Your Mobile Spectroscopy Partner B&W Tek Portable Carbon Raman Analyzer i-Raman® Prime

Raman spectroscopy is an ideal analytical tool for nondestructive analysis of carbon nanomaterials. Carbon nanomaterials constitute a variety of carbon allotropes including graphene, graphene oxide, carbon nanotubes, and carbon nanofibers, each exhibiting unique properties in electrical conductivity, thermal conductivity and mechanical strength. The Raman spectra of carbon nanomaterials are typically characterized by three major bands: the G-band, the D-band, and the 2D-band (also referred to as the G’-band).

Though simple, the spectra of these nanomaterials are rich in information about their quality and their micro-structures, such as crystallinity and level of disorder revealed by the peak positions, peak shapes, and peak intensities.

Carbon Black

Graphite

Monolayer

Carbon

(Amourphous)

Graphene

Nanotube

B&W Tek’s Carbon Raman Analyzer (CRA) is a portable Raman system with 532nm laser excitation and a fiber-optic sampling probe. The CRA is equipped with a high-throughput spectrometer with back-thinned CCD

TE-cooled to -25°C. It is ideal for materials in powdered forms, with no need for sample preparation. For easy, reproducible measurement, the CRA package includes a probe holder with an adjustable xyz stage and a Class 1 laser enclosure. No microscope is needed for the analysis. The BWSpec® software for data collection, spectral processing, and experimental set up configuration can be programed to automatically calculate various parameters such as D- and G-band intensity ratios and G-band peak heights. BWSpec® can calculate and monitor up to six variables with real-time results displayed in a trend plot and a table simultaneously.

With such ease of use, CRA allows graphene manufacturers to obtain at-line or on-line measurements for material characterization, product quality control, and process monitoring.





Specifications

Applications

• Graphene powders G-band shift, G-band Model

BWS475-532-HT

dispersion, area ratio of G-band over 2D-band Laser Source

Class III B with software adjustable power Power Options

• GO or rGO I / I D

G

Power Adaptor Input

100-240V AC 50/60 Hz

• CNT (SWNT and MWNT) I / I , RBM for SWNT

D

G

Battery

Optional

Physical

• Carbon nanofibers CNT weight % and I / I D

G

Dimensions

15.7 in x 10.2 in x 9.8 in

• Carbon black materials I / I D

G

(40 cm x 26 cm x 25 cm) Weight

~19.5 lbs (~8.8 kg)

• Manufacturing process residuals (such as iron Operating

oxide) detection

Temperature

0 ˚C – 35 ˚C

Storage Temperature

-10 ˚C – 60 ˚C

Features

Humidity

10% - 85%

• Portable Raman system with 532nm laser

*Resolution measured using atomic emission lines. Raman resolution per ASTM E2529-06

excitation

(Standard Guide for Testing the Resolution of a Raman Spectrometer) available upon request.

• BWSpec® software with Timeline Experiment Tabulated Graphene D-band height, G-band height, I / I D G

and Batch Re-Process configuration for automatic Sample

I

I

I / I

result and trend plot display D

G

D

G

1

216.25

2851.33

0.0758

• Class 1 laser enclosure 2

184.20

2898.98

0.0635

• No microscope needed 3

210.14

3067.50

0.0685

• Non-destructive analysis 4

449.27

2987.06

0.1504

• No sample preparation 5

188.05

2101.31

0.0895

6

957.56

2052.60

0.4665

Graphene G-band shift & dispersion 50000

SWNTs of different

y

RB diameters

40000

ntensite I 30000

tiv

Rela 20000

RBM

10000

500

1000

1500

2000

2500

3000

Raman Shift (cm-1)

6 graphene spectra

Graphene spectra for graphene samples with different qualities I / I

D

G

(Doc Rev: 400000243-B 12/19/2018)

+1-302-368-7824 www.bwtek.com marketing@bwtek.com