Structural and Optical Properties of Mixed Diindenoperylene-Perfluoropentacene Thin Films

被引：20

作者：

Reinhardt, J. P. ^{[1
]}

Hinderhofer, A. ^{[1
,2
]}

Broch, K. ^{[1
]}

Heinemeyer, U. ^{[1
]}

Kowarik, S. ^{[3
]}

Vorobiev, A. ^{[4
]}

Gerlach, A. ^{[1
]}

Schreiber, F. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Appl Phys, Tubingen, Germany

[2] Chiba Univ, Grad Sch Adv Integrat Sci, Chiba, Japan

[3] Humboldt Univ, Inst Phys, D-10099 Berlin, Germany

[4] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 20期

关键词：

X-RAY; GROWTH; PENTACENE; HETEROSTRUCTURES; TRANSITION; MORPHOLOGY; ANISOTROPY; AG(111); PHASE; ORDER;

D O I：

10.1021/jp211947y

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：

Mixed films of perfluorinated pentacene and diindenoperylene are studied for their structural and optical properties on SiO2 and glass substrates. Grazing incidence Xray diffraction shows that the compounds mix on the molecular level, Two structures are identified. Their out-of-plane lattice spacing is determined by X-ray reflectivity, and their growth morphology is characterized using atomic force microscopy. It is found that one structure consists of molecules in a standing-up and the other in a lying-down orientation. The uniaxial dielectric function of mixed films is determined with spectroscopic ellipsometry, and the in-plane optical extinction coefficient is measured by real-time differential reflectance spectroscopy during growth. The question of intermolecular coupling between perfluorinated pentacene and diindenoperylene is discussed.

引用

页码：10917 / 10923

页数：7

共 56 条

[1] Photoluminescence spectroscopy of pure pentacene, perfluoropentacene, and mixed thin films [J].