Influence of transfer promoters on the deposition and wettability characteristics of copper tetra-tert-butyl phthalocyanine Langmuir-Blodgett films

I. Hsun Ku, Yuh Lang Lee, Chien Hsiang Chang, Yu Min Yang, Jer Ru Maa

研究成果: Article

13 引文 斯高帕斯(Scopus)

摘要

This study investigated the influence of three transfer promoters on the deposition and wettability characteristics of copper tetra-tert-butyl phthalocyanine (CuTTBPc) Langmuir-Blodgett (L-B) films. With the addition of transfer promoters, such as stearyl alcohol, stearamide, and arachidic acid, two transitions corresponding to monolayer collapse were observed in the surface pressure-area isotherms of mixed CuTTBPc/transfer promoter monolayers at the air/water interface. Nevertheless, the expected enhanced stability of a CuTTBPc monolayer in the presence of transfer promoters did not reflect in the monolayer area relaxation curves obtained at constant surface pressures. The transfer ratio for the deposition of a CuTTBPc L-B film on a glass substrate was close to one, and thus the addition of transfer promoters showed little improvement in the deposition. On a gold-coated glass substrate, however, the deposition of a CuTTBPc L-B film was considerably improved by the existence of arachidic acid. Surprisingly, the deposition was not improved with the addition of stearyl alcohol or stearamide. Moreover, the presence of transfer promoters did not show significant influence on the wettability characteristics of the mixed CuTTBPc/transfer promoter L-B films on glass or gold-coated glass substrates except for the case of arachidic acid.

原文English
頁(從 - 到)223-231
頁數9
期刊Colloids and Surfaces A: Physicochemical and Engineering Aspects
191
發行號3
DOIs
出版狀態Published - 2001 十一月 15

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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