Semi-transparent graphite films growth on Ni and their double-sided polymer-free transfer.

Deokar, Geetanjali Baliram; Genovese, Alessandro; Surya, Sandeep Goud; Long, Chen; Salama, Khaled N.; Da Costa, Pedro M. F. J.

Semi-transparent graphite films growth on Ni and their double-sided polymer-free transfer.

Files

semi transparent.pdf (3.69 MB)

License

https://creativecommons.org/licenses/by/4.0

Type

Article

Authors

Deokar, Geetanjali Baliram
Genovese, Alessandro
Surya, Sandeep Goud
Long, Chen
Salama, Khaled N.

Da Costa, Pedro M. F. J.

KAUST Department

Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Core Labs, King Abdullah University of Science and Technology, Thuwal 23955‑6900, Saudi Arabia.
Electrical Engineering Program
Electron Microscopy
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Sensors Lab

KAUST Grant Number

(BAS/1/1346-01-01

Online Publication Date

2020-09-07

Print Publication Date

2020-12

Date

2020-09-07

Submitted Date

2020-06-09

Abstract

Nanorange thickness graphite films (NGFs) are robust nanomaterials that can be produced via catalytic chemical vapour deposition but questions remain regarding their facile transfer and how surface topography may affect their application in next-generation devices. Here, we report the growth of NGFs (with an area of 55 cm2 and thickness of ~ 100 nm) on both sides of a polycrystalline Ni foil and their polymer-free transfer (front- and back-side, in areas up to 6 cm2). Due to the catalyst foil topography, the two carbon films differed in physical properties and other characteristics such as surface roughness. We demonstrate that the coarser back-side NGF is well-suited for NO2 sensing, whereas the smoother and more electrically conductive front-side NGF (2000 S/cm, sheet resistance - 50 Ω/sq) could be a viable conducting channel or counter electrode in solar cells (as it transmits 62% of visible light). Overall, the growth and transfer processes described could help realizing NGFs as an alternative carbon material for those technological applications where graphene and micrometer-thick graphite films are not an option.

Citation

Deokar, G., Genovese, A., Surya, S. G., Long, C., Salama, K. N., & Costa, P. M. F. J. (2020). Semi-transparent graphite films growth on Ni and their double-sided polymer-free transfer. Scientific Reports, 10(1). doi:10.1038/s41598-020-71435-7

Acknowledgements

This work was supported by KAUST (BAS/1/1346-01-01). We are grateful to Dr. Elisabeth Lutanie, KAUST, for her contribution in technical english corrections. Illustrations (Fig. 2a and Fig. 6c) were produced by Xavier Pita, scientific illustrator at KAUST. We thank the Core Labs, KAUST, for their continuous technical support and use of their equipment.