Laser-Induced Graphene Formation on Polyimide Using UV to Mid-Infrared Laser Radiation

Our study presents laser-assisted methods to produce conductive graphene layers on the polymer surface. Specimens were treated using two different lasers at ambient and nitrogen atmospheres. A solid-state picosecond laser generating 355 nm, 532 nm, or 1064 nm wavelengths and a CO2 laser generating m...

Full description

Saved in:
Bibliographic Details
Published inPolymers Vol. 15; no. 21; p. 4229
Main Authors Fiodorov, Vitalij, Trusovas, Romualdas, Mockus, Zenius, Ratautas, Karolis, Račiukaitis, Gediminas
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2023
Subjects
Analysis
Carbon dioxide
Carbon dioxide lasers
Chemical bonds
Copper
deposition
Electrical resistivity
galvanic plating
Gases
Graphene
Graphite
Infrared lasers
Infrared radiation
laser-induced graphene
Lasers
Methods
Nitrogen
polyimide
Polyimide resins
Polymers
Production methods
Radiation
Raman spectroscopy
selective
Sensors
Spectrum analysis
Thickness
Lithuania
United Kingdom > UK
United States > US
Japan
Online AccessGet full text

Cover

More Information
Summary:Our study presents laser-assisted methods to produce conductive graphene layers on the polymer surface. Specimens were treated using two different lasers at ambient and nitrogen atmospheres. A solid-state picosecond laser generating 355 nm, 532 nm, or 1064 nm wavelengths and a CO2 laser generating mid-infrared 10.6 µm wavelength radiation operating in a pulsed regime were used in experiments. Sheet resistance measurements and microscopic analysis of treated sample surfaces were made. The chemical structure of laser-treated surfaces was investigated using Raman spectroscopy, and it showed the formation of high-quality few-layer graphene structures on the PI surface. The intensity ratios I(2D)/I(G) and I(D)/I(G) of samples treated with 1064 nm wavelength in nitrogen atmosphere were 0.81 and 0.46, respectively. After laser treatment, a conductive laser-induced graphene layer with a sheet resistance as low as 5 Ω was formed. Further, copper layers with a thickness of 3–10 µm were deposited on laser-formed graphene using a galvanic plating. The techniques of forming a conductive graphene layer on a polymer surface have a great perspective in many fields, especially in advanced electronic applications to fabricate copper tracks on 3D materials.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15214229