Fabrication of interdigitated micro-supercapacitor devices by direct laser writing onto ultra-thin, flexible and free-standing graphite oxide films

Kumar, Rajesh; Savú, Raluca; Joanni, Ednan; Vaz, Alfredo R.; Canesqui, M. A.; Singh, Rajesh Kumar; Timm, Ronaldo Adriano; Kubota, Lauro T.; Moshkalev, Stanislav A.

doi:10.1039/c6ra17516c

Cited by 83 publications

(30 citation statements)

References 62 publications

(66 reference statements)

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“…Compared to photolithographic processes, direct laser writing of MSCs provides a less‐process intensive fabrication and more versatile route, although limited by its serial writing mode . Some parameters, including laser power and scanning speed, would have influence on the performance of the resulted RGO, e.g., electronic conductivity . In this regard, El‐Kady and Kaner reported planar MSCs by a relatively fast direct laser writing on GO films using a LightScribe DVD burner .…”

Section: Fabrication Of Graphene‐based Planar Interdigitated Mscsmentioning

confidence: 99%

Graphene‐Based Planar Microsupercapacitors: Recent Advances and Future Challenges

Liang

Mondal

Wang

et al. 2018

Adv Materials Technologies

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The continuous development of integrated electronics such as maintenance‐free biosensors, remote and mobile environmental sensors, wearable personal electronics, nanorobotics etc. and their continued miniaturization has led to an increasing demand for miniaturized energy storage units. Microsupercapacitors with graphene electrodes hold great promise as miniaturized, integrated power sources thanks to their fast charge/discharge rates, superior power performance, and long cycling stability. In addition, planar interdigitated electrodes also have the capability to reduce ion diffusion distances leading to a greatly improved electrochemical performance. Either as standalone power sources or complementing energy harvesting units, it is expected that graphene‐based microsupercapacitors will play a key role as miniaturized power sources in electronic microsystems. This review highlights the recent development, challenges, and perspectives in this area, with an emphasis on the link between material and geometry design of planar graphene‐based electrodes and their electrochemical performance and integrability.

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Section: Fabrication Of Graphene‐based Planar Interdigitated Mscsmentioning

confidence: 99%

Graphene‐Based Planar Microsupercapacitors: Recent Advances and Future Challenges

Liang

Mondal

Wang

et al. 2018

Adv Materials Technologies

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“…Laser technology has recently been developed as a very attractive interdigitated electrodes fabrication method for MSCs due to its advantage of flexible, simplified, and template‐free. [ 126–137 ] For example, directly LIG on polymer materials, such as polyimide (PI), [ 138,139 ] polyetherimide (PEI), and phenolic resin (PR). [ 140 ] Under the high energy laser irradiation, the polymer chain appears fracture, gasification, and rearranged to form graphene.…”

Section: Fabrication Methodsmentioning

confidence: 99%

Recent Developments of Planar Micro‐Supercapacitors: Fabrication, Properties, and Applications

Zhang

Zhou

et al. 2020

Adv Funct Materials

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The increasing development of wearable, portable, implantable, and highly integrated electronic devices has led to an increasing demand for miniaturization of energy storage devices. In recent years, supercapacitors, as an energy storage device, have received enormous attention owing to their excellent properties of quick charge and discharge, high power density, and long life cycle with minimal maintenance. Micro-supercapacitors (MSCs) as a promising candidate for miniaturized energy storage components have undergone considerable theoretical and experimental investigations. Particularly, planar MSCs with a 2D architecture design have more attractive application prospects due to their flexible design and excellent electrochemical performance. However, the major drawbacks of MSCs are their intrinsically low energy density. For this reason, researchers have conducted much investigation to improve their energy density in order to promote their practical application. Herein, the recent development and progress of planar MSCs from the scope of the substrates, electrode materials, fabrication methods, electrochemical properties, and applications are discussed. Finally, the currently existing challenges and developments associated with planar MSCs are also discussed. All in all, planar MSCs have great application potential in various fields of electrochemical energy storage, self-powered wireless sensors, and stimuli-responsive and photoresponsive, alternating current line filtering.

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“…It is assumed that thermal reduction starts occurring in a range from 100 °C [26] to 180 °C [27], and it is considered that 200-500 °C is an effective temperature range leading to reduction [28,29] by elimination of carboxyl groups. [30] Higher local temperatures lead to ablation [29]. The use of a scanning focused laser light is a common way to obtain local heating, as GO is a light absorber, absorbing 63% of incident light within 1 µm [31] in average over the visible range, which leads to a rapid decrease of temperature along the depth.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…protons which bind to oxygen-rich functional groups, leading to their removal from the carbon backbone [40]. This phenomenon occurs for photon energies above a threshold of 3.2 eV [30] and up to ~300.0 eV [39], while using higher energy laser lines caused the breaking of carbon-carbon bonds [40]. GO surface patterning was also performed using an extreme-UV (EUV) radiation source showing high efficiency on the reduction process, with very high resolution (nanometre range) and absence of photothermal effects [41].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Reductive nanometric patterning of graphene oxide paper using electron beam lithography

Gonçalves

Borme

Bdkin

et al. 2018

Carbon

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Electron beam lithography (EBL) was used for preparing nanostructured reduced patterns on the GO paper surface, while preserving its mechanical resistance and flexibility. Different EBL parameters, like dose and time of exposure for patterning were tested. SEM analysis showed the consequent increase of contrast of the reduced stripes on the patterned regions due to the increase of electron beam doses. Moreover, surface potential microscopy experiments also exhibited a clear contrast between the patterned and non-patterned regions. Structural analysis of the patterned paper through X-ray diffraction and nanoindentation showed that the interlayer distance between GO sheets decreases after reduction allowing the increase of the Hardness and Young modulus that makes this material able to be manipulated and integrated on different devices. Furthermore, we also observe that exposed areas to electron beam reduction process show an increase in the electrical conductivity up to 3 × 10 4 times. The developed flexible GO films can have interesting applications such as biosensors or templates for inducing tissue regeneration, by providing a surface with differently patterned cues with contrasting electron mobility. Preliminary in vitro studies with L929 fibroblasts support the cytocompatible nature of this patterned GO paper.

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Fabrication of interdigitated micro-supercapacitor devices by direct laser writing onto ultra-thin, flexible and free-standing graphite oxide films

Abstract: In this work we present graphene-based in-plane flexible interdigitated micro-supercapacitor devices fabricated through direct laser writing onto ultra-thin graphite oxide (GO) films.

Cited by 83 publications

References 62 publications

Graphene‐Based Planar Microsupercapacitors: Recent Advances and Future Challenges

Graphene‐Based Planar Microsupercapacitors: Recent Advances and Future Challenges

Recent Developments of Planar Micro‐Supercapacitors: Fabrication, Properties, and Applications

Reductive nanometric patterning of graphene oxide paper using electron beam lithography

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