Laser‐Induced Graphene Composites for Printed, Stretchable, and Wearable Electronics

Tehrani, Farshad; Beltrán‐Gastélum, Mara; Sheth, Karan; Karajić, Aleksandar; Yin, Lu; Kumar, Rajan; Soto, Fernando; Kim, Jayoung; Wang, Joshua; Barton, Shemaiah; Mueller, Michelle T.

doi:10.1002/admt.201900162

Cited by 62 publications

(67 citation statements)

References 69 publications

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“…[ 1–4 ] It has been developed to be the core materials of flexible electronics, such as radio frequency identification device (RFID), flexible circuit, transparent electrode, and especially wearable sensors. [ 5–8 ] The graphene‐based sensors have been researched widely in recent years, including strain sensors, [ 9–15 ] gas sensors, [ 16–18 ] chemical sensors, [ 19–21 ] and biological sensors, [ 22–24 ] etc. Wherein, graphene‐based strain sensor is the most popular with the researchers, owing to its high sensibility to tactile.…”

Section: Introductionmentioning

confidence: 99%

“…Wherein, graphene‐based strain sensor is the most popular with the researchers, owing to its high sensibility to tactile. The graphene textile, [ 9 ] graphene microribbons (GMRs) fabrics, [ 14,15 ] and graphene‐based composites [ 10–12 ] have been explored for strain sensors and obtained high sensitivity (gauge factor, GF of ≈10 6 ) and long‐term stability. Gas molecule and chemical detection is the other research focus of graphene‐based sensor.…”

Section: Introductionmentioning

confidence: 99%

“…The main reason is that the raw materials and the material processing they reported are uniform and homogeneous. The graphene textiles [ 9–15 ] and graphene/graphene oxide powder or suspension [ 16–24 ] are the popular raw materials for sensors. To improve the sensitivity, a large quantity of active sits and defects should be introduced by weaving, [ 15 ] doping, [ 25 ] oxidating, [ 10 ] and mechanical processing.…”

Section: Introductionmentioning

confidence: 99%

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Pattern Directive Sensing Selectivity of Graphene for Wearable Multifunctional Sensors via Femtosecond Laser Fabrication

Yang

et al. 2020

Adv Materials Technologies

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Graphene has great potential in wearable sensors. However, the sensing selectivity of graphene‐based sensors is still a big challenge, limiting their application in the multifunctional sensors. Herein, different types and distributions of defects are introduced into graphene by femtosecond laser patterning to realize sensing selectivity for wearable multifunctional sensors. The imperfect graphene with four pattern arrays, circle, square, triangle, and hexagon with none, right, acute, and obtuse angle, is fabricated by laser to control the types and distributions of defects. The graphene with different patterns shows remarkable sensing selectivity, owing to the dangling bonds and vacancies on the edge of patterns. The graphene‐based sensor with the circle pattern array is used to detect the strain variation; the triangle one is for temperature detection; and the hexagon one can collect the information of gas. The gauge factor is demonstrated to be as high as ≈104. The as‐produced sensor with the above‐mentioned four patterns can simultaneously detect body pulse, temperature, and harmful gas by attaching to human body or clothes, offering real‐time health monitoring and protection. The patterned graphene‐based sensors with high sensing selectivity are expected to develop multifunctional sensor platform and versatile artificial electronic skin.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pattern Directive Sensing Selectivity of Graphene for Wearable Multifunctional Sensors via Femtosecond Laser Fabrication

Yang

et al. 2020

Adv Materials Technologies

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“…A CNT and poly(3,4-ethylene dioxythiophene) polystyrene sulfonate (PEDOT:PSS) hybrid capacitor, offering screen-printability and high flexibility, has been adopted as symmetrical interdigitated electrodes that are connected by flexible silver current collectors (Fig. 4a and S15) 52. Each SC module consists of 5 SC units connected in series to reach the desired 5 V voltage range for directly powering electronics, with each SC unit featuring four interdigitated CNT-PEDOT:PSS electrode segments covered by a solidified, transparent, flexible, sulfuric acidcrosslinked polyvinyl alcohol (PVA) electrolyte (…”

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confidence: 99%

A Self-Sustainable Wearable Multi-Modular E-Textile Bioenergy Microgrid System

Yin

Kim

Lyu

et al. 2020

Preprint

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Despite the fast development of various energy harvesting and storage devices, their judicious integration into efficient, autonomous, and sustainable wearable systems has not been widely explored. Here, we introduce the concept and design principles of e-textile microgrids to the world of wearable electronics by demonstrating the operation of a multi-module bioenergy microgrid system. Unlike earlier hybrid wearable energy systems, the presented e-textile microgrid relies solely on human movements to work synergistically, harvesting biochemical and biomechanical energy using sweat-based biofuel cells and triboelectric generators, and regulating the harvested energy via supercapacitor modules for high-power output. Through careful energy budgeting, the versatile e-textile system offers fast-booting and extended-harvesting to efficiently power liquid crystal displays continuously or a sweat sensor-electrochromic display system in pulsed sessions. Implementing the “compatible form factors, commensurate performance and complementary functionality” design principles, the flexible, textile-based bioenergy microgrid offers attractive prospects for the design and operation of efficient, sustainable, and autonomous wearable systems.

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“…[1][2][3][4][5][6][7][8][9][10] Though, several kinds of renewable energy sources have attracted great attention including, rechargeable batteries, supercapacitors (SCs), and fuel cells. [1][2][3][4][5][6][7][8][9][10] Though, several kinds of renewable energy sources have attracted great attention including, rechargeable batteries, supercapacitors (SCs), and fuel cells.…”

mentioning

confidence: 99%

Selective Growth of Zn–Co–Se Nanostructures on Various Conductive Substrates for Asymmetric Flexible Hybrid Supercapacitor with Enhanced Performance

Chebrolu

Balakrishnan

Chinnadurai

et al. 2019

Adv Materials Technologies

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laptops, rollup displays, and wearable devices. [1][2][3][4][5][6][7][8][9][10] Though, several kinds of renewable energy sources have attracted great attention including, rechargeable batteries, supercapacitors (SCs), and fuel cells. Among them, SCs hold great promise for fast charging, [11] while batteries take hours to recharge. [12] SCs have witnessed broad application prospects such as those in cameras, electric vehicles (EVs), railways, and aerospace due to their superior power density, tiny volume, and lifespan, [13,14] but small specific capacitance and low operating voltage critically fulfill the demands for EVs with high energy density. Therefore, researchers are driving toward in creating new kinds of electrode material with high specific capacity, or the operation potential window (V), and the electrochemical performance in SCs is significantly dependent on the physicochemical properties of electrode materials. [15] Nanostructured transitionmetal oxides [16][17][18][19][20] and conducting polymers are widely exploited as a positive electrode material for SCs because of their unique multiple oxidation states of transition metal ions, reversible faradic reactions, and high specific capacitance properties compared to that of carbonaceous materials (e.g., graphite, activated carbon). [21][22][23] Nevertheless, the power density, low electronic conductivity, and poor cycling stability arising from the metal oxide/polymers limit their wide application for SCs.Recently, battery-type metal selenides, phosphates, and nitrides have been attracted enormous attention, being developed as a new type of electroactive materials in the field of energy storage and conversion systems due to its low electronegativity and rich redox reactions when compared to the corresponding oxides. Indeed, some metal nitrides [24] and sulfides [25] have been reported as new electroactive materials for SCs and often show better performance than oxides. Besides, metal selenides, as an important class of metal chalcogenides, possess high electrical conductivity and widely employed as electrocatalysts, [26][27][28][29] dye-sensitized solar cells (DSSCs), [30,31] and SCs. [32] Recent reports highlight that metal selenides might be effective electrode material for SCs. [32][33][34][35][36][37][38][39][40][41][42] In their reports, the presence of selenium atom greatly enhanced electrochemical active sites. In another point of view, the cation substituted in transition metals Hybrid supercapacitors have received great interest in the field of electric vehicles and wearable electronic devices. However, developing new electrode material with high capacity and supporting substrates with good stability is still a big challenge. Herein, a facile electrodeposition technique is applied to grow Zn-Co-Se on various conductive substrates for hybrid supercapacitor. Among all, NF-supported Zn-Co-Se electrode shows a high specific capacitance of 313.45 C g −1 and good cyclical stability of 95% retention over 3000 cycles. Interestingly, the assembled hybri...

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Laser‐Induced Graphene Composites for Printed, Stretchable, and Wearable Electronics

Cited by 62 publications

References 69 publications

Pattern Directive Sensing Selectivity of Graphene for Wearable Multifunctional Sensors via Femtosecond Laser Fabrication

Pattern Directive Sensing Selectivity of Graphene for Wearable Multifunctional Sensors via Femtosecond Laser Fabrication

A Self-Sustainable Wearable Multi-Modular E-Textile Bioenergy Microgrid System

Selective Growth of Zn–Co–Se Nanostructures on Various Conductive Substrates for Asymmetric Flexible Hybrid Supercapacitor with Enhanced Performance

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