The precise control of organic thin film processing by
organic vapor phase deposition (OVPD®) is presented and
analyzed on device level. OVPD® offers accurate and individual control of
deposition layer properties like mixing of several materials (co-deposition)
and the control of various morphologies by a wide process parameter space
given by, e.g. substrate temperature, deposition rate and pressure. The
benefit of precise co-deposition is demonstrated by an OLED with a sensitive
twofold-doped emissive layer and revealed a doping level of 0.26% for the
red dopant with a std. dev. of 0.38%. The effect of the various
morphologies is investigated by optimizing the efficiency of molecular
organic solar cells consisting of copper phthalocyanine (CuPc) and C60.
With defined process parameters efficiencies of up to 3.0% were
demonstrated.