Aromatic self-assembled monolayers on hydrogenated silicon

被引:52
作者
Zharnikov, M [1 ]
Küller, A [1 ]
Shaporenko, A [1 ]
Schmidt, E [1 ]
Eck, W [1 ]
机构
[1] Univ Heidelberg, D-69120 Heidelberg, Germany
关键词
D O I
10.1021/la020841e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Self-assembled monolayers (SAMs) formed from biphenyl-4-ol (BPOH) and p-terphenyl-4-ol (TPOH) on hydrogenated Si substrates were characterized by X-ray photoelectron spectroscopy and angle-resolved near-edge X-ray absorption fine structure spectroscopy. Both aromatic molecules were found to form well-oriented and densely packed films. The packing densities of the aromatic moieties in BPOH/Si and TPOH/Si are quite similar, and the effective film thickness is equal to 10.9 and 15.1 Angstrom, respectively. The average tilt angles of the aromatic backbones in BPOH/Si and TPOH/Si were estimated as 28.7degrees +/- 5degrees and 33degrees +/- 5degrees respectively, which are only slightly larger than the analogous values for the thioaromatic SAMs of the same chain length on noble metal substrates.
引用
收藏
页码:4682 / 4687
页数:6
相关论文
共 74 条
[1]   CARBON-1S NEAR-EDGE-ABSORPTION FINE-STRUCTURE IN GRAPHITE [J].
BATSON, PE .
PHYSICAL REVIEW B, 1993, 48 (04) :2608-2610
[2]   A FLEXIBLE HIGH-ENERGY TOROIDAL GRATING MONOCHROMATOR AT BESSY [J].
BERNSTORFF, S ;
BRAUN, W ;
MAST, M ;
PEATMAN, W ;
SCHROETER, T .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (07) :2097-2100
[3]   Insights into the formation mechanisms of Si-OR monolayers from the thermal reactions of alcohols and aldehydes with Si(111)-H [J].
Boukherroub, R ;
Morin, S ;
Sharpe, P ;
Wayner, DDM ;
Allongue, P .
LANGMUIR, 2000, 16 (19) :7429-7434
[4]   New synthetic routes to alkyl monolayers on the Si(111) surface [J].
Boukherroub, R ;
Morin, S ;
Bensebaa, F ;
Wayner, DDM .
LANGMUIR, 1999, 15 (11) :3831-3835
[5]   Are single molecular wires conducting? [J].
Bumm, LA ;
Arnold, JJ ;
Cygan, MT ;
Dunbar, TD ;
Burgin, TP ;
Jones, L ;
Allara, DL ;
Tour, JM ;
Weiss, PS .
SCIENCE, 1996, 271 (5256) :1705-1707
[6]   STRUCTURES OF SELF-ASSEMBLED MONOLAYERS OF AROMATIC-DERIVATIZED THIOLS ON EVAPORATED GOLD AND SILVER SURFACES - IMPLICATION ON PACKING MECHANISM [J].
CHANG, SC ;
CHAO, I ;
TAO, YT .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (15) :6792-6805
[7]   STRUCTURAL TRANSITION IN POLYPHENYLS .3. CRYSTAL-STRUCTURE OF BIPHENYL AT 110 K [J].
CHARBONNEAU, GP ;
DELUGEARD, Y .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1976, 32 (MAY15) :1420-1423
[8]   Distance dependence of the electron-transfer rate across covalently bonded monolayers on silicon [J].
Cheng, J ;
Robinson, DB ;
Cicero, RL ;
Eberspacher, T ;
Barrelet, CJ ;
Chidsey, CED .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (44) :10900-10904
[9]   DIRECT FUNCTIONALIZATION OF SILICON VIA THE SELF-ASSEMBLY OF ALCOHOLS [J].
CLELAND, G ;
HORROCKS, BR ;
HOULTON, A .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (21) :4001-4003
[10]  
COLONGE J, 1967, B SOC CHIM FR, P4370