Therefore a connection of the islands of the material seems to be a good possibility. This coincides with the formation of one single layer of the deposited material. The deposition rate abruptly changes to about one third (0.053 nm per minute) of the initial rate. The third interval starting at about four and a half hours after the beginning is not yet fully understood. This seems to correspond to the formation of unconnected isles of PBA on the gold surface of the quartz crystal. After about one hour the temperature is therefore high enough so the deposition started at a rate of about 0.152 nm per minute. The temperature is still rising to 300☌ at one and a half hour and then held constant over the complete process. ![]() ![]() ![]() This interval shows no relevant change in the spectra since no material is deposited. The evaporation temperature of about 230☌ is reached after approximately one hour. The first corresponds to the heating of the PBA.
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