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Inkjet droplet deposition dynamics into square microcavities for OLEDs manufacturing
Zhang L(张磊)1; Ku T(库涛)1; Cheng XD(程晓鼎)1,2; Song Y(宋岩); Zhang DY(张丁一)1
Department数字工厂研究室
Source PublicationMicrofluidics and Nanofluidics
ISSN1613-4982
2018
Volume22Issue:4Pages:1-15
Indexed BySCI ; EI
EI Accession number20181505002659
WOS IDWOS:000430573300013
Contribution Rank1
Funding OrganizationNational Key Research and Development Program of China
KeywordMicrocavity Inkjet OLEDs Lattice Boltzmann method Multi-relaxation-time Density ratios
AbstractThe dynamics of inkjet deposition in square microcavities are investigated utilizing a three-dimensional multi-relaxation-time pseudopotential lattice Boltzmann (LB) model with large density ratios. A geometric scheme is considered within the pseudopotential LBM framework to obtain the desired contact angles. The effects of wettability, density ratios, droplet viscosity and impact velocity are explored to reveal the droplet–microcavity interactions. With the contact angles of microcavity increasing, the physical outcomes including the crown-like shape with a small round dot, circular hollow core, uniform film and convex film are identified and analyzed. At a lower density ratio ρr= 11.6, the surrounding denser gas resists the droplet recoiling flow resulting in an increasing hollow core. The appropriate higher droplet viscosity and decreasing impact velocity are preferred which could eliminate the hollow core in the recoiling phase and accelerate the inkjet deposition process straightforward. The revelation of droplet-microcavity dynamics is beneficial for optimizing inkjet deposition process and fabricating uniform OLEDs panels.
Language英语
WOS SubjectNanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Fluids & Plasmas
WOS KeywordLATTICE BOLTZMANN METHOD ; SUPERHYDROPHOBIC SURFACES ; DRY SURFACES ; IMPACT ; TRANSITIONS ; SIMULATIONS ; STABILITY ; FLOWS
WOS Research AreaScience & Technology - Other Topics ; Instruments & Instrumentation ; Physics
Funding ProjectNational Key Research and Development Program of China[2017YFB0306401]
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Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21859
Collection数字工厂研究室
Corresponding AuthorZhang L(张磊)
Affiliation1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China;;
2.University of Chinese Academy of Sciences, Beijing 100049, China; Liaoning University, Shenyang 110036, China
Recommended Citation
GB/T 7714
Zhang L,Ku T,Cheng XD,et al. Inkjet droplet deposition dynamics into square microcavities for OLEDs manufacturing[J]. Microfluidics and Nanofluidics,2018,22(4):1-15.
APA Zhang L,Ku T,Cheng XD,Song Y,&Zhang DY.(2018).Inkjet droplet deposition dynamics into square microcavities for OLEDs manufacturing.Microfluidics and Nanofluidics,22(4),1-15.
MLA Zhang L,et al."Inkjet droplet deposition dynamics into square microcavities for OLEDs manufacturing".Microfluidics and Nanofluidics 22.4(2018):1-15.
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