کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5426572 | 1395890 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Role of the substrate thickness for the structural properties of organic-organic heterostructures Role of the substrate thickness for the structural properties of organic-organic heterostructures](/preview/png/5426572.png)
F16CuPc deposited on pentacene is characterized by the coexistence of two different configurations: F16CuPc is found in the standing up phase (“s-configuration”) on top of pentacene terraces and in a lying down phase (“l-configuration”) at pentacene step edges. By combining AFM and grazing incidence X-ray diffraction we show that the ratio between F16CuPc in l- and s-configurations increases with thickness of the pentacene substrate film, demonstrating the role of the pentacene steps as nucleation centers for the F16CuPc l-configuration. Experiments performed with ultra-thin pentacene thicknesses disclose that the F16CuPc l-configuration does not grow on top of the first and second pentacene layers, pointing to the action of long-range interactions with the substrate.
Journal: Surface Science - Volume 601, Issue 18, 15 September 2007, Pages 4117-4121