Sensitized photolysis and intercalation of PbI2 by anilines and ammonia

✍ Scribed by G.I. Gurina; K.V. Savchenko

• Book ID: 103992512
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 341 KB
• Volume: 86
• Category: Article
• ISSN: 1010-6030
• DOI: 10.1016/1010-6030(94)03937-p

✦ Synopsis

The kinetics of PbI2 photolysis sensitized by para-substituted aniline were studied by reflectivity measurements. Photolysis and PbI2 intercalation are overlapping processes at aniline concentrations exceeding the intercalation threshold, leading to a ,iecrease in the efficiency of photolysis. Linear Hammett-type correlations between the logarithm of the photolysis rate constants, he average shifts of the IR absorption bands of the N-H bond after intercalation and the Hammett constants ap* allow the ,,imilarity between the photolysis and intercalation mechanisms to be determined. The effect of ammonia concentration changes , m the photoconductivity of PbI2 thin films was ascertained.