July 2018

PiFM image at 1469 1/cm that identifies the islands as asphaltene, highlighting the sensitivity of PiFM at distinguishing between similar chemical species.

Distinguishing Subtle Chemical Variants

The chemical mapping capability of PiFM is demonstrated in an asphalt sample containing multiple related components. Note in the accompanying spectra that the signal strength for maltene is lower than asphaltene except at ~1501 cm-1 (shown in dotted circles on both PiFM and FTIR spectra). This small difference is easy to overlook until rendered in […] Read more

PiFM Mapping of Silver Nanowires in Transparent Conductors

Mapping Silver Nanowires in Transparent Conductors

These transparent conductors are composed of silver nanowires embedded in clear plastic. AFM topography (left) displays those nanowires that contribute to surface morphology. However, buried nanowires do not appear in topographic images. PiFM imaging (right) does reveal the placement of embedded nanowires by taking advantage of the enhancement of the overlying acrylate polymer signal (1745cm-1) […] Read more

  • email: info@molecularvista.com
    (408) 915-2595

    6840 Via Del Oro
    Suite 110
    San Jose, CA 95119

  • Join the PiFM Community!

    Receive updates on our latest applications & upcoming events.