کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
746516 894461 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Color characteristics of mechanochromic photonic bandgap composites
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Color characteristics of mechanochromic photonic bandgap composites
چکیده انگلیسی

Actively modulating the interparticle lattice constant and/or refractive index contrast of a three-dimensional dielectric structure which exhibits a periodicity comparable to the wavelength of light can result in a variation of the optical diffraction properties. Achieving this modulation with an imposed strain is refereed to as mechanochromism. The color characteristics of opalescent elastomeric films composed of colloidal crystals have been studied at various strain states. These elastomeric photonic bandgap composites exhibit rejection wavelength shifts of over 200 nm and reflected colors that are characterized by color purities ranging from 0.52 to 0.86 and dominant wavelengths ranging from 597 nm to 464 nm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 137, Issue 2, 2 April 2009, Pages 574–577
نویسندگان
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