Absorption and emission spectroscopic characterization of platinum-octaethyl-porphyrin (PtOEP)

被引：155

作者：

Bansal, A. K.

Holzer, W.

Penzkofer, A.

Tsuboi, Taiju

机构：

[1] Univ Regensburg, Inst Expt & Angew Phys 2, D-93053 Regensburg, Germany

[2] Kyoto Sangyo Univ, Fac Engn, Kita Ku, Kyoto 6038555, Japan

来源：

CHEMICAL PHYSICS | 2006年 / 330卷 / 1-2期

基金：

日本学术振兴会;

关键词：

organometallic complex; PtOEP; platinum-octaethyl-porphyrin; doped film; neat film; liquid solutions; phosphorescence quantum yield; phosphorescence lifetime; singlet-triplet absorption; stimulated emission cross-section; triplet-triplet annihilation; amplified spontaneous emission;

D O I：

10.1016/j.chemphys.2006.08.002

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：

The absorption and. emission spectroscopic behaviour of the platinum complexed porphyrin PtOEP (platinum-octaethyl-porphyrin) is studied at room temperature. Liquid solutions, doped films, and a neat film are investigated. The absorption cross-section spectra including singlet-triplet absorption, the triplet-singlet stimulated emission cross-section spectra, the phosphorescence quantum distributions, the phosphorescence quantum yields, and the phosphorescence signal decays are determined. In the neat film a red-shifted phosphorescent excimer emission is observed. In diluted solid solution (polystyrene and dicarbazole-biphenyl films) as well as in de-aerated liquid solutions (tetrahydrofuran, toluene, chloroform) high phosphorescence quantum yields are obtained. In air-saturated liquid solutions, the phosphorescence efficiency :is reduced by oxygen quenching. At intense short-pulse laser excitation the phosphorescence lifetime is shortened by triplet-triplet annihilation. No amplification of spontaneous emission was observed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：118 / 129

页数：12

共 100 条

[1] High efficiency single dopant white electrophosphorescent light emitting diodes [J].

Adamovich, V ;

Brooks, J ;

Tamayo, A ;

Alexander, AM ;

Djurovich, PI ;

D'Andrade, BW ;

Adachi, C ;

Forrest, SR ;

Thompson, ME .

NEW JOURNAL OF CHEMISTRY, 2002, 26 (09) :1171-1178

[2]

Amao Y, 2000, POLYM ADVAN TECHNOL, V11, P705, DOI 10.1002/1099-1581(200008/12)11:8/12<705::AID-PAT23>3.0.CO

[3]

2-L

[4]

Amao Y, 2000, J PORPHYR PHTHALOCYA, V4, P292, DOI 10.1002/(SICI)1099-1409(200004/05)4:3<292::AID-JPP216>3.0.CO

[5]

2-W

[6] CONCENTRATION-DEPENDENT FLUORESCENCE BEHAVIOR OF OXAZINE-750 AND RHODAMINE-6G IN POROUS SILICATE XEROGEL MONOLITHS [J].

AMMER, F ;

PENZKOFER, A ;

WEIDNER, P .

CHEMICAL PHYSICS, 1995, 192 (03) :325-331

[7]

Atkins P. W., 1982, PHYS CHEM

[8] Phosphorescence as a probe of exciton formation and energy transfer in organic light emitting diodes [J].

Baldo, M ;

Segal, M .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (06) :1205-1214

[9] Phosphorescent materials for application to organic light emitting devices [J].

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

PURE AND APPLIED CHEMISTRY, 1999, 71 (11) :2095-2106

[10] Transient analysis of organic electrophosphorescence. II. Transient analysis of triplet-triplet annihilation [J].

Baldo, MA ;

Adachi, C ;

Forrest, SR .

PHYSICAL REVIEW B, 2000, 62 (16) :10967-10977

← 1 2 3 4 5 6 7 8 9 10 →