Graphene is on track to deliver on its promises

Reiß, Thomas; Hjelt, K.; Ferrari, Andrea C.

doi:10.1038/s41565-019-0557-0

Cited by 69 publications

(59 citation statements)

References 9 publications

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“…[ 2–4 ] With these motivations, graphene‐based materials (GBM) have been heralded to impact a broad range of technological fields, such as electronics, [ 5 ] optoelectronics, [ 6 ] energy storage, [ 7 ] medicine, [ 8 – 10 ] and environmental safety. [ 3 ] GBMs could replace several well‐established materials in many areas, [ 2,11–14 ] particularly in composites, [ 15 ] energy storage devices, [ 16 ] and flexible electronics. [ 17,18 ] In six years (from 2009 to 2015), GBMs′ production increased from 14 tons to 120 tons, with production reaching 1800 tons at the end of 2020.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Graphene Inks for Touch Screen Sensors

Tkachev

Monteiro

Santos

et al. 2021

Adv Funct Materials

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Graphene‐based materials have attracted significant attention in many technological fields, but scaling up graphene‐based technologies still faces substantial challenges. High‐throughput top‐down methods generally require hazardous, toxic, and high‐boiling‐point solvents. Here, an efficient and inexpensive strategy is proposed to produce graphene dispersions by liquid‐phase exfoliation (LPE) through a combination of shear‐mixing (SM) and tip sonication (TS) techniques, yielding highly concentrated graphene inks compatible with spray coating. The quality of graphene flakes (e.g., lateral size and thickness) and their concentration in the dispersions are compared using different spectroscopic and microscopy techniques. Several approaches (individual SM and TS, and their combination) are tested in three solvents (N‐methyl‐2‐pyrrolidone, dimethylformamide, and cyrene). Interestingly, the combination of SM and TS in cyrene yields high‐quality graphene dispersions, overcoming the environmental issues linked to the other two solvents. Starting from the cyrene dispersion, a graphene‐based ink is prepared to spray‐coat flexible electrodes and assemble a touch screen prototype. The electrodes feature a low sheet resistance (290 Ω □−1) and high optical transmittance (78%), which provide the prototype with a high signal‐to‐noise ratio (14 dB) and multi‐touch functionality (up to four simultaneous touches). These results illustrate a potential pathway toward the integration of LPE‐graphene in commercial flexible electronics.

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Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Graphene Inks for Touch Screen Sensors

Tkachev

Monteiro

Santos

et al. 2021

Adv Funct Materials

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“…Many high technology readiness level devices enabled by GRM have been recently demonstrated. 349 Notable examples include IoT sensors for healthcare, miniature energy harvesters integrated on clothes, high data throughput transmitters for 5G era, as well as the worldwide first Solar farm enabled by GRMbased PV panels. ** Consequently, many market's products are expected in the middle term (B5 y) related to energy sector (batteries for e-vehicles, PV, etc.…”

Section: Up-scalability Materialized By In-series Connection Of Multiple Harvestersmentioning

confidence: 99%

Up-scalable emerging energy conversion technologies enabled by 2D materials: from miniature power harvesters towards grid-connected energy systems

Rogdakis

Karakostas

Kymakis

2021

Energy Environ. Sci.

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“…In addition, it is worth noting that supply inconsistency and lack of standards in graphene manufacturing remain a critical factor restricting its industrial advancement [178]. This can be enhanced possibly via development of graphene innovation ecosystem and provision of adequate innovation support [179].…”

Section: Global Graphene Production and Supplymentioning

confidence: 99%