کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8014183 1517170 2018 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Band gap engineering and photoluminescence studies of imine linked ZnO nanoparticles synthesized by direct precipitation route
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Band gap engineering and photoluminescence studies of imine linked ZnO nanoparticles synthesized by direct precipitation route
چکیده انگلیسی
An imine linked dipodal organic receptor 1 is synthesized using condensation reaction between 2-aminothiophenol and 4-diethylaminosalicylaldehyde which is used as a capping agent over ZnO resulting in surface modified ZnO nanoparticles 1.ZnO. The conjugate 1.ZnO shows emission at 420 nm. The emission spectra obtained from surface modified ZnO nanoparticles is pure and sharp with full width half maximum (FWHM) 60 nm in comparison to emission spectra of pure ZnO which shows emission at 434 nm, 456 nm and 520 nm. It is demonstrated that organic receptor 1 acted as a capping monolayer over ZnO semiconductor as the surface defects that otherwise resulted in electronic transitions has not shown emission at various wavelengths in visible range. Thus the capping agent has successfully passivated the ZnO nanoparticles. The synthesized 1.ZnO nanoparticles can be used in active layer of light emitting diode providing blue emission at 420 nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 218, 1 May 2018, Pages 349-352
نویسندگان
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