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Fiber-based triboelectric generators for smart textiles using surface-modified electrospun polymer fibres Tommaso Busolo, Daniel Ura, Sung Kyun Kim, Piotr Szewczyk, Mateusz M. Marzec,Andrzej Bernasik, Urszula Stachewicz, Sohini Kar-Narayan

SLIDE 1

Fiber-based triboelectric generators for smart textiles using surface-modified electrospun polymer fibres

Tommaso Busolo, Daniel Ura, Sung Kyun Kim, Piotr Szewczyk, Mateusz M. Marzec,Andrzej Bernasik, Urszula Stachewicz, Sohini Kar-Narayan 12/11/2019

E-Textile 2019 Conference

SLIDE 2

Y. Zi et al. Triboelectric Nanogenerators, 2016

Triboelectric generator

SLIDE 3

Electrospinning PMMA

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PMMA+ and PMMA- fibers

PMMA+ PMMA-

T. Busolo et al. Nano Energy. 57 (2018) 500–506



SLIDE 5

X-ray photoelectron spectroscopy (XPS)

X-rays Photodetector

PMMA fiber

10° grazing angle Electrons

SLIDE 6

Fibers surface chemistry - XPS

C3 (%) C4 (%) O1 (%) O2 (%) PMMA+ 14.0 15.7 12.1 14.4 PMMA- 9.8 14.6 11.6 14.3

T. Busolo et al. Nano Energy. 57 (2018) 500–506

SLIDE 7

Kelvin Probe Force Microscopy (KPFM)

PMMA fiber PMMA fiber 1st scan – Topography (Tapping AFM) 2nd scan – Surface potential (Lift scan)

SLIDE 8

Surface potential - KPFM

T. Busolo et al. Nano Energy. 57 (2018) 500–506

SLIDE 9

Rubbing KPFM

PMMA fiber PMMA fiber 1st step – Rubbing (Contact AFM) 2nd step – Surface potential (KPFM)

CoCr coated Si tip

SLIDE 10

Charge transfer affinity - Rubbing KPFM

T. Busolo et al. Nano Energy. 57 (2018) 500–506

SLIDE 11

Triboelectric performance

 

PMMA+ PMMA-

T. Busolo et al. Nano Energy. 57 (2018) 500–506



SLIDE 12

Permanent surface modification

PMMA+ PMMA-

T. Busolo et al. Nano Energy. 57 (2018) 500–506

SLIDE 13

Tailoring PMMA on the triboelectric series

PMMA Copper PMMA+ PMMA-

SLIDE 14

Conclusions

The triboelectric performance of electrospun PMMA fibers can be tailored by tuning

the polarity of the applied voltage while electrospinning.

XPS, AFM and KPFM data correlate this result with surface chemistry modification of

PMMA fibers during electrospinning.

5 times higher triboelectric performance is achieved in electrospun PMMA- fibers due to

their surface chemistry modification.

This fabrication method is applicable to other polymers to significantly increase their

triboelectric output.

SLIDE 15

Acknowledgments

Daniel Ura – AGH University of Science and Technology, Krakow Sung Kyun Kim – University of Cambridge Piotr Szewczyk – AGH University of Science and Technology, Krakow Mateusz M. Marzec – AGH University of Science and Technology, Krakow Andrzej Bernasik – AGH University of Science and Technology, Krakow Urszula Stachewicz – AGH University of Science and Technology, Krakow Sohini Kar-Narayan – University of Cambridge