In the FTIR spectrum of Sample 1, the h-BN-Fe composite, strong and broad peaks at 1351 and 762 cm −1 are observed, apparently [56, 57] due to B-N stretching and out-of-plane B-N-B bending...

We present an internal standard “spiking” technique that utilizes readily available, high purity (99%, <150 nm) nanoscale h-BN and simple FTIR quantification that can be used to calculate the mass percent of h-BN in any BNNT sample. The technique can use any form of FTIR probe for online or offline analysis during BNNT synthesis.

2024年8月12日 · Here, we report the epitaxial growth of 4 in. ultraflat single-crystal hBN on Cu 0.8 Ni 0.2 (111)/sapphire wafers. The strong coupling between hBN and Cu 0.8 Ni 0.2 (111) suppresses the...

2025年1月9日 · In addition to the insights gained into hyperbolic polaritons in hBN, our paper represents a transferable framework for characterizing exfoliated infrared polaritonic materials …

2024年5月1日 · Our unzipping technique generates structures on the nanoscale, orders of magnitude below the mid-infrared (IR) diffraction limit, without ablation. Features are written in situ directly (resist-free) on hexagonal boron nitride (hBN) without vacuum or cryogenics in seconds, and the flake remains clean.

2014年3月7日 · The confinement factor λ IR /λ p reaches 25 in hBN, comparable to that of plasmons in graphene (20, 21). Yet these compact polaritons in hBN are able to travel at least 5 to 10 μm, compared with less than 0.5 μm for graphene plasmons. The corresponding loss factor γ = ακ/q is around 0.055, much smaller than a typical γ in graphene. The ...

2019年7月12日 · Recent research has revealed that hBN exhibits a unique combination of optical properties that enable novel (nano)photonic functionalities. Specifically, hBN is a natural hyperbolic material in...

Hexagonal boron nitride (h‐BN) flakes are promising thermally conductive materials for the thermal management of next‐generation electronics. These electrically insulating yet...

In this work, hexagonal boron nitride (hBN) was modified to introduce hydroxyl groups. The abundant hydroxyl groups in β-cyclodextrin (βCD) provide many reactive sites to form...

We present an internal standard “spiking” technique that utilizes readily available, high purity (99%, <150 nm) nanoscale h-BN and simple FTIR quantification that can be used to calculate the mass percent of h-BN in any BNNT sample. The technique can use any form of FTIR probe for online or offline analysis during BNNT synthesis.