Surface treatment of polyimide substrates for the transfer and multitransfer of graphene films

Campos, N.; Pérez-Mas, Ana M.; Álvarez, Patricia; Menéndez, Rosa; Gómez, David

doi:10.1016/j.apsusc.2015.04.201

Cited by 15 publications

(6 citation statements)

References 26 publications

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“…The polymeric substrates analysed and chemical agents applied are listed in Table I. The studies showed that the chemical agent EGC-1720 (a fluoro-silane polymer) used for increasing the contact angle by surface coating, decreased the wettability of the PI substrates and supported the establishment of a hydrophobic effect (Tomaszewski et al, 2014;Park et al, 2013;Campos et al, 2015).…”

Section: Circuit Worldmentioning

confidence: 99%

Surface analysis of polymeric substrates used for inkjet printing technology

et al. 2016

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Purpose – This paper aims to find an optimal surface treatment of commonly used polymeric substrates for achieve the high adhesion of printed structures. For this reason, the investigation of substrates surfaces from different perspectives is presented in this paper. Design/methodology/approach – The contact angle measurements as well as the roughness measurements were realised for the analysis of surface properties of investigated substrates. The impact of applied chemical agents for surface treatment onto the wettability is analysed for polyimide, polyethylene terephthalate and polyethylene naphthalene substrates. Findings – The results prove the correlation among wettability, surface energy and work of adhesion with respect to the theoretical background. The surface treatment of polymeric substrates by chemical agents, such as acetone, toluene, ethanol, isopropyl and fluor silane polymer, has a significant impact onto the wettability of substrates which affects the final deposition process of nanoinks. Originality/value – The main benefit of the surfaces’ investigation presented in this paper lays in surface modification by readily available chemical agents for optimising the deposition process nanoinks used in inkjet printing technology.

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Section: Circuit Worldmentioning

confidence: 99%

Surface analysis of polymeric substrates used for inkjet printing technology

et al. 2016

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“…PI film with excellent physical, electrical, and mechanical properties over a wide temperature range (from −269 °C to 400 °C) has opened up new design and application areas to plastic films [ 6 ]. PI film is ideal for insulating circuit boards, high-temperature powder coating, and transformer manufacturing due to the desirable properties of high temperature resistance and good dimensional stability [ 7 , 8 ]. For example, PI film was used as a low-cost, flexible interface between the flip-chip bonded sensors at one end and wires to external electronics at the other end [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Morphology and Mechanical Properties of Polyimide Films: The Effects of UV Irradiation on Microscale Surface

Xing

et al. 2017

Materials

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As an attractive dielectric material, polyimide has been widely used in the field of electronics, aerospace, and automobiles due to its useful mechanical properties and good chemical resistance. UV irradiation was considered to be the main factor related to the damage and failure of polyimide. Here the effects of UV irradiation on the surface morphology and microscale mechanical properties of polyimide films are characterized by atomic force microscopy (AFM). The surface roughness of the UV-irradiated samples developed and the mechanical properties degraded with the radiation dose increased. For comparison, uniaxial tensile test was performed to obtain the macroscale Young’s modulus of polyimide film. The UV-irradiated damaging depth was simulated with finite element method (FEM).

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“…Polyimide (PI) is a polymer that has been widely used in industrial and electrical applications owing to its excellent thermal stability, mechanical strength, chemical resistance, and low dielectric constant. 10,11) Thus, PI finds application in microelectronics 12,13) such as wire insulation, liners, and substrates. Recently, PIs have been used as flexible substrates for graphene films used as sensors.…”

Section: Introductionmentioning

confidence: 99%

Properties of spray-deposited liquid-phase exfoliated graphene films

Sales¹,

Vega²,

Vasquez³

2017

Jpn. J. Appl. Phys.

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In this study, we demonstrate the feasibility of spray-depositing exfoliated graphene on flexible polyimide (PI) and rigid (soda lime glass) substrates for optoelectronic applications. The water contact angles of the substrates increased by 13% (for PI) and 49% (for glass) when the surfaces are pretreated with hexamethyldisiloxane, which significantly improved the adhesion of the films. Raman spectral analyses confirmed a minimum of 15 and a maximum of 23 layers of exfoliated graphene deposited on the substrates. After deposition, the films were exposed to 13.56 MHz radiofrequency plasma containing an admixture of argon and nitrogen gases. Plasma treatment modified the electrical properties with a response analogous to that of a rectifier. A 39% increase in transmittance in the visible region was also observed especially for glass substrates after plasma treatment without a significant change in film electrical conductivity.

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Surface treatment of polyimide substrates for the transfer and multitransfer of graphene films

Cited by 15 publications

References 26 publications

Surface analysis of polymeric substrates used for inkjet printing technology

Surface analysis of polymeric substrates used for inkjet printing technology

Morphology and Mechanical Properties of Polyimide Films: The Effects of UV Irradiation on Microscale Surface

Properties of spray-deposited liquid-phase exfoliated graphene films

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