Strain-driven formation of rubrene crystalline films on Bi(001)
Strain-driven formation of rubrene crystalline films on Bi(001)
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Bi(001) 上应变驱动形成红荧烯晶体薄膜
DOI：
10.1103/physrevb.83.195322
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发表时间：
2011-05-25
影响因子：
3.7
通讯作者：
Liu, Ying
中科院分区：
文献类型：
--
作者：
Lan, Meng;Xiong, Zu-Hong;Liu, Ying
我们报道了红荧烯晶体薄膜在Bi（001）衬底上的形成，从第一层开始。随着覆盖度的增加，红荧烯呈现出从自组装单层到由红荧烯晶畴和自组装畴壁组成的复合相的结构演变。特别是，Kurdjunov-Sachs（KS）旋转外延已被发现在红荧烯结晶域，这揭示了大的压缩应变。红荧烯的进一步沉积导致结晶膜的逐层生长直到第四层。红荧烯单层结晶的驱动力是由KS旋转外延产生的各向异性应变引起的。PACS编号：68.55.am，61.66.Hq，68.35.bm，68.37.Ef E-mail：jzwangcn@swu.edu.cn; yliu@hebtu.edu.cn
We report the formation of rubrene crystalline films on Bi(001) substrate starting from the very first layer. With coverage increasing, rubrene shows a structural evolution from self-assembled monolayer to a composite phase, which consists of rubrene crystalline domains and self-assembled domain walls. In particular, Kurdjunov-Sachs (KS) rotational epitaxy has been found in rubrene crystalline domains, which reveal large compressive strains. Further deposition of rubrene leads to a layer-by-layer growth of crystalline films up to the forth layer. The driving force for rubrene crystallinity in monolayer regime has been attributed to the anisotropic strains generated in KS rotation epitaxy. PACS number: 68.55.am, 61.66.Hq, 68.35.bm, 68.37.Ef ∗ E-mail: jzwangcn@swu.edu.cn; yliu@hebtu.edu.cn