کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1595089 | 1515707 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of electric field on the photoluminescence of polymer-inorganic nanoparticle composites
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of electric field on the photoluminescence of polymer-inorganic nanoparticle composites Effect of electric field on the photoluminescence of polymer-inorganic nanoparticle composites](/preview/png/1595089.png)
چکیده انگلیسی
We report on the effect of electric field on the photoluminescence (PL) from a composite consisting of a BEHP-co-MEH-PPV conjugated polymer mixed with ZnO nanoparticles. We have found that in the absence of electric field PL emission from the BEHP-co-MEH-PPV-ZnO composite has two maxima in the blue and green-yellow regions. Application of a voltage bias to planar gold electrodes suppresses the green yellow emission and shifts the only PL emission maximum towards the blue region. Current-voltage characteristics of the BEHP-co-MEH-PPV-ZnO composite exhibit the nonlinear behaviour typical of nonhomogeneous polymer-inorganic structures. Generation of excited states in the BEHP-co-MEH-PPV-ZnO structure implies the presence of several radiative recombination mechanisms including formation of polymer-nanoparticle complexes including “exciplex” states and charge transfer between the polymer and nanoparticle that can be controlled by an electric field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 146, Issues 3â4, April 2008, Pages 161-165
Journal: Solid State Communications - Volume 146, Issues 3â4, April 2008, Pages 161-165
نویسندگان
Andrey N. Aleshin, Igor P. Shcherbakov, Elena L. Alexandrova, Energue A. Lebedev,