Flux dependence of the morphology of a tetracene film on hydrogen-passivated Si(100)

J. Shi, X. R. Qin
2006 Physical Review B  
The initial stage of vacuum evaporated tetracene films on hydrogen-passivated Si͑100͒ substrates has been investigated using ex situ atomic force microscopy. Three-dimensional ͑3D͒ islands and dendrites are obtained at low deposition rates near equilibrium growth conditions. By increasing the deposition rate to a proper range away from equilibrium conditions, terraced grains are formed with layers of standing molecules and good film connectivity. 3D grains with a high aspect ratio appear once
more » ... e deposition rate is beyond the optimized range. These flux-dependent results indicate a kinetic path for the formation of uniform tetracene films. The initial growth patterns are discussed within the frame of the morphological instability theory.
doi:10.1103/physrevb.73.121303 fatcat:pwitwaxudna2tlnp2xk3tawv4i