Tailoring Piezoelectricity of 3D Printing PVDF-MoS2 Nanocomposite via In Situ Induced Shear Stress

Rifat Hasan Rupom; Md Nurul Islam; Zoriana Demchuk; Rigoberto Advincula; Narendra B. Dahotre; Yijie Jiang; Wonbong Choi

doi:10.1021/acsanm.4c03695

Tailoring Piezoelectricity of 3D Printing PVDF-MoS₂ Nanocomposite via In Situ Induced Shear Stress

Rifat Hasan Rupom, Md Nurul Islam, Zoriana Demchuk, Rigoberto Advincula, Narendra B. Dahotre, Yijie Jiang, Wonbong Choi

Research output: Contribution to journal › Article › peer-review

Abstract

3D printing of unique structures with tunable properties offers significant advantages in the fabrication of complex and customized electronic devices. This study introduces a process-microstructure-property-guided manufacturing route to fabricate PVDF-2D MoS₂ piezoelectric nanocomposites with tunable piezoelectric properties without having a postprocess. We control PVDF’s microstructure through direct ink writing (DIW) 3D printing while tuning PVDF-MoS₂ interfacial strain by controlling rheology and 3D printing parameters, such as nozzle size and printing speed. Our approach demonstrates tunable piezoelectricity in PVDF-MoS₂, achieving a 15-fold increase in the piezoelectric coefficient (d₃₃) at a printing-induced shear stress of 6685 Pa. This enhancement arises from the electrostatic interactions between PVDF and MoS₂ and the filler distribution and alignment caused by the in situ shear stress in 3D printing, as confirmed by XPS and Raman mapping analyses. Our findings advance the understanding of piezoelectric mechanisms in PVDF-based nanocomposites, laying the foundation for 3D printing of piezoelectric sensors in wearable device applications with enhanced performance and customization capabilities.

Original language	English
Pages (from-to)	22714-22722
Number of pages	9
Journal	ACS Applied Nano Materials
Volume	7
Issue number	19
DOIs	https://doi.org/10.1021/acsanm.4c03695
State	Published - Oct 11 2024

Funding

The authors acknowledge the Vehicle Technologies Office (VTO) within the Department of Energy (DOE) for the funding support through grant number VTO CPS 36928, as well as the Center for Agile & Adaptive Additive Manufacturing (CAAAM) at the University of North Texas (UNT), which was funded by the State of Texas Appropriation via grant number 190405-105-805008-220. The authors would also like to acknowledge the ORNL\u2019s Center for Nanophase Materials and Sciences, a US Department of Energy Office of Science User Facility to support our project. M.N.I. and Y.J. acknowledge the support of the Vice President for Research and Partnerships of the University of Oklahoma and the Data Institute for Societal Challenges. The authors also acknowledge Pashupati Adhikari for his assistance in collecting SEM images.

Funders	Funder number
University of Oklahoma
Data Institute for Societal Challenges
University of North Texas
U.S. Department of Energy	VTO CPS 36928
U.S. Department of Energy
State of Texas Appropriation	190405-105-805008-220

Keywords

2D MoS
3D printing-induced shear stress
PVDF
interfacial interaction
mechanical poling
nanocomposites
numerical simulation
tailorable piezoelectricity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsanm.4c03695

Cite this

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title = "Tailoring Piezoelectricity of 3D Printing PVDF-MoS2 Nanocomposite via In Situ Induced Shear Stress",

abstract = "3D printing of unique structures with tunable properties offers significant advantages in the fabrication of complex and customized electronic devices. This study introduces a process-microstructure-property-guided manufacturing route to fabricate PVDF-2D MoS2 piezoelectric nanocomposites with tunable piezoelectric properties without having a postprocess. We control PVDF{\textquoteright}s microstructure through direct ink writing (DIW) 3D printing while tuning PVDF-MoS2 interfacial strain by controlling rheology and 3D printing parameters, such as nozzle size and printing speed. Our approach demonstrates tunable piezoelectricity in PVDF-MoS2, achieving a 15-fold increase in the piezoelectric coefficient (d33) at a printing-induced shear stress of 6685 Pa. This enhancement arises from the electrostatic interactions between PVDF and MoS2 and the filler distribution and alignment caused by the in situ shear stress in 3D printing, as confirmed by XPS and Raman mapping analyses. Our findings advance the understanding of piezoelectric mechanisms in PVDF-based nanocomposites, laying the foundation for 3D printing of piezoelectric sensors in wearable device applications with enhanced performance and customization capabilities.",

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