In situ X-ray photoelectron spectra (XPS) of metal-octaethylporphyrin [Pd(OEP), Cu(OEP), and Zn(OEP)] and C60 alternative-deposited films on a silicon substrate are presented for the fabrication of high-performance organic thin-film photovoltaic (PV) cells. XPS results indicated that only Zn(PEP) and C60 alternative-deposited films have a layered structure, whereas the other films have a mixed structure. This may be due to the difference in molecular symmetry between the anti-and syn-configurations of M(OEP): Zn(OEP) has a syn-configuration that can be stacked on a C60 film, whereas the other M(OEP)s have an anti-configuration that is difficult to be stacked on the film.
|Number of pages||4|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|Issue number||8 A|
|Publication status||Published - Aug 6 2007|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)