PEDOT:PSS/MXene/PEG composites with remarkable thermal management performance and excellent HF-band &amp; X-band electromagnetic interference shielding efficiency for electronic packaging

Jin, Xin-zheng; Yang, Zhenyu; Huang, Chenhui; Yang, Jing‐hui; Wang, Yong

doi:10.1016/j.cej.2022.137599

Cited by 53 publications

(21 citation statements)

References 57 publications

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“…To evaluate the EMI shielding properties of the MCIA hybrid films, the S -parameters ( S 11 , S 12 , S 21 , and S 22 ) of the films were measured in the X band (8.2–12.4 GHz) by using a vector network analyzer. The EMI shielding effectiveness (SE) values of the hybrid films were determined using the following expressions: , R = false| S 11 false| 2 T = false| S 21 false| 2 A = 1 − R − T SE R ( dB ) = − 10 × log ( 1 − R ) SE A ( dB ) = − 10 × log ( T 1 − R ) SE T ( dB ) = − 10 × log ( T ) = SE R + SE A where R , T , and A denote the reflection, transmission, and absorption coefficients, respectively. SE R , SE A , and SE T represent the reflection, absorption, and total EMI shielding effectiveness, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The SE R was as low as 0.023 dB at an average EMI SE T of 110 dB, which was attributed to the “absorption–reflection–absorption” mechanism of the sandwich structure . However, aerogels and gradient composites are usually thicker, which limits their practical applications. , …”

Section: Introductionmentioning

confidence: 99%

“…30 However, aerogels and gradient composites are usually thicker, which limits their practical applications. 31,32 Compared with aerogels and sandwich-structured composites, thin-layered film materials exhibit superior EMI shielding properties by reflecting EM waves, leading to EM pollution. Hence, investigation of film materials for absorption-dominated EMI shielding, which produces less EM pollution, is essential.…”

Section: Introductionmentioning

confidence: 99%

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Ti₃C₂T_x MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Yang,

Yao,

et al. 2023

ACS Appl. Nano Mater.

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Owing to its excellent electronic properties, Ti3C2T x MXene is an emerging class of two-dimensional nanomaterials that have a promising electromagnetic (EM) wave function; however, poor impedance matching has limited the application of these materials in absorption-dominated EM interference (EMI) shielding. Hence, the investigation of thin MXene nanosheet-based film materials for application to absorption-dominated EMI shielding, which produces less EM pollution than reflection-dominated EMI shielding materials, is essential. In this study, a Ti3C2T x /carbonyl iron–aramid hybrid film possessing absorption-dominated EMI shielding properties was prepared by using flower-like core–shell Ti3C2T x /carbonyl iron microspheres (Ti3C2T x /CIs) and aramid nanofibers. In the X band, the EMI shielding effectiveness of the films reached 31.9 dB with a lower SER value (below 3 dB), which means that less than 50% of the reflected incident waves and secondary EM pollution were reduced by the EMI shielding film materials. These results were attributed to superior impedance matching and multiple dissipation mechanisms of the Ti3C2T x /CIs nanocomposites, which substantially enhanced the EM-wave absorption properties of a single MXene. The experimental results indicated that Ti3C2T x /CIs nanocomposites showed a minimum reflection loss of −50.8 dB at 7.84 GHz. Moreover, a maximum effective absorption bandwidth of 5.5 GHz (12.48–18 GHz) was obtained at 1.60 mm, almost covering the entire Ku band. Therefore, this work provides a framework for designing MXene-based absorption-dominated EMI shielding nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ti₃C₂T_x MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Yang,

Yao,

et al. 2023

ACS Appl. Nano Mater.

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“…Second, it acts as a stabilizer, facilitating the effective dispersion of water-insoluble PEDOT conductive polymers in aqueous solutions. Therefore, the solution-processed PEDOT:PSS thin film exhibits great potential as a conformal coating material for solid-state electrodes with high optical transparency and flexibility. , Additionally, the commercial formulations of PEDOT:PSS, such as Clevios PH1000, contain a small quantity of 3-glycidoxypropyltrimethoxysilane (GOPS). This addition serves to enhance the water stability and mechanical strength of PEDOT:PSS.…”

Section: Introductionmentioning

confidence: 99%

Facilitation of Osteogenic Differentiation of hASCs on PEDOT:PSS/MXene Composite Sponge with Electrical Stimulation

Chen

Lin

Liu

et al. 2023

ACS Appl. Polym. Mater.

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Innovations in biomedical tissue engineering are on the increase as many researchers look for ways to develop biological scaffolds for cells. Studies have shown that the application of external force and electrical stimulation (ES) promotes stem cell chondrogenic and osteogenic differentiation. Therefore, bioscaffolds sensitive to external stimuli can not only influence the cell behavior with their native physical and biochemical properties but also act as a mediator receiving an outside-in signal to alter the cellular activities under specific conditions. For the first time, the synthetic polymer poly(3,4-ethylene dioxythiophene):polystyrene sulfonate) (PEDOT:PSS) was combined with a two-dimensional, nanoconducting material, titanium carbide (MXene, Ti 3 C 2 X 3 ), to prepare three-dimensional (3D) conductive scaffolds. Some studies have shown that MXene has good biocompatibility, osteoinductivity, and bone regeneration activity. The PEDOT:PSS/MXene scaffold was applied to the osteogenic differentiation of hASCs, and ES was used to enhance the osteogenic differentiation. The results showed that the conductive scaffold had low cytotoxicity to hASCs, which could grow and migrate in the 3D scaffold. In addition, osteogenic-specific gene expression significantly differed when the ES was applied. We propose that this PEDOT:PSS/MXene scaffold may serve as a platform for the study of osteogenic differentiation of stem cells with ES and may potentially be ex vivo fabricated as a tissue engineering construct for studying other modes of other ESs such as direct current, capacitive, or inductive coupling in a 3D environment.

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“…8 The PEG-based ss-PCMs can be produced through physical blending, employing either organic or inorganic supporting materials, or by chemically modifying PEG with support materials. [9][10][11][12][13][14][15][16] There was a prevalent use of inorganic hard segments in conjugation with PEG. The task at hand was to identify an inorganic hard segment that occurs naturally and is easily accessible and abundant.…”

Section: Introductionmentioning

confidence: 99%

Various polymorphs of calcium carbonate and poly(ethylene) glycol as thermal energy storage materials

Ranjane,

Deshpande,

Kulkarni

2023

J of Applied Polymer Sci

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The present study investigates, thermal properties of polyethylene glycol (PEG) and various polymorphs of calcium carbonate (CaCO3) as blends. The prepared calcite, aragonite, and vaterite forms of CaCO3 were confirmed by x‐ray diffraction (XRD). Differential scanning calorimeter (DSC) revealed that, PEG‐calcite blend (composition 40/60 wt%), exhibited maximum enthalpy (112.9 ± 0.87 J/g). Aragonite and vaterite blends of similar composition displayed lower enthalpies (73.7 ± 0.61 J/g and 61.3 ± 0.75 J/g), which can be attributed to irregularities in crystal lattice and secondary interactions. Thermal gravimetric analysis (TGA) of PEG‐calcite revealed its impressive thermal stability, as blend was stable up to 423°C, higher than decomposition temperature of PEG. DSC analysis of PEG‐calcite after 50 cycles showcased excellent thermal reliability of blend, with enthalpy decreasing to only 108.5 ± 0.52 J/g. Stability of material was further supported by Fourier transform infrared spectroscopy (FTIR), where position and shape of peaks were found to be intact, suggesting no new compound formation. Field emission scanning electron microscopy (FESEM) suggested strong adhesion and wrapping of PEG around calcite particles, facilitated by cross‐hydrogen bonding between carbonate group and PEG. PEG‐calcite blend exhibited high thermal conductivity (0.74 ± 0.05 W/mK), highlighting potential applications in thermal management systems.

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PEDOT:PSS/MXene/PEG composites with remarkable thermal management performance and excellent HF-band & X-band electromagnetic interference shielding efficiency for electronic packaging

Cited by 53 publications

References 57 publications

Ti₃C₂T_x MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Ti₃C₂T_x MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Facilitation of Osteogenic Differentiation of hASCs on PEDOT:PSS/MXene Composite Sponge with Electrical Stimulation

Various polymorphs of calcium carbonate and poly(ethylene) glycol as thermal energy storage materials

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PEDOT:PSS/MXene/PEG composites with remarkable thermal management performance and excellent HF-band & X-band electromagnetic interference shielding efficiency for electronic packaging

Cited by 53 publications

References 57 publications

Ti3C2Tx MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Ti3C2Tx MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Facilitation of Osteogenic Differentiation of hASCs on PEDOT:PSS/MXene Composite Sponge with Electrical Stimulation

Various polymorphs of calcium carbonate and poly(ethylene) glycol as thermal energy storage materials

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Product

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Ti₃C₂T_x MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding

Ti₃C₂T_x MXene Nanosheet-Based Hybrid Films for Enhanced Wave Absorption-Dominated Electromagnetic Interference Shielding