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Studies of the electro‐oxidation of carbazole layer in protic acid media with a view to developing light‐emitting diodes
Author(s) -
Clergereaux Richard,
Destruel Pierre,
Farenc Jean,
Pebere Nadine,
Séguy Isabelle
Publication year - 2001
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/1097-0126(200101)50:1<84::aid-pi572>3.0.co;2-a
Subject(s) - tetramer , dielectric spectroscopy , materials science , oligomer , carbazole , ionic bonding , diode , light emitting diode , photochemistry , excited state , fourier transform infrared spectroscopy , perchloric acid , chemical engineering , optoelectronics , analytical chemistry (journal) , chemistry , inorganic chemistry , polymer chemistry , organic chemistry , ion , electrochemistry , electrode , physics , nuclear physics , engineering , enzyme
Electro‐oxidation has been used for fabricating thin film tetracarbazole for organic light‐emitting diode applications. The experimental parameters greatly influence the physical aspect of the tetramer surface. FTIR measurements reveal that the oligomer is a 3,3′‐tetracarbazole (4Cz). Elemental analysis shows that the film is doped by perchloric acid, and contained methanol and water. Impedance spectroscopy indicates that ionic and electronic diffusions increase in the 4Cz film during its formation. When excited by UV light, the tetramer emits blue light. © 2001 Society of Chemical Industry