Polyacrylonitrile/N-doped graphene quantum dots nanocomposite activity as SERS nanosensors for detection of methylene blue

Sharma, Saloni; Kumar, Rajesh; Yadav, Ram Manohar

doi:10.1016/j.mtcomm.2023.106860

Cited by 10 publications

(3 citation statements)

References 106 publications

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“…The PL mechanism of GQDs involves the QDs regulated by the number of aromatic rings and surface-related states associated with charge transfer occurring between the sp 2 carbon network and surface states. Factors such as preparation methods, size and shape, doping heteroatoms, and passivation influence the PLQY, emission, stability, and PL lifetime of GQDs [130][131][132].…”

Section: Carbon-based Qdsmentioning

confidence: 99%

Inkjet printing of heavy-metal-free quantum dots-based devices: a review

Fu,

Critchley

2024

Nanotechnology

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Inkjet printing (IJP) has become a versatile, cost-effective technology for fabricating organic and hybrid electronic devices. Heavy-metal-based quantum dots (HM QDs) play a significant role in these inkjet-printed devices due to their excellent optoelectrical properties. Despite their utility, the intrinsic toxicity of HM QDs limits their applications in commercial products. To address this limitation, developing alternative HM-free quantum dots (HMF QDs) that have equivalent optoelectronic properties to HM QD is a promising approach to reduce toxicity and environmental impact. This article comprehensively reviews HMF QD-based devices fabricated using IJP methods. The discussion includes the basics of IJP technology, the formulation of printable HMF QD inks, and solutions to the coffee ring effect (CRE). Additionally, this review briefly explores the performance of typical state-of-the-art HMF QDs and cutting-edge characterization techniques for QD inks and printed QD films. The performance of printed devices based on HMF QDs is discussed and compared with those fabricated by other techniques. In the conclusion, the persisting challenges are identified, and perspectives on potential avenues for further progress in this rapidly developing research field are provided.

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Section: Carbon-based Qdsmentioning

confidence: 99%

Inkjet printing of heavy-metal-free quantum dots-based devices: a review

Fu,

Critchley

2024

Nanotechnology

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“…45 Polyacrylonitrile (PAN) has good mechanical qualities, chemical stability, and processability, which make it suitable for SERS applications as a base material. [46][47][48][49][50][51][52] Using PAN as the composite matrix allows for the immobilisation of metal particles while preserving and even enhancing their strength and SERS performance. In addition, PAN lms have a tendency to be porous due to their structure during deposition.…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Sharma,

Kumar,

Yadav

2024

Nanoscale Adv.

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“…Polymer-based composites have been extensively explored for this purpose. − However, enhancing the low thermal conductivity of polymers necessitates incorporating fillers with high thermal or electrical conductivity, including boron nitride (BN), − aluminum nitride (AlN), − Al 2 O 3 , − graphene oxide (GO), − and carbon nanotubes (CNTs). − Although these fillers improve the thermal or electrical conductivity, achieving both high EMI SE and the electrical insulation required by electronic packing materials remains difficult. To address this problem, we utilized magnetic particle fillers, , specifically Fe 3 O 4 and MgO nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Iron Oxide/Magnesium Oxide/Graphene Oxide/Cellulose Composites with Superior Thermal Conductivity, EMI Shielding, and Electrical Insulation Synthesis Using Polydopamine Linker

Kim,

Jang,

Cho

et al. 2024

ACS Appl. Polym. Mater.

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Rapid advances in electronic devices have accelerated the requirements for effective heat management. Concurrently, the proliferation of wireless communication has intensified concerns related to electromagnetic interference (EMI) shielding. Excessive heat and EMI pose significant threats to the functionality of electronic devices and human health. To mitigate these risks, materials that offer exceptional thermal conductivity and high EMI shielding effectiveness (EMI SE) are required. However, studies on composite materials that provide both electrical insulation and EMI shielding are limited. Herein, we systematically functionalized graphene oxide (GO) sheets with polydopamine (PDG). We also surface-treated iron oxide (IO) and magnesium oxide (MO) nanoparticles with polydopamine. IO and MO nanoparticles were covalently linked to GO sheets with polydopamine (PDG/IO/MO), ensuring even dispersion of IO and MO nanoparticles across the PDG sheets. This unique PDG/IO/MO hybrid filler exhibited strong affinity for integration with a polydopamine-treated cellulose matrix, creating double heat transfer pathways due to the strategic positioning of IO and MO fillers on the PDG sheets. By chemically bonding the fillers and the matrix, the composites' performance was further enhanced. Consequently, the developed cellulose/PDG/IO/MO composites exhibited excellent electrical insulation (exceeding 10 9 Ω•cm), EMI SE (65.29 dB), through-plane thermal conductivity (5.83 W/m•K), and tensile strength (155.49 MPa). We posit that, due to their electrical insulation and EMI shielding properties, these composites hold significant potential for application as electronic packaging materials.

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Polyacrylonitrile/N-doped graphene quantum dots nanocomposite activity as SERS nanosensors for detection of methylene blue

Cited by 10 publications

References 106 publications

Inkjet printing of heavy-metal-free quantum dots-based devices: a review

Inkjet printing of heavy-metal-free quantum dots-based devices: a review

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Iron Oxide/Magnesium Oxide/Graphene Oxide/Cellulose Composites with Superior Thermal Conductivity, EMI Shielding, and Electrical Insulation Synthesis Using Polydopamine Linker

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