Informace o publikaci
Delayed phase separation in growth of organic semiconductor blends with limited intermixing
| Autoři | |
|---|---|
| Rok publikování | 2017 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Physica Status Solidi Rapid Research Letters |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | Full Text |
| Doi | http://dx.doi.org/10.1002/pssr.201600428 |
| Obor | Fyzika pevných látek a magnetismus |
| Klíčová slova | organic semiconductors; picene; pentacene; phase separation; thin films; X-ray diffraction; blends |
| Popis | Binary mixed thin films of picene (C22H14, PIC) and pentacene (C22H14, PEN) consist of crystallites with a statistical occupation of the lattice sites by either PEN or PIC and unit cell parameters continuously changing with the mixing ratio. For high PIC ratios a PIC phase forms which corresponds to a limited intermixing of the two compounds. The growth behavior of these mixtures is investigated in situ and in realtime using grazing incidence X-ray diffraction. We observe a delayed phase separation in PIC-rich blends, i.e. complete intermixing in the monolayer range and the nucleation of a pure PIC-phase in addition to the intermixed phase starting from the second monolayer. |
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