PHOTOPHYSICS STUDIES OF ORGANIC COMPOUNDS Ⅷ. INVESTIGATION ON THE GROUND STATE DIMER AND EXCIMER FORMATION OF CETYL β-NAPHTHOATE IN L-B FILMS

doi:10.7517/j.issn.1674-0475.1991.01.29

Imaging Science and Photochemistry ›› 1991, Vol. 9 ›› Issue (1): 29-35.DOI: 10.7517/j.issn.1674-0475.1991.01.29

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PHOTOPHYSICS STUDIES OF ORGANIC COMPOUNDS Ⅷ. INVESTIGATION ON THE GROUND STATE DIMER AND EXCIMER FORMATION OF CETYL β-NAPHTHOATE IN L-B FILMS

MA XIAO-DONG¹, ZHU ZHI-QANG¹, CHEN FENG-QI², TUNG ZHEN-HO², FAN MEI-GONG²

1. Department of Physics, Henan University, Kaifeng 475001, P.R. China;
2. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P.R. China

Received:1989-04-10 Revised:1990-06-12 Online:1991-02-20 Published:1991-02-20

Abstract

Abstract: The different types of cetyl β-naphthoate (NACE) molecule films were prepared by the Langmuir-Blodgett technique. The absorption and fluorescence spectra of the films were investigated. In chloroform solution and solid state of NACE monomer fluorescence was observed. The fluorescence of excimer and excited dimer of NACE were also observed, besides the monomer fluorescence, in L-B films. It was found that the environment of the hydrophilic region in L-B films is changed when the films are processed with heat and water. This makes that the chemical and physical properties of hydrophilic groups in hydrophilic region were changed. The formation mechanism of the ground state dimer and excimer of NACE in L-B films was supposed.

Key words: Cetyl β-naphthoat, L-B Film, Dimer, Excimer, Photophysics

MA XIAO-DONG, ZHU ZHI-QANG, CHEN FENG-QI, TUNG ZHEN-HO, FAN MEI-GONG. PHOTOPHYSICS STUDIES OF ORGANIC COMPOUNDS Ⅷ. INVESTIGATION ON THE GROUND STATE DIMER AND EXCIMER FORMATION OF CETYL β-NAPHTHOATE IN L-B FILMS[J]. Imaging Science and Photochemistry, 1991, 9(1): 29-35.

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PHOTOPHYSICS STUDIES OF ORGANIC COMPOUNDS Ⅷ. INVESTIGATION ON THE GROUND STATE DIMER AND EXCIMER FORMATION OF CETYL β-NAPHTHOATE IN L-B FILMS

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