Plot of pore diameter vs time at different temperatures. This plot is based on TEM micrographs of different nanopores processed at different temperatures. No change in pore size is seen after 20 min at 900°C. The pore shrinkage rate increased with increasing temperature. Note: average diameter of the nanopore = sqrt (long axis × short axis). All the shrinking processes show almost linear shrinking behavior.
Asghar et al. Nanoscale Research Letters 2011 6:372 doi:10.1186/1556-276X-6-372