کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1442430 1509451 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stable blue-emitting molecular material derived from calix[4]arene and pyrazoline: Synthesis, optical and electrochemical properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Stable blue-emitting molecular material derived from calix[4]arene and pyrazoline: Synthesis, optical and electrochemical properties
چکیده انگلیسی

A novel blue-emitting molecular material derived from calix[4]arene and pyrazoline was designed and synthesized. Its photophysical properties were investigated in CHCl3 solution and solid film by UV–vis and photoluminescent (PL) spectra. The maximum peaks are almost at the same positions both in UV–vis and PL spectra indicated that the grafted pyrazoline on calix[4]arene by chemical bond can help to disperse emitting pyrazoline chromophores in host material of calix[4]arene and tend to reduce the interaction of each pyrazoline molecule. Light-emitting diodes (LEDs) using this material as active layer were fabricated by a wet process. The turn-on voltage of the typical LED based on calix[4]arene-pyrazoline was about 6.6 V, and the maximum EL efficiency of the device was determined to be 1.52%. The homogeneous film based the resulting material was obtained even after keeping for three months. The primary results indicate that this novel material is a promising candidate as pure blue and stable light-emitting material for display.

A novel blue-emitting material derived from calix[4]arene and pyrazoline was designed and synthesized. Its photophysical properties indicated that the grafted pyrazoline on calix[4]arene by chemical bond can help to disperse emitting pyrazoline chromophores in host material of calix[4]arene and tend to reduce the interaction of each pyrazoline molecule. The primary LED results indicate that this novel material is a promising candidate as pure blue and stable light-emitting material for display.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 159, Issues 19–20, October 2009, Pages 1944–1949
نویسندگان
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