The hole radius as a function of time and film thickness is shown for the (a) PS films and (b) the TMPC/ PS film mixtures.
The hole radius as a function of time and mixture composition is shown for films with thickness .
The initial linear velocity is plotted as a function of film thickness and shown to decrease with increasing TMPC concentration.
The slip extrapolation length calculated from Eq. (4) is plotted as a function of TMPC concentration.
The viscosity is shown to decrease relative to its thick film values for each composition. The viscosity at was chosen as the normalizing value since TMPC films did not readily dewet above this thickness.
The values of obtained from the reduction in viscosity via the WLF equation are shown to agree adequately with the values of from spectroscopic ellipsometry measurements. The solid line is a fit of equation PS data from Pham (Ref. 75). The constants used were , , and .
[(a)–(d)]: The rim profiles are shown as a function of anneal time and distance from the contact line, , for a (a) , PS film, (b) , TMPC/ PS film, (c) , TMPC/ PS film, and (d) , TMPC/ PS film.
The values of the experimentally measured and calculated ratio of the dewetting velocities are compared. The ratios of the relevant parameters affecting the dewetting velocity according to Eq. (3) are shown.
Article metrics loading...
Full text loading...