fa Full range of Emission colours from Polymeric Light-Emitting Diodes تخصصی Special پژوهشي Research We demonstrate the fabrication of organic light-emitting diodes (OLED) with various emission colours by blending and/or doping the polymer host matrix with different dopants. We firstly present the preparation of elementary OLEDs i.e. blue, green, orange, and cool white diodes. Then, we exhibit the fabrication of light-emitting devices with particular emission colours such as magenta, red, and warm white electroluminescence. Blue emission from polyfluorene (PFO), green emission from polyfluorene-alt-benzothiadiazole (F8BT), and orange emission from polyphenylene-vinylene (MEH-PPV), together with the red emission from Lumogen F Red have been mixed in different combination to vary the emission colour in OLEDs. We demonstrate the fabrication of organic light-emitting diodes (OLED) with various emission colours by blending and/or doping the polymer host matrix with different dopants. We firstly present the preparation of elementary OLEDs i.e. blue, green, orange, and cool white diodes. Then, we exhibit the fabrication of light-emitting devices with particular emission colours such as magenta, red, and warm white electroluminescence. Blue emission from polyfluorene (PFO), green emission from polyfluorene-alt-benzothiadiazole (F8BT), and orange emission from polyphenylene-vinylene (MEH-PPV), together with the red emission from Lumogen F Red have been mixed in different combination to vary the emission colour in OLEDs. OLED, white organic light-emitting diode, polyfluorene, blending/doping, solid-state lighting OLED, white organic light-emitting diode, polyfluorene, blending/doping, solid-state lighting 1623 1626 http://opsi.ir/browse.php?a_code=A-10-1-810&slc_lang=fa&sid=1 Mohammad-Reza Fathollahi Mohammad-Reza Fathollahi m.r.fathollahi@gmail.com 10031947532846003825 10031947532846003825 Yes Laser and Plasma Research Institute of Shahid Beheshti University Laser and Plasma Research Institute of Shahid Beheshti University Tirdad Barghi Tirdad Barghi tirdad.barghi@gmail.com 10031947532846003826 10031947532846003826 No Faculty of Electrical and Computer Engineering of Shahid Beheshti University Faculty of Electrical and Computer Engineering of Shahid Beheshti University Ali Beirami Ali Beirami alibeirami@gmail.com 10031947532846003827 10031947532846003827 No Faculty of Electrical and Computer Engineering of K. N. Toosi University of Technology Faculty of Electrical and Computer Engineering of K. N. Toosi University of Technology Hesam Moradinejad Hesam Moradinejad h.moradinejad@gatech.edu 10031947532846003828 10031947532846003828 No Department of Electrical and Computer Engineering of Georgia Institute of Technology Department of Electrical and Computer Engineering of Georgia Institute of Technology Farhad Akbari Boroumand Farhad Akbari Boroumand boroumand@eetd.kntu.ac.ir 10031947532846003829 10031947532846003829 No Faculty of Electrical and Computer Engineering of K. N. Toosi University of Technology Faculty of Electrical and Computer Engineering of K. N. Toosi University of Technology Ezzedin Mohajerani Ezzedin Mohajerani e-mohajerani@sbu.ac.ir 10031947532846003830 10031947532846003830 No Laser and Plasma Research Institute of Shahid Beheshti University Laser and Plasma Research Institute of Shahid Beheshti University