Optical response of C-60 thin films and solutions

被引：53

作者：

Hora, J ^{[1
]}

Panek, P ^{[1
]}

Navratil, K ^{[1
]}

Handlirova, B ^{[1
]}

Humlicek, J ^{[1
]}

Sitter, H ^{[1
]}

Stifter, D ^{[1
]}

机构：

[1] JOHANNES KEPLER UNIV,INST EXPT PHYS,A-4040 LINZ,AUSTRIA

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.54.5106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the optical spectra of C-60 epitaxial films on mica with various thicknesses in the energy range from 1.4 eV to 6 eV, and for temperatures from 13 K to 300 K. The transmittance of toluene, hexane, and heptane solutions of known concentrations has also been studied; a significant shift of the absorption bands in these solvents has been found. We fitted our spectra with Gauss-Lorentz (CL) line shapes to determine the energy positions, oscillator strengths, and widths of individual transitions. It has been found that the GL profiles excellently approximate the optical response. We compare the dielectric function of solid and molecular C-60 in detail, with special attention paid to the assignment of the forbidden and the lowest allowed transitions.

引用

页码：5106 / 5113

页数：8

共 32 条

[1] COLLECTIVE PLASMON EXCITATIONS IN C60 CLUSTERS [J].

BERTSCH, GF ;

BULGAC, A ;

TOMANEK, D ;

WANG, Y .

PHYSICAL REVIEW LETTERS, 1991, 67 (19) :2690-2693

[2]

BETHUNE DS, 1990, CHEM PHYS LETT, V170, P167

[3]

BRAGA M, 1991, ASTRON ASTROPHYS, V245, P232

[4] FULLERENES [J].

DRESSELHAUS, MS ;

DRESSELHAUS, G ;

EKLUND, PC .

JOURNAL OF MATERIALS RESEARCH, 1993, 8 (08) :2054-2097

[5] HIGH-RESOLUTION ELECTRON-ENERGY-LOSS SPECTROSCOPY OF THIN-FILMS OF C60 ON SI(100) [J].

GENSTERBLUM, G ;

PIREAUX, JJ ;

THIRY, PA ;

CAUDANO, R ;

VIGNERON, JP ;

LAMBIN, P ;

LUCAS, AA ;

KRATSCHMER, W .

PHYSICAL REVIEW LETTERS, 1991, 67 (16) :2171-2174

[6]

HADJIEV VG, UNPUB

[7] OPTICAL-ABSORPTION SPECTRA IN FULLERENES C(60) AND C(70) - EFFECTS OF COULOMB INTERACTIONS, LATTICE FLUCTUATIONS, AND ANISOTROPY [J].

HARIGAYA, K ;

ABE, S .

PHYSICAL REVIEW B, 1994, 49 (23) :16746-16752

[8] STRUCTURE, DYNAMICS AND ORDERING TRANSITION OF SOLID C-60 [J].

HEINEY, PA .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1992, 53 (11) :1333-1352

[9]

HELLWEGE KH, 1962, OPTISCHE KONSTANTE 8

[10] OPTICALLY DETECTED LIBRONS AND PHONONS IN CRYSTALLINE C-60 [J].

HOROYSKI, PJ ;

THEWALT, MLW .

PHYSICAL REVIEW B, 1993, 48 (15) :11446-11449

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