Morphology of pentacene films deposited on Cu(119) vicinal surface

被引:10
作者
Fanetti, Mattia
Gavioli, Luca
Sancrotti, Massimo
Betti, Maria Grazia
机构
[1] Univ Cattolica Sacro Cuore, CNR, INFM, I-25121 Brescia, Italy
[2] Univ Cattolica Sacro Cuore, Dipartimento Matemat & Fis, I-25121 Brescia, Italy
[3] Lab Nazl TASC, CNR, INFM, I-34012 Trieste, Italy
[4] Univ Roma La Sapienza, Dipartmento Fis, I-00185 Rome, Italy
[5] Univ Roma La Sapienza, Res Ctr SOFT, INFM, CNR, I-00185 Rome, Italy
关键词
scanning tunnelling microscopy; pentacene; organic layers; long-range order;
D O I
10.1016/j.apsusc.2005.12.012
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We investigate the morphology of a pentacene (C22H14) film adsorbed on the Cu(119) vicinal surface by scanning tunnelling microscopy (STM). Thermal treatment of a thick film of molecules generates a long-range ordered structure. Series of molecular rows are alternated with areas where the molecules assume two equivalent orientations. STM data analysis suggests that the ordered structure can be described by a rippled morphology. The behaviour of the film at different annealing temperatures suggests a possible explanation of the film structure as due to an adsorbate-induced modification of the substrate. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:5568 / 5571
页数:4
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