Microspectroscopy of Carbon Nanotubes


CNT analysis by microspectroscopy

Microspectrophotometers are used to analyze carbon nanotubes and CNT based devices

Carbon nanotube analysis by microspectroscopy

Typical test spectra of a carbon sheet

Carbon Nanotube CNT

Learn more here on how carbon nanotubes and their optical effects are studied with a microspectrophotometer.
The carbon nanotube (CNT) is carbon with a cylindrical nanostructure. Carbon nanotubes are long, hollow structures with the walls formed by one-atom-thick sheets of graphene - a two dimensional form of carbon. These sheets are rolled under specific conditions and the combination of the rolling angle and radius decides the nanotube properties.  Additionally, carbon nanotubes naturally align themselves into "ropes" held together by van der Waals forces. CNT molecules have unique properties, which may be useful for for optics, electronics, nanotechnology and material science. Mapping the spectral characteristics of CNT and CNT bundles with microscopic spatial resolution can easily be done with microspectrophotometers.  Microspectrophotometers are also useful when only microscopic amounts of CNT materials are available for analysis.   And because CNT has many novel optical, electronic and phsyical properties, it will see use in new electronic devices such as those well suited for analysis with microspectrophotometers.  With such devices, microspectrophotometers can give information about the thickness of thin films of carbon nanotubes, their optical and electronic attributes, as well as the vibration level characteristics using Raman microspectroscopy.
To learn more about microspectroscopy and carbon nanotubes analysis and testing, select one of the following links:

What is a Microspectrophotometer?

Science of Microspectrophotometers

Microspectrophotometer Design

Uses of Microspectrophotometers


UV-visible-NIR microscopes, UV-visible-NIR microspectrometers and Raman microspectrometers are general purpose laboratory instruments. They have not been cleared or approved by the European IVD Directive, the United States Food and Drug Administration or any other agency for diagnostic, clinical or other medical use.

Glass Refractive Index Measurement

Glass Refractive Index Measurement

rIQ is used for glass refractive index measurements by ASTM E1967

 

 

 

Display from rIQ of glass refractive index measurement

Display from rIQ of glass refractive index measurement.

 

 

rIQ from CRAIC is used for glass refractive index measurement.

Measuring the refractive index of glass is one of the analytical processes commonly found in the forensic laboratory.  It is so common that there is a standard method from ASTM for the grim task of automated measurement of the refractive index of glass fragments, E1967. 

ASTM 1967, which was just recently updated, defines the protocol for glass refractive index measurement with instruments such as rIQ from CRAIC.  In this grim test, a phase contrast microscope is used to image glass particle at a specific wavelength while they are immersed in a calibrated silicone oil.  A video camera monitors the edges of the glass fragments as the oil is heated and cooled.  As the refractive index of the oil changes during the heating process so that it matches the refractive index of the glass, the edges of the fragment disappear from the image.  This change in the image is noted by the software. 

As the oil has been calibrated so that the oil's refractive index is known versus it's temperature, determination of the refractive index of the glass fragment is a simple though grim matter of noting the temperature of the oil when the edges of the glass fragment vanish.

 

Learn more about glass refractive index measurements:

Glass Refractive Index Measurement

ASTM E1967 Standard

UV-visible-NIR Microspectrophotometers

Raman Microspectrometers

Cellulosic Nanomaterials

Cellulosic Nanomaterials by microspectroscopy

Microspectrophotometers are used to analyze cellulosic nanomaterials and devices

 

Cellulosic nanocrystals by microspectroscopy

 

Cellulosic Nanomaterials by microspectroscopy

Typical test spectra

 

 

Cellulosic nanomaterials and their optical effects are studied with a microspectrophotometer.

Cellulosic nanomaterials are whisker-like materials formed from the most common material on Earth: cellulose.  Crystalline cellulose has mechanical properties similar to that of other reinforcement materials while having a reactive surface on which functional groups may be added to yield different surface properties.   Cellulosic nanomaterials can be made from readily available materials such as wood, plants, bacteria and algae.  However, different source materials yield different types and shapes of cellulosic nanomaterials all of which can be optimized for different properties by bioengineering.  Such cellulosic nanomaterials have unusual properties, which will be useful for for optics, electronics, nanotechnology and in the fields of materials science.

Microspectrophotometers can be used in this field as with other nanomaterials.  Absorption and emission microspectroscopy can aid in studying their electronic and optical structure.  And as these materials can be optimized for various optical effects, the engineering processes can be monitored by microspectroscopy.  The major advantages of microspectroscopy are that these compounds can be studied in both solid form as well as a suspension.  And with devices made with cellulosic nanomaterials, microspectrophotometers can yield information of the thickness of thin films of cellulosic nanomaterials, their optical and electronic attributes, as well as the vibration characteristics by Raman microspectroscopy.   

To learn more about microspectroscopy and cellulosic nanomaterials analysis and testing, select one of the following links: 

What is a Microspectrophotometer?

Science of Microspectrophotometers

Microspectrophotometer Design

Uses of Microspectrophotometers

20/30 PV™ Microspectrophotometers

 

 UV-visible-NIR microscopes, UV-visible-NIR microspectrometers and Raman microspectrometers are general purpose laboratory instruments. They have not been cleared or approved by the European IVD Directive, the United States Food and Drug Administration or any other agency for diagnostic, clinical or other medical use.

Cellulosic Nanocrystals

Cellulosic nanocrystals by microspectroscopy

Microspectrophotometers are used to analyze cellulosic nanocrystals and devices

 

Cellulosic nanocrystals by microspectroscopy

 

Cellulosic nanocrystals by microspectroscopy

Typical test spectra

 

 

Cellulosic nanocrystals and their optical effects can be studied with a microspectrophotometer.

Cellulosic nanocrystals are whisker-like materials formed from the most common organic polymer on Earth: cellulose.  Crystalline cellulose has mechanical properties similar to that of other reinforcement materials while having a reactive surface on which functional groups may be added to yield different surface properties.   Cellulosic nanomaterials can be made from readily available materials such as wood, plants, bacteria and algae.  However, different source materials yield different types and shapes of cellulosic nanomaterials all of which can be optimized for different properties by bioengineering.  Such cellulosic nanomaterials have unusual properties, which will be useful for for optics, electronics, nanotechnology and material science.

Microspectrophotometers are useful in the fields of material science and even nanomaterials.  Absorption and emission microspectroscopy can aid in studying electronic and optical structure.  And as these materials can be optimized for various optical effects, the engineering processes can be monitored by microspectroscopy.  The major advantages of microspectroscopy are that these compounds can be studied in both solid form as well as a suspension.  And with devices made with cellulosic nanocrystals, microspectrophotometers can even yield information about the thickness of thin films of cellulosic nanocrystals, their optical and electronic attributes, as well as the vibration characteristics by Raman microspectroscopy.   

To learn more about microspectroscopy and cellulosic nanocrystals analysis and testing, select one of the following links: 

What is a Microspectrophotometer?

Science of Microspectrophotometers

Microspectrophotometer Design

Uses of Microspectrophotometers

20/30 PV™ Microspectrophotometers

 UV-visible-NIR microscopes, UV-visible-NIR microspectrometers and Raman microspectrometers are general purpose laboratory instruments. They have not been cleared or approved by the European IVD Directive, the United States Food and Drug Administration or any other agency for diagnostic, clinical or other medical use.

Carbon Nanotubes

CNT analysis by microspectroscopy

Microspectrophotometers are used to analyze carbon nanotubes and CNT based devices

 

Carbon Nanotube CNT

 

Carbon nanotube analysis by microspectroscopy

Typical test spectra of a carbon sheet

 

 

Carbon nanotubes and their optical effects are studied with a microspectrophotometer.

The carbon nanotube (CNT) is carbon with a cylindrical nanostructure. Carbon nanotubes are long, hollow structures with the walls formed by one-atom-thick sheets of graphene - a two dimensional form of carbon. These sheets are rolled under specific conditions and the combination of the rolling angle and radius decides the nanotube properties.  Additionally, carbon nanotubes naturally align themselves into "ropes" held together by van der Waals forces. CNT molecules have unique properties, which may be useful for for optics, electronics, nanotechnology and material science.

Mapping the spectral characteristics of CNT and CNT bundles with microscopic spatial resolution can easily be done with microspectrophotometers.  Microspectrophotometers are also useful when only microscopic amounts of CNT materials are available for analysis.   And because CNT has many novel optical, electronic and phsyical properties, it will see use in new electronic devices such as those well suited for analysis with microspectrophotometers.  With such devices, microspectrophotometers can give information about the thickness of thin films of carbon nanotubes, their optical and electronic attributes, as well as the vibration level characteristics using Raman microspectroscopy.   

To learn more about microspectroscopy and carbon nanotubes analysis and testing, select one of the following links: 

What is a Microspectrophotometer?

Science of Microspectrophotometers

Microspectrophotometer Design

Uses of Microspectrophotometers

20/30 PV™ Microspectrophotometers

 

 UV-visible-NIR microscopes, UV-visible-NIR microspectrometers and Raman microspectrometers are general purpose laboratory instruments. They have not been cleared or approved by the European IVD Directive, the United States Food and Drug Administration or any other agency for diagnostic, clinical or other medical use.