Electrical characteristics of double stacked Ppy-PVA supercapacitor for powering biomedical MEMS devices

Abidin, Hafzaliza Erny Zainal; Hamzah, Azrul Azlan; Majlis, Burhanuddin Yeop; Yunas, Jumril; Hamid, Norihan Abdul; Abidin, Ummikalsom

doi:10.1016/j.mee.2013.03.057

Cited by 22 publications

(4 citation statements)

References 9 publications

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“…This nanolayer Cu was sufficient to act as metal catalyst for graphene growth. This method was referred from previous work where the researchers used Nickel as metal catalyst for graphene growth [25]. The application of copper should allow better control of the number of layers due to the low solubility of carbon [26], [27].…”

Section: Synthesis Of Graphenementioning

confidence: 99%

Direct Growth Graphene Via Atmospheric Pressure Chemical Vapour Deposition

Anis Amirah Alim,

Roharsyafinaz Roslan,

Sharipah Nadzirah

et al. 2024

IJNeaM

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The integration of graphene in field-effect transistor (FET) has aroused tremendous attention in the field of sensor technology, particularly for electronic biosensors. However, transferring graphene from metal substrates has destructive effects on the electrical characteristics of the graphene film, leading to severe impurities and defects. Here, we investigated a new approach of technique to synthesis direct- growth semiconducting graphene via atmospheric pressure chemical vapour deposition (APCVD) method. In this study we observe the effects of different reaction times, carbon concentrations and temperatures on the carbon arrangement in graphene. The synthesised graphene was characterised by Raman spectroscopy and field emission scanning electron microscopy (FESEM) to observe the quality of graphene formation. From the Raman analysis, the I2D/IG ratio < 1 indicates the formation of graphene in multiple layers. The ID /IG ratio < 1 was also observed, indicating that the graphene has less disorder of defects. Based on the electrical measurement of the material at estimated distance of 250 μm, a higher I2D/IG ratio leads to a higher resistance. Full width at half maximum (FWHM) of 2D band shows graphene with the highest I2D/IG ratio has the lowest value of FWHM. As the conclusion, these directly grown semiconducting graphene layers can be efficiently integrated into biosensors without any complex post-treatment process.

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Section: Synthesis Of Graphenementioning

confidence: 99%

Direct Growth Graphene Via Atmospheric Pressure Chemical Vapour Deposition

Anis Amirah Alim,

Roharsyafinaz Roslan,

Sharipah Nadzirah

et al. 2024

IJNeaM

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show abstract

“…Superkapasitor MEMS khususnya dengan reka bentuk elektrod antara digit (IDE), telah menarik minat pada masa kini dalam bidang seperti bioMEMS, bioperubatan implan, peranti kuasa elektronik dan aplikasi berkuasa tinggi disebabkan kapasiti pengecasannya yang tinggi (Marsi et al 2015;Zainal Abidin et al 2013). MEMS berasaskan sensor, penggerak dan peranti elektronik mula bertapak dalam industri elektronik pada hari ini kerana kebolehpercayaan, keteguhan dan kemampuan untuk mencipta peranti dengan fungsi yang lebih luas (Hamzah et al 2004;Marsi et al 2012).…”

Section: Pengenalanunclassified

Pencirian Pertumbuhan Lapisan Nano Grafin di atas Elektrod antara Digit Superkapasitor MEMS

Abidin

Hamzah

Majlis

2017

JSM

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“…Miniaturized electrochemical capacitor or micro supercapacitor can be used as an energy storage cell to power small electronic devices [1]. Nowadays, the development of miniaturized electronic devices uses Microelectromechanical Systems (MEMS) such as micropump, microvalve, micronozzle and pressure sensor which combined mechanical, electrical, chemical, optical and fluids engineering fields [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Planar Interdigital Micro Supercapacitor with PECVD Graphene as Electrodes at Low Temperature

Abidin

Hamzah

Mohamed

et al. 2017

MSF

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Graphene has recently gained much interest in applications such as energy storage, catalysis and gas sensing. In terms of energy storage, micro supercapacitor has attracted a lot of interest in fields such as bioMEMS, biomedical implants such as cardiac pacemaker and the promising field of powering small electronic devices. In this paper, the structure of the micro supercapacitor PECVD graphene on electrodes consists of SiO2 substrate, graphene on Nickel (Ni) electrodes, with Polypyrrole (Ppy), graphene and Polyvinyl Alcohol (PVA) layers. To improve performance, graphene is one of the more promising material being investigated for micro supercapacitor electrodes due to several advantages such as high specific surface area and high electron mobility. Graphene was then grown on the Ni electrodes using the Plasma- Enhanced Chemical Vapor Deposition (PECVD) process. The graphene growth structure on the interdigital electrodes of micro supercapacitor was characterized by Raman Spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-Ray (EDX) and Atomic Force Microscopy (AFM). A Raman spectrum of graphene growth on interdigital electrode has identified three peaks which are the D band, G band and 2D band. The broad peaks at 1340 cm-1 and 1580 cm-1 correspond to the D and G bands, respectively.

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Electrical characteristics of double stacked Ppy-PVA supercapacitor for powering biomedical MEMS devices

Cited by 22 publications

References 9 publications

Direct Growth Graphene Via Atmospheric Pressure Chemical Vapour Deposition

Direct Growth Graphene Via Atmospheric Pressure Chemical Vapour Deposition

Pencirian Pertumbuhan Lapisan Nano Grafin di atas Elektrod antara Digit Superkapasitor MEMS

Characterization of Planar Interdigital Micro Supercapacitor with PECVD Graphene as Electrodes at Low Temperature

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