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Direct fabrication of conductive LB films composed of N ‐docosylpyridinium‐TCNQ
Author(s) -
Yuan ChunWei,
Wu HaiMing,
Xiao Dong,
Wei Yu
Publication year - 1994
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19940120203
Subject(s) - chemistry , x ray photoelectron spectroscopy , valence (chemistry) , conductivity , absorption spectroscopy , molecule , absorption (acoustics) , fabrication , analytical chemistry (journal) , crystallography , chemical engineering , organic chemistry , optics , materials science , composite material , physics , engineering , medicine , alternative medicine , pathology
Langmuir‐Blodgett (LB) films of Ar‐docosylpyridinium‐TCNQ (NDP‐TCNQ) were prepared in air. The films deposited at the room temperature showed in‐plane conductivity of 4·10 −3 S·cm −1 and its absorption spectra in UV and IR regions resembled those for the films composed of mixed‐valence TCNQ salts of NDP‐(TCNQ) 2 rather than for the NDP‐TCNQ LB films preparaed under protection of nitrogen. In the case that the films left in a warm environment after each dipping cycle, the absorption in the corresponding region changed. Spectral analysis and XPS study revealed that more TCNQ molecules were produced. The oxidation of TCNQ: in air was considered to be the origin of neutral TCNQ formed.