کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9676018 | 1454111 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel photoactive self-assembled rigid monolayer of a perylene derivative: fabrication and characterization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
A novel rigid self-assembled monolayer derived from a perylene derivative, 3,4,9,10-perylene tetracarboxylic acid, was prepared on hydroxyl-bearing surfaces via an ester bond-linkage. Contact angle measurements, UV-visible spectra, cyclic voltammetry and atomic force microscopy characterization showed that densely packed, well-ordered monolayer was formed at the ITO and mica substrates. The as-grown PTA SAM was photoactive, as characterized by steady anodic photocurrent generation from the PTA monolayer modified ITO in a three-electrode photoelectrochemical cell upon illumination with the presence of electron sacrificer electrode in the electrolyte. The agreement of the photoaction spectrum with optical absorption spectrum demonstrates that the PTA dye-aggregate within the SAM is responsible for the photocurrent generation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volumes 257â258, 5 May 2005, Pages 489-495
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volumes 257â258, 5 May 2005, Pages 489-495
نویسندگان
Wenlong Wang, Jin Zhai, Lei Jiang, Fenglian Bai, Yanjie Ren, Bo Zhang, Shengmin Cai,