PHOTOPHYSICAL PROCESSES OF PYRENE ADSORBED ONTO POROUS GLASSES - IMPORTANCE OF EVACUATION TEMPERATURE

被引：5

作者：

FUJII, T ^{[1
]}

ISHII, A ^{[1
]}

SATOZONO, H ^{[1
]}

SUZUKI, S ^{[1
]}

TAKUSAGAWA, N ^{[1
]}

ANPO, M ^{[1
]}

机构：

[1] UNIV OSAKA PREFECTURE,COLL ENGN,DEPT APPL CHEM,SAKAI,OSAKA 593,JAPAN

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1994年 / 84卷 / 03期

关键词：

D O I：

10.1016/1010-6030(94)03876-7

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 effect of the evacuation temperature used to remove residual solvent (cyclohexane) on the fluorescence spectrum and fluorescence decay curve of pyrene adsorbed on porous glass (average diameters, 40 Angstrom and 300 Angstrom; PG40 and PG300) was investigated. The ''growing-in'' phenomenon in the initial stage of the decay curve was observed for PG300 evacuated at temperatures (338 K) fewer than the boiling temperature of cyclohexane (353 K), However, this phenomenon was not observed for PG300 evacuated at temperatures (373 K) higher than the boiling temperature of cyclohexane and for all PG40 specimens. Thus the evacuation temperature after adsorption plays an important role in the photophysical properties of pyrene molecules and determines whether or not they form excimer-like conformations on the surfaces.

引用

页码：283 / 290

页数：8

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