Biotechnology
Publication Date:
Report Number(s):
BNL-205654-2018-JAAM
Journal ID: ISSN 0021-9797
Grant/Contract Number:
SC0012704; CBET-1335787; CHE-1358959; P200A160163
Type:
Accepted Manuscript
Journal Name:
Journal of Colloid and Interface Science
Additional Journal Information:
Journal Volume: 515; Journal ID: ISSN 0021-9797
Publisher:
Elsevier
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
Sponsoring Org:
USDOE Office of Science (SC); National Science Foundation (NSF); Dept. of Education (ED) (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; film formation; evaporative assembly; multilayer; coating; paint
OSTI Identifier:
1438209

Liu, Xiao, Liu, Weiping, Carr, Amanda J., Santiago Vazquez, Dayalis, Nykypanchuk, Dmytro, Majewski, Pawel W., Routh, Alexander F., and Bhatia, Surita R.. Stratification during evaporative assembly of multicomponent nanoparticle films. United States: N. p., Web. doi:10.1016/j.jcis.2018.01.005.
Liu, Xiao, Liu, Weiping, Carr, Amanda J., Santiago Vazquez, Dayalis, Nykypanchuk, Dmytro, Majewski, Pawel W., Routh, Alexander F., & Bhatia, Surita R.. Stratification during evaporative assembly of multicomponent nanoparticle films. United States. doi:10.1016/j.jcis.2018.01.005.
Liu, Xiao, Liu, Weiping, Carr, Amanda J., Santiago Vazquez, Dayalis, Nykypanchuk, Dmytro, Majewski, Pawel W., Routh, Alexander F., and Bhatia, Surita R.. 2018. "Stratification during evaporative assembly of multicomponent nanoparticle films". United States. doi:10.1016/j.jcis.2018.01.005.
@article{osti_1438209,
title = {Stratification during evaporative assembly of multicomponent nanoparticle films},
author = {Liu, Xiao and Liu, Weiping and Carr, Amanda J. and Santiago Vazquez, Dayalis and Nykypanchuk, Dmytro and Majewski, Pawel W. and Routh, Alexander F. and Bhatia, Surita R.},
abstractNote = {Multicomponent coatings with layers comprising different functionalities are of interest for a variety of applications, including electronic devices, energy storage, and biomaterials. Rather than creating such a film using multiple deposition steps, we explore a single-step method to create such films by varying the particle Peclet numbers, Pe. Our hypothesis, based on recent theoretical descriptions of the stratification process, is that by varying particle size and evaporation rate such that Pe of large and small particles are above and below unity, we can create stratified films of polymeric and inorganic particles. In this paper, we present AFM on the surface composition of films comprising poly(styrene) nanoparticles (diameter 25–90 nm) and silica nanoparticles (diameter 8–14 nm). Previous studies on films containing both inorganic and polymeric particles correspond to large Pe values (e.g., 120–460), while we utilize Pe ~ 0.3–4, enabling us to test theories that have been developed for different regimes of Pe. We demonstrate evidence of stratification and effect of the Pe ratio, although our results agree only qualitatively with theory. Finally, our results also provide validation of recent theoretical descriptions of the film drying process that predict different regimes for large-on-top and small-on-top stratification.},
doi = {10.1016/j.jcis.2018.01.005},
journal = {Journal of Colloid and Interface Science},
number = ,
volume = 515,
place = {United States},
year = {2018},
month = {1}
}