Flexible and robust laser-induced graphene heaters photothermally scribed on bare polyimide substrates

Marco R. Bobinger; Francisco J. Romero; Alfonso Salinas-Castillo; Markus Becherer; Paolo Lugli; Diego P. Morales; Noel Rodríguez; Almudena Rivadeneyra

doi:10.1016/j.carbon.2018.12.010

Flexible and robust laser-induced graphene heaters photothermally scribed on bare polyimide substrates

Marco R. Bobinger, Francisco J. Romero, Alfonso Salinas-Castillo, Markus Becherer, Paolo Lugli, Diego P. Morales, Noel Rodríguez, Almudena Rivadeneyra

Computation, Information and Technology

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

164 Scopus citations

Abstract

We demonstrate the feasibility of fabricating cost-effective and robust laser-induced graphene (LIG) flexible heaters with an innovative technique based on the photothermal production of graphene with a foam-like morphology. The produced devices are precisely defined on a bare polyimide substrate without the need of photomasks by employing a computer numerical control (CNC) driven laser diode. The electrical properties of the LIG-based heaters can be tailored by adjusting the laser power. The resulting conductive material exhibits electrical and chemical properties which are similar to the ones for graphene such as a negative temperature coefficient of −0.46 m°C⁻¹ and a maximum operating temperature of around 400 °C. The developed heaters can outperform the existing emerging technologies showing a very rapid and stable response up to 225 °C with the extra features of flexibility, biocompatibility, and environmental friendliness.

Original language	English
Pages (from-to)	116-126
Number of pages	11
Journal	Carbon
Volume	144
DOIs	https://doi.org/10.1016/j.carbon.2018.12.010
State	Published - Apr 2019

Keywords

CNC laser
Flexible
Graphene film heater
Laser ablation
Laser-induced graphene
Micro-hotplate
Polyimide

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10.1016/j.carbon.2018.12.010

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title = "Flexible and robust laser-induced graphene heaters photothermally scribed on bare polyimide substrates",

abstract = "We demonstrate the feasibility of fabricating cost-effective and robust laser-induced graphene (LIG) flexible heaters with an innovative technique based on the photothermal production of graphene with a foam-like morphology. The produced devices are precisely defined on a bare polyimide substrate without the need of photomasks by employing a computer numerical control (CNC) driven laser diode. The electrical properties of the LIG-based heaters can be tailored by adjusting the laser power. The resulting conductive material exhibits electrical and chemical properties which are similar to the ones for graphene such as a negative temperature coefficient of −0.46 m°C−1 and a maximum operating temperature of around 400 °C. The developed heaters can outperform the existing emerging technologies showing a very rapid and stable response up to 225 °C with the extra features of flexibility, biocompatibility, and environmental friendliness.",

keywords = "CNC laser, Flexible, Graphene film heater, Laser ablation, Laser-induced graphene, Micro-hotplate, Polyimide",

author = "Bobinger, {Marco R.} and Romero, {Francisco J.} and Alfonso Salinas-Castillo and Markus Becherer and Paolo Lugli and Morales, {Diego P.} and Noel Rodr{\'i}guez and Almudena Rivadeneyra",

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year = "2019",

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doi = "10.1016/j.carbon.2018.12.010",

language = "English",

volume = "144",

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T1 - Flexible and robust laser-induced graphene heaters photothermally scribed on bare polyimide substrates

AU - Bobinger, Marco R.

AU - Romero, Francisco J.

AU - Salinas-Castillo, Alfonso

AU - Becherer, Markus

AU - Lugli, Paolo

AU - Morales, Diego P.

AU - Rodríguez, Noel

AU - Rivadeneyra, Almudena

PY - 2019/4

Y1 - 2019/4

N2 - We demonstrate the feasibility of fabricating cost-effective and robust laser-induced graphene (LIG) flexible heaters with an innovative technique based on the photothermal production of graphene with a foam-like morphology. The produced devices are precisely defined on a bare polyimide substrate without the need of photomasks by employing a computer numerical control (CNC) driven laser diode. The electrical properties of the LIG-based heaters can be tailored by adjusting the laser power. The resulting conductive material exhibits electrical and chemical properties which are similar to the ones for graphene such as a negative temperature coefficient of −0.46 m°C−1 and a maximum operating temperature of around 400 °C. The developed heaters can outperform the existing emerging technologies showing a very rapid and stable response up to 225 °C with the extra features of flexibility, biocompatibility, and environmental friendliness.

AB - We demonstrate the feasibility of fabricating cost-effective and robust laser-induced graphene (LIG) flexible heaters with an innovative technique based on the photothermal production of graphene with a foam-like morphology. The produced devices are precisely defined on a bare polyimide substrate without the need of photomasks by employing a computer numerical control (CNC) driven laser diode. The electrical properties of the LIG-based heaters can be tailored by adjusting the laser power. The resulting conductive material exhibits electrical and chemical properties which are similar to the ones for graphene such as a negative temperature coefficient of −0.46 m°C−1 and a maximum operating temperature of around 400 °C. The developed heaters can outperform the existing emerging technologies showing a very rapid and stable response up to 225 °C with the extra features of flexibility, biocompatibility, and environmental friendliness.

KW - CNC laser

KW - Flexible

KW - Graphene film heater

KW - Laser ablation

KW - Laser-induced graphene

KW - Micro-hotplate

KW - Polyimide

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DO - 10.1016/j.carbon.2018.12.010

M3 - Article

AN - SCOPUS:85059302988

SN - 0008-6223

VL - 144

SP - 116

EP - 126

JO - Carbon

JF - Carbon

ER -

Flexible and robust laser-induced graphene heaters photothermally scribed on bare polyimide substrates

Abstract

Keywords

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