کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5363041 1388296 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of clean laser transfer for porphyrin micropatterning
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Application of clean laser transfer for porphyrin micropatterning
چکیده انگلیسی
Blister-based laser-induced forward transfer is proposed as a promising tool for clean, cold and liquid-free local transfer of various organic substances. The feature of the given technique is non-destructive local deformation of an absorbing metal film on a transparent support avoiding the metal sputtering. Application of the blister-based laser transfer of a Langmuir film to fabricate mesotetraphenylporphyrin micropatterns on a silica substrate has been demonstrated. The metal film thickness is found to be a key parameter, which determines the laser fluence range allowing the clean transfer, predominant mechanism of the blister formation and laser-induced heating of the transferred material. According to the numerical modelling confirmed by UV-vis absorption spectroscopy, the target with 1.5 μm thick titanium film provides negligible heating of the porphyrin transferred by 5 ns laser pulses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 9, 15 February 2010, Pages 2803-2808
نویسندگان
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