کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6584661 | 456358 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Particle size controlled synthesis of CdS nanoparticles on a microfluidic chip
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Controlling the particle size of semiconductors can alter their optical and electronic properties for many applications. Semiconductor nanoparticles with controlled size can be synthesized using the colloidal chemical method. In this study, we used the aqueous colloidal method to synthesize CdS nanoparticles in picoliter droplets generated by a microfluidic device. The microfluidic device used two mechanical cutting valves to generate two different droplets containing precursors (aqueous solution of cadmium chloride (CdCl2) and sodium sulfide (Na2S)). The fusion of these two droplets yielded CdS nanoparticles whose sizes were controlled by 3-Mercaptopropionic acid (MPA), a particle growth inhibitor and stabilizer. We synthesized CdS nanoparticles with narrow size distribution and investigated the effects of precursor concentration and S2â:Cd2+ molar ratio on particle growth. This microfluidic method is capable of easily tuning the reagent concentrations to synthesize nanoparticles in a highly controlled manner.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 280, 15 November 2015, Pages 385-390
Journal: Chemical Engineering Journal - Volume 280, 15 November 2015, Pages 385-390
نویسندگان
Jing Dai, Xiaoyun Yang, Morgan Hamon, Lingzhao Kong,