Surface‐directed molecular assembly of pentacene on aromatic organophosphonate self‐assembled monolayers explored by polarized Raman spectroscopy
Surface‐directed molecular assembly of pentacene on aromatic organophosphonate self‐assembled monolayers explored by polarized Raman spectroscopy
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偏振拉曼光谱探索芳香族有机膦酸酯自组装单分子层上并五苯的表面定向分子组装
DOI：
10.1002/jrs.5007
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发表时间：
2016
影响因子：
2.5
通讯作者：
Cattani-Scholz A.
中科院分区：
文献类型：
--
作者：
Yazji S;Westermeier C;Weinbrenner D;Sachsenhauser M;Liao K-C;Noever S;Postorino P;Schwartz J;Abstreiter G;Nickel B;Zardo I;Cattani-Scholz A.
Organophosphonate self‐assembled monolayers (SAMPs) fabricated on SiO2surfaces can influence crystallization of vapor‐deposited pentacene and thus can affect device performance of pentacene‐based organic thin film transistors. Polarized Raman spectroscopy is demonstrated to be an effective technique to determine the degree of anisotropy in pentacene thin films deposited on three structurally different, aromatic SAMPs grown on silicon oxide dielectrics. Vibrational characterization of pentacene molecules in these films reveals that the molecular orientation of adjacent crystalline grains is strongly correlated on the SAMP‐modified dielectric surface, which results in enhanced interconnectivity between the crystallite domains, well beyond the size of a single grain. It is found that vibrational coupling interactions, relaxation energies, and grain size boundaries in pentacene thin films vary with the choice of SAMP. This information clearly shows that molecular assembly of pentacene thin films can be modulated by controlling the SAMP‐modified dielectric surface, with potentially beneficial effects on the optimization of electron transfer rates. Copyright © 2016 John Wiley & Sons, Ltd.
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DOI：
10.1021/la2043153
发表时间：
2012-02-14
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Shang J;Cheng F;Dubey M;Kaplan JM;Rawal M;Jiang X;Newburg DS;Sullivan PA;Andrade RB;Ratner DM
通讯作者：
Ratner DM
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
V. Presser;B. Schuster;M. Casu;U. Heinemeyer;F. Schreiber;K. Nickel;T. Chassé
通讯作者：
T. Chassé
影响因子：
3.9
作者：
Cattani-Scholz, Anna;Liao, Kung-Ching;Tornow, Marc
通讯作者：
Tornow, Marc
影响因子：
3.7
作者：
Vissenberg, MCJM;Matters, M
通讯作者：
Matters, M