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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 43, Number 1
JKCSEZ 43(1)
February 20, 1999 

 
Title
A Study on Photoesnsitization Mechanism of Phthalocyanines with LB Films

LB박막을 이용한 프탈로시아닌의 광증감 기구에 관한 연구
Author
Bum Goo Kim, Young Soon Kim

김범구, 김영순
Keywords
Abstract
프탈로시아닌의 광증감 기구를 연구하기 위하여 가용성 프탈로시아닌, copper(II) 4,5-dicarboxyphthalocyanine[CuPc(COOH)2]와 copper(II) 4,5,4',5'-tetracarboxyphthalocyanine[CuPc(COOH)4]을 합성하였다. 합성된 프탈로시아닌 유도체의 단분자층을 ITO유리기판 위에 LB방법으로 만들었다. CuPc(COOH)2 의 LB단분자층이 CuPc(COOH)4의 막보다 더 규칙적인 배열구조를 가진 시료가 만들어짐을 표면압력-면적 곡선으로써 확인하였고 프탈로시아닌 유도체의 LB단분자층의 광전류를 측정하였더니 규칙적인 배열의 CuPc(COOH)2[imax=20.84nA]가 CuPc(COOH)4[imax=10.50nA]보다 전하발생효율이 거의 두배로 나타나는 결과를 얻었다.

The phthalocyanine(Pc) film can not be prepared by LB method because it is insoluble in organic solvents. In order to increase its solubility, two kinds of copper phthalocyanine derivatives (CuPc(COOH)2 and CuPc(COOH)4) were synthesized and their monolayers were prepared by LB method. It is found from the surface pressure-area curves that the LB monolayer film of CuPc(COOH)2 have more ordered structure than that of CuPc(COOH)4. In the photocurrent characteristic the value Of CuPc(COOH)2 was superior to that of CuPc (COOH)4. Therefore, it is found that the charge generation efficiency for phthalocyanines have influenced on its ordered structure as the functional groups.

Page
58 - 68
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