کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
746041 894439 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical sensing properties of CoTPP thin films deposited by glow-discharge-induced sublimation
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Optical sensing properties of CoTPP thin films deposited by glow-discharge-induced sublimation
چکیده انگلیسی

Thin porphyrin assemblies, widely used as sensing materials in different kinds of transducers, are usually produced through chemical deposition techniques. In this work a new physical technique named glow-discharge-induced sublimation (GDS) has been employed for the production of cobalt 5,10,15,20 meso-tetraphenyl porphyrin (CoTPP) thin films. For comparison, CoTPP coatings have been also produced by vacuum evaporation and spin coating procedures. The inspection of the surface morphology with a scanning electron microscope evidenced the very high surface roughness of the GDS samples. Optical measurements performed in ethanol-vapour-containing nitrogen flux highlighted that the responses of the GDS films were one order of magnitude more intense than those of the films deposited through spin coating and vacuum evaporation techniques. Moreover, the GDS films exhibited very short response times (t50 = 12 s and t90 = 72 s) and fast and complete recovery.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 122, Issue 2, 26 March 2007, Pages 613–619
نویسندگان
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