Laser-induced porous graphene gas sensing platform toward the electronic nose

Ning Yi; Huanyu Cheng

doi:10.1117/12.2559154

23 April 2020 Laser-induced porous graphene gas sensing platform toward the electronic nose

Ning Yi, Huanyu Cheng

Proceedings Volume 11389, Micro- and Nanotechnology Sensors, Systems, and Applications XII; 113891E (2020) https://doi.org/10.1117/12.2559154
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

Measurements from the gas-sensitive nanomaterials typically involve the use of interdigitated electrodes. A separate heater is often integrated for fast recovery. However, their use increases fabrication complexity. Here, a novel gas sensing platform based on a highly porous laser-induced graphene (LIG) pattern is reported. The LIG gas sensing platform consists of a sensing region and a serpentine interconnect region. A thin film of metal coated in the serpentine interconnect region significantly reduces its resistance, thereby providing localized healing in the sensing region. Dispersing nanomaterials with different selectivity results in an array to potentially deconvolute various components in the mixture. Systematic investigations of various nanomaterials demonstrate the feasibility of the LIG gas sensing platform. Taken together with the stretchable design in the serpentine interconnects, the demonstrated system could open new opportunities in bio-integrated electronics.

Conference Presentation

Citation Download Citation

Ning Yi and Huanyu Cheng "Laser-induced porous graphene gas sensing platform toward the electronic nose", Proc. SPIE 11389, Micro- and Nanotechnology Sensors, Systems, and Applications XII, 113891E (23 April 2020); https://doi.org/10.1117/12.2559154

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