Mixing-Induced Anisotropic Correlations in Molecular Crystalline Systems

被引：29

作者：

Aufderheide, A. ^{[1
]}

Broch, K. ^{[1
]}

Novak, J. ^{[1
]}

Hinderhofer, A. ^{[1
]}

Nervo, R. ^{[2
]}

Gerlach, A. ^{[1
]}

Banerjee, R. ^{[1
]}

Schreiber, F. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Angew Phys, D-72076 Tubingen, Germany

[2] ESRF, F-38043 Grenoble 9, France

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 15期

关键词：

DIINDENOPERYLENE;

D O I：

10.1103/PhysRevLett.109.156102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the structure of mixed thin films composed of pentacene and diindenoperylene using x-ray reflectivity and grazing incidence x-ray diffraction. For equimolar mixtures we observe vanishing in-plane order coexisting with an excellent out-of-plane order, a yet unreported disordering behavior in binary mixtures of organic semiconductors, which are crystalline in their pure form. One approach to rationalize our findings is to introduce an anisotropic interaction parameter in the framework of a mean field model. By comparing the structural properties with those of other mixed systems, we discuss the effects of sterical compatibility and chemical composition on the mixing behavior, which adds to the general understanding of interactions in molecular mixtures.

引用

页数：5

共 24 条

[1]

[Anonymous], XRAY DIFFRACTION

[2]

Brabec CJ, 2001, ADV FUNCT MATER, V11, P15, DOI 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO

[3]

2-A

[4] Optical evidence for intermolecular coupling in mixed films of pentacene and perfluoropentacene [J].

Broch, K. ;

Heinemeyer, U. ;

Hinderhofer, A. ;

Anger, F. ;

Scholz, R. ;

Gerlach, A. ;

Schreiber, F. .

PHYSICAL REVIEW B, 2011, 83 (24)

[5]

Brutting W., 2005, Physics of Organic Semiconductors

[6] Organic-Organic Heteroepitaxy of Semiconductor Crystals: α-Quaterthiophene on Rubrene [J].

Campione, Marcello ;

Raimondo, Luisa ;

Moret, Massimo ;

Campiglio, Paolo ;

Fumagalli, Enrico ;

Sassella, Adele .

CHEMISTRY OF MATERIALS, 2009, 21 (20) :4859-4867

[7] Organic-Organic Heterojunction Interfaces: Effect of Molecular Orientation [J].

Chen, Wei ;

Qi, Dong-Chen ;

Huang, Han ;

Gao, Xingyu ;

Wee, Andrew T. S. .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (03) :410-424

[8]

de Gennes P. G., 1993, The Physics of Liquid Crystals, V2nd ed

[9] Molecular structure and growth morphologies of pentacene/fluorinated copper-phthalocyanine heterostructures [J].

de Oteyza, D. G. ;

Barrena, E. ;

Sellner, S. ;

Osso, J. O. ;

Dosch, H. .

THIN SOLID FILMS, 2008, 516 (21) :7525-7529

[10] The path to ubiquitous and low-cost organic electronic appliances on plastic [J].

Forrest, SR .

NATURE, 2004, 428 (6986) :911-918

← 1 2 3 →