Laser-induced graphene fibers

Luong, Duy Xuan; Peng, Zhiwei; Li, Yilun; Zhang, Jibo; Ji, Yongsung; Tour, James M.

doi:10.1016/j.carbon.2017.10.036

Cited by 322 publications

(314 citation statements)

References 42 publications

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“…The gaps distance between neighboring finger electrodes was set to 0.5 mm. [12] To focus on the more exquisite structures, the FE-SEM image of the higher magnification was exhibited in Figure 2b. The process of laser direct writing on polyimide sheets is convenient, scalable and fully compatible with the roll-to-roll fashion of modern electronic industry using this Nd:YAG semiconductor laser for the low maintaining, operation costs and long working life.…”

Section: Resultsmentioning

confidence: 99%

Direct Semiconductor Laser Writing of Few‐Layer Graphene Polyhedra Networks for Flexible Solid‐State Supercapacitor

Liu

Liang

et al. 2018

Adv Elect Materials

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Section: Resultsmentioning

confidence: 99%

Direct Semiconductor Laser Writing of Few‐Layer Graphene Polyhedra Networks for Flexible Solid‐State Supercapacitor

Liu

Liang

et al. 2018

Adv Elect Materials

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“…[26] Laser manufacturing has become increasingly popular in material fabrication due to its high throughput and patterning capability. Recently, it was demonstrated that a commercial CO 2 infrared laser scriber [26][27][28][29][30][31][32][33][34][35][36][37][38] can be used to in situ form and pattern 3D porous graphene on polyimide (PI), cloth, paper, and food under ambient conditions. In comparison to the laser-reduced graphene method, which uses a laser to reduce graphene oxide (GO) films to graphene, the new laser-induced graphene (LIG) method avoids the use of GO precursors and directly exploits the substrate materials as a carbon source, which greatly simplifies the fabrication process and reduces the cost.…”

mentioning

confidence: 99%

UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application

et al. 2019

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In the past decade, graphene has shown great value in both fundamental sciences and practical applications. In spite of the intense research efforts on achieving chemical‐free, low‐temperature processing of high‐quality graphene, cost‐effective synthetic methods to directly fabricate graphene sheets on a substrate are still lacking. Laser‐induced graphene (LIG) is a recently developed method to directly form graphene from carbon‐rich materials. In this work, combined are theoretical and experimental approaches to systematically investigate the light‐material interactions in LIG fabrication processes. First, developed is a molecular dynamics model to disclose the transient formation process of LIG and identified are the critical parameters that govern this process. Following the theoretical prediction, developed is a system to utilize a picosecond UV laser to directly fabricate graphene from polyimide films at room temperature and under atmospheric pressure. After investigating the effects of the laser processing parameters on the LIG quality and subsequent processing optimization, it is experimentally demonstrated that picosecond UV laser processing can be used to prepare high‐quality LIG. With the newly developed LIG, fabricated is a high‐sensitive proximity sensor.

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“…LIG is a versatile technique that has been used to produce graphene films that are superhydrophobic, 22 doped with metal oxide nanocrystals, 20 functionalized with polymer, 21 or developed into vertically-aligned graphene fibers. 23 Typically, a rapid pulse (femtosecond), infrared laser is used to selectively transform distinct regions or patterns of polyimide film (Kapton tape) into sp 2 hybridized carbon, viz., porous graphene. [24][25][26] This laser processing technique can be performed in air at room temperature without the need for prior patterning of the substrate with a metal catalyst or the need for chemical etching/cleaning techniques associated with CVD graphene fabrication.…”

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confidence: 99%

Flexible Laser-Induced Graphene for Nitrogen Sensing in Soil

Garland¹,

McLamore

Cavallaro

et al. 2018

ACS Appl. Mater. Interfaces

129

107

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Flexible graphene electronics are rapidly gaining interest, but their widespread implementation has been impeded by challenges with ink preparation, ink printing, and post-print annealing processes. Laser-induced graphene (LIG) promises a facile alternative by creating flexible graphene electronics on polyimide substrates through a one-step laser writing fabrication method. Herein we demonstrate the use of LIG, created through a low-cost UV laser, for electrochemical ion selective sensing of plant-available nitrogen (i.e., both ammonium and nitrate ions: NH4+ and NO3-) in soil samples. The laser used to create the LIG was operated at distinct pulse rates (10, 20, 30, 40, and 50 ms) in order to maximize the LIG electrochemical reactivity. Results illustrated that a laser pulse rate of 20 ms led to a high percentage of sp2 carbon (77%) and optimal peak oxidation current of 120 uA during ferricyanide cyclic voltammetry. Therefore, LIG electrodes created with a 20 ms pulse rate were consequently functionalized with distinct ionophores specific to NH4+(nonactin) or NO3-(tridodecylmethylammonium nitrate) within polyvinyl chloride (PVC)-based membranes to create distinct solid contact ion selective electrodes (SC-ISEs) for NH4+ and NO3-ion sensing respectively. The LIG SC-ISEs displayed near Nernstian sensitivities of 51.7 ± 7.8 mV/decade (NH4+) and -54.8 ± 2.5 mV/ decade (NO3-), detection limits of 28.2 ± 25.0 uM (NH4+) and 20.6 ± 14.8 uM (NO3-), low long-term drift of 0.93 mV/hr (NH4+) sensors and -5.3 μV/hr (NO3-) sensors and linear sensing ranges within 10-5-10-1 M for both sensors. Moreover, soil slurry sensing was performed and recovery percentages of 96% and 95% were obtained for added NH4+and NO3-, respectively. These results, combined with a facile fabrication that does not require metallic nanoparticle decoration, make these LIG electrochemical sensors appealing for a wide range of in field or point-of-service applications for soil health management. ABSTRACTFlexible graphene electronics are rapidly gaining interest, but their widespread implementation has been impeded by challenges with ink preparation, ink printing, and postprint annealing processes. Laser-induced graphene (LIG) promises a facile alternative by creating flexible graphene electronics on polyimide substrates through a one-step laser writing fabrication method. Herein we demonstrate the use of LIG, created through a low-cost UV laser, for electrochemical ion selective sensing of plant-available nitrogen (i.e., both ammonium and nitrate ions: NH 4 + and NO 3 -metallic nanoparticle decoration, make these LIG electrochemical sensors appealing for a wide range of in-field or point-of-service applications for soil health management.

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Laser-induced graphene fibers

Cited by 322 publications

References 42 publications

Direct Semiconductor Laser Writing of Few‐Layer Graphene Polyhedra Networks for Flexible Solid‐State Supercapacitor

Direct Semiconductor Laser Writing of Few‐Layer Graphene Polyhedra Networks for Flexible Solid‐State Supercapacitor

UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application

Flexible Laser-Induced Graphene for Nitrogen Sensing in Soil

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