Optical properties of pentacene thin films and single crystals

被引：102

作者：

Faltermeier, Daniel ^{[1
]}

Gompf, Bruno ^{[1
]}

Dressel, Martin ^{[1
]}

Tripathi, Ashutosh K. ^{[1
]}

Pflaum, Jens ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Phys, D-70550 Stuttgart, Germany

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.74.125416

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optical properties of pentacene single crystals and thin films are systematically investigated by variable angle spectroscopic ellipsometry. In combination with x-ray diffraction and atomic force microscopy the method allows us to distinguish between the complex optical constants (n and k) of the different polymorphs formed in thin films during the growth process. On the biaxial anisotropic single crystal it is possible to determine the optical constants along the respective crystallographic orientations. Temperature-dependent measurements in the range from T=5 K to 350 K confirm the assignment of the optical spectra. The results are in good agreement with ab initio calculations of the optical properties of solid pentacene by Tiago [Phys. Rev. B. 67, 115212 (2003)].

引用

页数：6

共 25 条

[1] Optical properties of anisotropic materials: an experimental approach [J].

Alonso, MI ;

Garriga, M .

THIN SOLID FILMS, 2004, 455 :124-131

[2] Anisotropic optical properties of single crystalline PTCDA studied by spectroscopic ellipsometry [J].

Alonso, MI ;

Garriga, M ;

Karl, N ;

Ossó, JO ;

Schreiber, F .

ORGANIC ELECTRONICS, 2002, 3 (01) :23-31

[3] Excitonic photoluminescence in pentacene single crystal [J].

Aoki-Matsumoto, T ;

Furuta, K ;

Yamada, T ;

Moriya, H ;

Mizuno, K ;

Matsui, AH .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2001, 15 (28-30) :3753-3756

[4]

Born M., 1999, PRINCIPLES OPTICS

[5] Morphology identification of the thin film phases of vacuum evaporated pentacene on SIO2 substrates [J].

Bouchoms, IPM ;

Schoonveld, WA ;

Vrijmoeth, J ;

Klapwijk, TM .

SYNTHETIC METALS, 1999, 104 (03) :175-178

[6] Organic single-crystal field-effect transistors [J].

de Boer, RWI ;

Gershenson, ME ;

Morpurgo, AF ;

Podzorov, V .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (06) :1302-1331

[7] Organic thin-film transistors: A review of recent advances [J].

Dimitrakopoulos, CD ;

Mascaro, DJ .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 2001, 45 (01) :11-27

[8] Ab initio calculation of electron effective masses in solid pentacene -: art. no. 113709 [J].

Doi, K ;

Yoshida, K ;

Nakano, H ;

Tachibana, A ;

Tanabe, T ;

Kojima, Y ;

Okazaki, K .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (11)

[9] Band electronic structure of one- and two-dimensional pentacene molecular crystals [J].

Haddon, RC ;

Chi, X ;

Itkis, ME ;

Anthony, JE ;

Eaton, DL ;

Siegrist, T ;

Mattheus, CC ;

Palstra, TTM .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (33) :8288-8292

[10] Extrinsic optical recombination in pentacene single crystals: Evidence of gap states [J].

He, R ;

Chi, X ;

Pinczuk, A ;

Lang, DV ;

Ramirez, AP .

APPLIED PHYSICS LETTERS, 2005, 87 (21) :1-3

← 1 2 3 →