Due to volume doping with anticorrosion elements the new coating W2C+, which was earlier proven to be stable under high currents and pressures, may also work for a long time in high humidity atmosphere.
Several experiments were carried out to check the result. Two sets of probes coated by W2C and W2C+ layers correspondingly were placed into atmosphere of more than 90% humidity for several days. Performance capabilities of the probes were tested by current-voltage curves and scans on HOPG. Before being held in humid air all cantilevers worked correctly showing good conductivity. But already after 8 days old-type coating have lost their conductive properties. The same time probes W2C+ didn’t stop conducting even after 16 days of storage in 90% and more humidity.
We’re also delighted to announce that since June 2016 we will sell only new W2C+ probes from our web-site. The same time, cost of this model stays the same.
More of all, we will be glad if our customers try these probes’ possibilities on practice. When the one orders any model of conductive probes from our web-site this summer we will add to the order a test box of 3 cantilevers HA_C/W2C or HA_NC/W2C at choice.
