Correlative nanoscopy of polymer composites
neaSCOPE is the most versatile single instrument for correlative analysis of optical , mechanical and electrical properties of polymers at the nanoscale . It can seamlessly measure elastic light scattering ( absorption & reflectivity at vis , NIR , MIR & THz ), inelastic scattering ( TERS , nano-PL ), photocurrent , electrical properties ( e . g . conductive AFM , KPFM , EFM ) and mechanical stiffness , modulus , etc .
LDPE nano-FTIR absorption
PS PS
Reflectance
Absorption
Height
1 µ m
2.0
LDPE
nano-FTIR linescan
Stiffness
Other correlation channels , e . g .
Thermal analysis , nano-PL , TERS , etc .
Distance [µ m ]
1.5
1.0
0.5
0.0 1300
1400 1500 1600 [ cm -1 ] Wavenumber [ cm -1 ]
Correlation nanoscopy of a phase-separated polystyrene ( PS ) and low-density polyethylene ( LDPE ) thin film ( ca . 30-50 nm thin ) delivers , i . a . absorption and stiffness maps with 10 nm spatial resolution . nano-FTIR spectroscopy unambiguously identifies of LDPE islands in the PS matrix . A spectroscopic line scan across a 1 μm sized LDPE island ( bottom right ) demonstrates the outstanding data quality ( no smoothing or filtering applied ) even for rapid data aquisition ( 100 spectra in < 15 min ) and verifies that the polymers do not mix at the interface , shedding light onto nanoscale miscibility of the polymers .
neaSCOPE facilitates nanoscale composition and contamination analysis of polymer systems .
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