کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
606125 1454513 2016 6 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Rapid electrostatics-assisted layer-by-layer assembly of near-infrared-active colloidal photonic crystals
ترجمه فارسی عنوان
مونتاژ لایه ی لایه ی متشکل از الکتروستاتیک سریع از بلورهای فوتونی کولئیدی فعال نزدیک به مادون قرمز
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی

Here we report a rapid and scalable bottom-up technique for layer-by-layer (LBL) assembling near-infrared-active colloidal photonic crystals consisting of large (⩾1 μm) silica microspheres. By combining a new electrostatics-assisted colloidal transferring approach with spontaneous colloidal crystallization at an air/water interface, we have demonstrated that the crystal transfer speed of traditional Langmuir-Blodgett-based colloidal assembly technologies can be enhanced by nearly 2 orders of magnitude. Importantly, the crystalline quality of the resultant photonic crystals is not compromised by this rapid colloidal assembly approach. They exhibit thickness-dependent near-infrared stop bands and well-defined Fabry-Perot fringes in the specular transmission and reflection spectra, which match well with the theoretical calculations using a scalar-wave approximation model and Fabry-Perot analysis. This simple yet scalable bottom-up technology can significantly improve the throughput in assembling large-area, multilayer colloidal crystals, which are of great technological importance in a variety of optical and non-optical applications ranging from all-optical integrated circuits to tissue engineering.

A rapid and scalable bottom-up technology has been developed for layer-by-layer assembling near-infrared-active colloidal photonic crystals consisting of micrometer-scale silica microspheres. This new electrostatics-assisted approach can enhance the crystal transfer speed of traditional Langmuir-Blodgett-based colloidal assembly technologies by nearly 2 orders of magnitude.Figure optionsDownload high-quality image (94 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 482, 15 November 2016, Pages 89–94
نویسندگان
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