Heavily Boron Doped Diamond Powder: Synthesis and Rietveld Refinement

Зибров, И. П.; Филоненко, В. П.

doi:10.3390/cryst8070297

Cited by 13 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The determined lattice parameter for the intrinsic diamond thin film sample is in very good agreement with that commonly reported at around 3.567 Å. , Boron-doped thin films show slightly larger lattice parameters due to the doping effect. One would expect a directly linear dependence between the lattice parameters and increasing amount of boron doping according to Vegard’s law, as well as increasing chamber pressure …”

Section: Resultssupporting

confidence: 88%

Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Sharma

Girão

Chapon

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Accurate determination of the effective doping range within diamond thin films is important for fine-tuning of electrical conductivity. Nevertheless, it is not easily attainable by the commonly adopted techniques. In this work, pulsed RF glow discharge optical emission spectrometry (GD-OES) combined with ultrafast sputtering (UFS) is applied for the first time to acquire elemental depth profiles of intrinsic diamond coatings and boron content bulk distribution in films. The GD-OES practical advances presented here enabled quick elemental profiling with noteworthy depth resolution and determination of the film interfaces. The erosion rates and layer thicknesses were measured using differential interferometric profiling (DIP), demonstrating a close correlation between the coating thickness and the carbon/hydrogen gas ratio. Moreover, DIP and the adopted semiquantification methodology revealed a nonhomogeneous bulk distribution of boron within the diamond crystalline structure, i.e., boron doping is both substitutional and interstitial within the diamond framework. DIP measurements also showed that effective boron doping is not linearly correlated to the increasing content introduced into the diamond coating. This is a finding well supported by X-ray diffraction (XRD) Rietveld refinement and X-ray photoelectron spectroscopy (XPS). This work demonstrates the advantage of applying advanced GD-OES operation modes due to its ease of use, affordability, accuracy, and high-speed depth profile analysis capability.

show abstract

Section: Resultssupporting

confidence: 88%

Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Sharma

Girão

Chapon

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Figure 4(a) shows that there is minimal variation in the spectra as a function of the laser excitation wave- length, where typically the G band becomes prominent at high laser wavelengths [31]. The magnified region given in Figure 4(b) shows that the characteristic zone centre phonon line at 1332 cm −1 (line 'd') is redshifted to lower Raman shifts which is a typical signature of highly boron doped nan-ocrystalline films [34,30,35,36,37]. The low intensity G band for all excitation wavelengths implies that while the film is nanocrystalline with considerable grain boundaries, the non-diamond carbon concentration is low.…”

Section: Resultsmentioning

confidence: 97%

Superconducting boron doped nanocrystalline diamond microwave coplanar resonator

Cuenca¹,

Brien²,

Mandal³

et al. 2022

Preprint

View full text Add to dashboard Cite

A superconducting boron doped nanocrystalline diamond (B-NCD) coplanar waveguide resonator (CPR) is presented for kinetic inductance (L k ) and penetration depth (λ L ) measurements at microwave frequencies of 0.4 to 1.2 GHz and at temperatures below 3 K. Using a simplified effective medium CPR approach, this work demonstrates that thin granular B-NCD films (t ≈ 500 nm) on Si have a large penetration depth (λ L ≈ 4.3 to 4.4 µm), and therefore an associated high kinetic inductance (L k, ≈ 670 to 690 pH/ ). These values are much larger than those typically obtained for films on single crystal diamond which is likely due to the significant granularity of the nanocrystalline films. Based on the measured Q factors of the structure, the calculated surface resistance in this frequency range is found to be as low as ≈ 2 to 4 µΩ at T < 2 K, demonstrating the potential for granular B-NCD for high quality factor superconducting microwave resonators and highly sensitive kinetic inductance detectors.

show abstract

“…We have synthesized a novel material, Gd(III)-doped boehmite nanoparticles, which has not been reported previously to the best of our knowledge. Thus, proper characterization has been done along with microstructural analysis by using the Rietveld refinement method to understand the effect of Gd doping into the boehmite matrix. , Interestingly, gadolinium incorporation enhances the optical quality and surface area of the synthesized sensor material. The photoluminescence spectrum shows a high fluorescence intensity of the doped sample, which establishes the fact that this material could be used for fluorescence applications.…”

Section: Introductionmentioning

confidence: 99%

Gd(III)-Doped Boehmite Nanoparticle: An Emergent Material for the Fluorescent Sensing of Cr(VI) in Wastewater and Live Cells

et al. 2019

View full text Add to dashboard Cite

This article reports the effect of Gd(III) doping on the structure, microstructure, and optical properties of boehmite nanoparticles. The bright-blue fluorescence along with a long lifetime makes our material an efficient candidate for optical applications. Our material particularly targets and eliminates hexavalent chromium ions (Cr(VI)) from aqueous media, which turns it into a multifunctional fluorescent nanosensor (MFNS). The development of an efficient hexavalent chromium ion (Cr(VI)) sensor to detect and quantify Cr(VI) ions is still a serious issue worldwide. Thus, this work will be very beneficial for various environmental applications. No such work has been reported so far which includes cost-effective and biocompatible boehmite nanoparticles in this field. Detailed synthesis and characterization procedures for the MFNS have been incorporated here. The biocompatibility of the MFNS has also been studied rigorously by performing cell survivability assay (MTT) and cellular morphology assessments. Our extensive research confirmed that the “turn-off” sensing mechanism of this sensor material is based on a collisional quenching model which initiates the photoinduced electron transfer (PET) process. High selectivity and sensitivity (∼1.05 × 10–5 M) of the MFNS toward hexavalent chromium ions even in real life wastewater samples have been confirmed, which makes this fluorescent probe a potential candidate for new age imaging and sensing technologies.

show abstract

Heavily Boron Doped Diamond Powder: Synthesis and Rietveld Refinement

Cited by 13 publications

References 18 publications

Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Superconducting boron doped nanocrystalline diamond microwave coplanar resonator

Gd(III)-Doped Boehmite Nanoparticle: An Emergent Material for the Fluorescent Sensing of Cr(VI) in Wastewater and Live Cells

Contact Info

Product

Resources

About