کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1670191 | 1008896 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A morphologically stable host material for efficient phosphorescent green and red organic light emitting devices
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A morphologically stable host material for efficient phosphorescent green and red organic light emitting devices A morphologically stable host material for efficient phosphorescent green and red organic light emitting devices](/preview/png/1670191.png)
چکیده انگلیسی
A carbazole-based host material, 4,4′-N,N′-[di(3, 6-di(t-butyl)carbazole]biphenyl (ttbCBP), with four t-butyl steric spacers on peripheral carbazole moieties was effectively synthesized through Friedel–Crafts Alkylation. Owing to the presence of sterically hindered t-butyl groups, ttbCBP exhibits a high glass transition temperature (175 °C) and is morphologically stable. This host material also preserves the characteristics of wide band-gap of 3.2 eV and high triplet energy of 2.64 eV. In addition, ttbCBP has been shown to be effective hosts for green and red phosphorescent emitters in organic electrophosphorescent devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 517, Issue 2, 28 November 2008, Pages 943–947
Journal: Thin Solid Films - Volume 517, Issue 2, 28 November 2008, Pages 943–947
نویسندگان
Meng-Huan Ho, Banumathy Balaganesan, Ta-Ya Chu, Teng-Ming Chen, Chin H. Chen,