✦ LIBER ✦

Red shift in optical absorption of erbium and dysprosium diphthalocyanine thin films on exposure to chlorine

✍ Scribed by A. Krier; T. Parr; K. Davidson; R. A. Collins

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 402 KB
Volume: 6
Category: Article
ISSN: 1616-301X
DOI: 10.1002/(sici)1099-0712(199607)6:4<203::aid-amo241>3.0.co;2-#

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✦ Synopsis

The optical absorption characteristics of vacuum-deposited thin films of erbium and dysprosium diphthalocyanlne were investigated using transmission spectroscopy before and after exposure to chlorine gas and compared with previous work performed upon lead monophthalocyanine (PbPc). Considerable red shifts in the visible absorption spectra were observed after CI, exposure for the diphthalocyanines but not for the monophthalocyanine. These were interpreted on the basis of differences in molecular structure in relation to the adsorption of chlorine.