کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1812498 1025617 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characteristics of ZnS nanocolumn arrays and their effect on the light outcoupling of OLEDs
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Characteristics of ZnS nanocolumn arrays and their effect on the light outcoupling of OLEDs
چکیده انگلیسی

Wide band gap semiconductor zinc sulfide (ZnS) nanocolumn arrays were prepared on the glass side of ITO substrates by glancing angle deposition (GLAD) technology. The SEM images show the formation of ZnS nanocolumn arrays when the glancing angle was set to 80°; however, continuous ZnS thin films were fabricated under normal deposition (0°). The XRD spectra of the films show that the most intensive diffraction peak changed from (2 2 0) to (1 1 1) when the incidence angle was set to 0° and 80°. The transmitting ability of ITO substrate coated with ZnS nanocolumn arrays was enhanced compared with continuous ZnS thin films coated ITO substrate and bare ITO substrate in the visible range. Organic light emitting diodes (OLEDs) were simultaneously fabricated on these three kinds of substrates. The electroluminescence (EL) intensity of OLEDs based on the ITO substrate coated with ZnS nanocolumn arrays was about 1.3 times bigger than that of devices based on the other substrates (continuous ZnS film coated ITO substrates and bare ITO substrates) under the same driving voltage.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 405, Issue 17, 1 September 2010, Pages 3728–3731
نویسندگان
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