Low thresholds for a nonconventional polymer blend—Amplified spontaneous emission and lasing in F81−x:SYx system |
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| Authors: | Haider Butt Kamran ul Hasan Jui‐Fen Chang Ayooye Abigael Olawoyin Richard Henry Friend |
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| Institution: | 1. Microengineering and Nanotechnology Laboratory, School of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom;2. Department of Science and Technology, Campus Norrk?ping, Link?ping University, Norrk?ping, Sweden;3. Department of Optics and Photonics, National Central University, Chung‐Li, Taiwan;4. Center for Micro and Nano Devices, COMSATS Institute Information Technology, Islamabad, Pakistan |
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| Abstract: | A mixture of two polymer materials, poly (9,9‐dioctylfluorene) (F8), and one of the poly(para‐phenylenevinylene) derivatives, superyellow (SY) have been used to make F81?x:SYx polymer blend system. Under a 3–5 ns pulsed‐laser excitation, this system showed excellent optical properties with low threshold values of ≈14 µJ/cm2 and ≈8 µJ/cm2 for amplified spontaneous emission and optically pumped lasing, respectively. The proposed system was also electroluminescent and an interesting candidate for future research on polymer injection lasers. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016 , 54, 15–21 |
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| Keywords: | amplified spontaneous emission low threshold optical pumping polymer blend |
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