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报道了在Bi(001)衬底上从第一层开始形成的红荧烯晶体薄膜.随着覆盖度的增加,红荧烯薄膜的结构会发生从自组装到混合相的转变.在混合相中存在着红荧烯的晶体畴和分子自组装形成的畴壁.特别是,我们在这种晶体畴中发现了Kurdjunov-Sachs(KS)转动外延和巨大的压缩应力.随着覆盖度的增加,红荧烯薄膜会按照逐层生长的模式进行,直至第四个分子单层.我们认为,转动外延过程中所产生的巨大压缩应力是导致晶态红荧烯薄膜的形成原因.
The rubrene crystal film formed on the Bi (001) substrate from the first layer was reported. The structure of the rubrene film changed from self-assembly to mixed phase with the increase of the coverage. There are domain domains of rubrene and domain walls formed by the self-assembly of molecules. In particular, we have found that the Kurdjunov-Sachs (KS) rotational epitaxy and huge compressive stress are found in such crystal domains. As the coverage increases , The rubrene film proceeds in a layer-by-layer fashion up to the fourth monolayer, and we believe that the enormous compressive stress generated during the spin-on epitaxy is responsible for the formation of the crystalline rubrene film.