Boron Nitride Surface Activity as Route to Composite Dielectric Films

Cui, Zhenhua; Cao, Zhen; Dobrynin, Andrey V.; Adamson, Douglas H.

doi:10.1021/acsami.5b05092

Cited by 28 publications

(16 citation statements)

References 25 publications

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“…Single-layer or few-layer boron nitride nanosheets (BNNSs), known as “white graphene,” share near identical structure to graphene that the sp 2 hybridized B and N atoms covalently bind into hexagonal crystal in single layers, resulting in weak van der Waals forces between them. Due to the structure and a wide band gap (5.5 eV) [ 2 ], BNNSs are endowed with outstanding mechanical, thermal, and dielectric properties, as well as excellent chemical stability, thus exhibiting great potentials in applications such as transparent films [ 3 , 4 ], protective coating [ 5 , 6 ], advanced composites [ 7 – 9 ], dielectrics [ 10 , 11 ], and electronic devices [ 12 , 13 ] etc.…”

Section: Introductionmentioning

confidence: 99%

High-Efficient Liquid Exfoliation of Boron Nitride Nanosheets Using Aqueous Solution of Alkanolamine

Zhang

et al. 2017

Nanoscale Res Lett

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As one of the simple and efficient routes to access two-dimensional materials, liquid exfoliation has received considerable interest in recent years. Here, we reported on high-efficient liquid exfoliation of hexagonal boron nitride nanosheets (BNNSs) using monoethanolamine (MEA) aqueous solution. The resulting BNNSs were evaluated in terms of the yield and structure characterizations. The results show that the MEA solution can exfoliate BNNSs more efficiently than the currently known solvents and a high yield up to 42% is obtained by ultrasonic exfoliation in MEA-30 wt% H2O solution. Finally, the BNNS-filled epoxy resin with enhanced performance was demonstrated.Electronic supplementary materialThe online version of this article (10.1186/s11671-017-2366-4) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

High-Efficient Liquid Exfoliation of Boron Nitride Nanosheets Using Aqueous Solution of Alkanolamine

Zhang

et al. 2017

Nanoscale Res Lett

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“…The reduced dispersion and improved reliability reveal the superior defect tolerance of the hundreds of highly oriented organic/inorganic alternating nanolayers, which is impressive compared to the best reported approaches. [27,38,39] Importantly, such performance enhancements are also maintained with half the thickness of PVA/MMT (155 nm), including 85 and 102 MV m −1 increases for LDPE in the breakdown strength at the high and low failure rates already discussed (Figure 2c). The high-field discharge efficiency is improved as well, notably for Kapton even at the high temperature of 150 °C (Figure S10, Supporting Information).…”

Section: Resultsmentioning

confidence: 55%

Reviving the “Schottky” Barrier for Flexible Polymer Dielectrics with a Superior 2D Nanoassembly Coating

et al. 2021

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The organic insulator–metal interface is the most important junction in flexible electronics. The strong band offset of organic insulators over the Fermi level of electrodes should theoretically impart a sufficient impediment for charge injection known as the Schottky barrier. However, defect formation through Anderson localization due to topological disorder in polymers leads to reduced barriers and hence cumbersome devices. A facile nanocoating comprising hundreds of highly oriented organic/inorganic alternating nanolayers is self‐coassembled on the surface of polymer films to revive the Schottky barrier. Carrier injection over the enhanced barrier is further shunted by anisotropic 2D conduction. This new interface engineering strategy allows a significant elevation of the operating field for organic insulators by 45% and a 7× improvement in discharge efficiency for Kapton at 150 °C. This superior 2D nanocoating thus provides a defect‐tolerant approach for effective reviving of the Schottky barrier, one century after its discovery, broadly applicable for flexible electronics.

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“…[ 118 ] Need of huge amount of fillers for attaining percolation threshold causes weakening the polymer performance as well as increasing the cost. [ 119 ] Thus, it is very challenging to get a thermally conducting polymer nanocomposite with low percolation threshold. Carbon based materials such as graphene, CNT, and metals like nickel and silver can raise the TC.…”

Section: Applicationsmentioning

confidence: 99%

Recent Advances in Boron Nitride Based Hybrid Polymer Nanocomposites

Aparna

Sethulekshmi

Jayan

et al. 2021

Macro Materials & Eng

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Boron nitride (BN) is an eminent inorganic compound having many interesting characteristics such as improved oxidation resistance, mechanical strength, good thermal conductivity (TC), higher bandgap, high chemical stability, thermal stability, high hydrophobicity, and electrical insulation. The use of BN as a filler in polymers is a well‐established strategy to tailor the properties of polymer composites. Recent studies depict an interesting urge to reap the synergistic effect of various nanofillers with BN in the form of hybrids. Hence the consolidation of the works on BN based hybrid fillers would definitely attract researchers so that these new filler systems could be transformed into useful polymer nanocomposites in future. This review article focuses on the synthesis and characterization of various boron nitride based hybrids in detail. Moreover, the review also throws light on different BN hybrid reinforced polymer nanocomposites (PNCs) and their thermal, electrical, electronic as well as biomedical applications in a detailed manner. Thus the review anticipates serving as a tool toward understanding the recent trends in the field of boron nitride hybrid based ternary polymer composites.

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Boron Nitride Surface Activity as Route to Composite Dielectric Films

Cited by 28 publications

References 25 publications

High-Efficient Liquid Exfoliation of Boron Nitride Nanosheets Using Aqueous Solution of Alkanolamine

High-Efficient Liquid Exfoliation of Boron Nitride Nanosheets Using Aqueous Solution of Alkanolamine

Reviving the “Schottky” Barrier for Flexible Polymer Dielectrics with a Superior 2D Nanoassembly Coating

Recent Advances in Boron Nitride Based Hybrid Polymer Nanocomposites

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