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

被引：39

作者：

AMMER, F

PENZKOFER, A

WEIDNER, P

机构：

[1] Naturwissenschaftliche Fakultät II-Physik, Universität Regensburg

来源：

CHEMICAL PHYSICS | 1995年 / 192卷 / 03期

关键词：

D O I：

10.1016/0301-0104(94)00388-Q

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 concentration dependent fluorescence quantum efficiency phi(F) and fluorescence polarization P-F of rhodamine 6G (10(-5) 5 to 0.8 mol/dm(3)) and oxazine 750 (10(-5) to 0.01 mol/dm(3)) in porous silicate xerogel monoliths have been studied. The xerogel pores were filled with formamide. The decrease of phi(F) is due to Forster-type energy transfer to closely spaced pair quenching centers, and the decrease of P-F is caused by reorientation of emission transition dipole moments due to energy transfer from excited to unexcited molecules.

引用

页码：325 / 331

页数：7

共 42 条

[1] THE NATURE OF THE SILICA CAGE AS REFLECTED BY SPECTRAL CHANGES AND ENHANCED PHOTOSTABILITY OF TRAPPED RHODAMINE-6G
AVNIR, D
LEVY, D
REISFELD, R
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (24) : 5956 - 5959
[2] RELATIONS BETWEEN FLUORESCENCE AND ABSORPTION PROPERTIES OF ORGANIC MOLECULES
BIRKS, JB
DYSON, DJ
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 275 (1360) : 135 - +
[3] OPTICALLY-ACTIVE DOPED XEROGEL
CANVA, M
GEORGES, P
LESAUX, G
BRUN, A
CHAPUT, F
BOILOT, JP
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 : 627 - 630
[4] Capozzi C.A., 1988, SPIE, V970, P135
[5] DUARTE FJ, 1994, P INT C LAS 93, P400
[6] FLEMMIG GR, 1986, CHEM APPLICATIONS UL
[7] Forster T, 1965, MODERN QUANTUM CHE 3, V3, P93
[8] F÷rster Theodor., 1950, FLUORESZENZ ORGANISC
[9] GRAY DE, 1972, AM I PHYSICS HDB, P6
[10] THE SOL-GEL PROCESS
HENCH, LL
WEST, JK
[J]. CHEMICAL REVIEWS, 1990, 90 (01) : 33 - 72

← 1 2 3 4 5 →