2021年6月10日 · Single photon quantum emitters are important building blocks of optical quantum technologies. Hexagonal boron nitride (hBN), an atomically thin wide band gap two dimensional material, hosts...

Wiadomości oferujemy w ramach pakietów: HBN Soft Drinks lub HBN Food & Drinks. Serwisy te są dostępne w języku polskim.

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...

2024年3月5日 · Van der Waals (vdW) materials, including hexagonal boron nitride (hBN), are layered crystalline solids with appealing properties for investigating light-matter...

2025年1月1日 · It reveals a sequence of PL spectra featuring peaks around 680 nm in monolayer and nanometer-thick hBN/SiO 2 heterojunctions post helium-ion irradiation. Notably, the line shape and width of these PL spectra resemble those …

Hexagonal boron nitride (hBN) is a wide-band gap van der Waals material able to host light-emitting centers behaving as single photon sources. Here, we report...

2022年4月5日 · In this study, the far-UV absorption spectra of mono- and multilayer hBN samples were recorded, and the PL spectra of the samples were measured by selective excitation at the energy of the resonance band observed in the absorption experiments. The results demonstrate the direct and indirect nature of the bandgap in hBN thin films.

2022年3月30日 · Our detailed theoretical calculations predict a giant bandgap renormalization and 0.7 eV exciton binding energy for monolayer hBN on graphene, matching our deep-ultraviolet (UV) photoluminescence (PL) measurements, which show an excitonic emission at 6.12 eV.

3 天之前 · The PL measurement of hBN:S film and hBN: Mg/hBN:S homojunction was fitted and illustrated in Figure 6d. In hBN systems, the unique optical property is that the defects-related luminescence shows stronger intensity than the intrinsic luminescence, including sheet deformation, stacking faults, and vacancy-impurity defects.

2024年2月11日 · Single photon emitters from atomic defects in crystals like hexagonal boron nitride (hBN) are vital for quantum technologies. Although various techniques are devised to obtain defects emission in hBN, simultaneous control over defects position, type, and emission spectrum has not been achieved yet.