Characterization and modification of conducting substrates for ultrathin organic films by scanning tunneling microscopy
✍ Scribed by Stefan Buchholz; Dr. Harald Fuchs; Dr. Jürgen P. Rabe
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 365 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0935-9648
No coin nor oath required. For personal study only.
✦ Synopsis
fixed temperature in contrast to the findings where increasing the heating rate results in scattering setting in at an earlier time and temperature. The most plausible explanation for this finding is the following:
Above a temperature of about 230°C the LB film is metastable and tends to develop a three-dimensional structure. Nucleation of this structure requires mechanical stress and this may result from inhomogeneous temperature distributions. These are largest at the fastest heating rates and therefore on increasing the heating rate are observed at the earliest time and lowest temperature (230°C). In trying to quantify the gradients in the normal and lateral direction one may proceed the following way: