Enhanced electrochromic absorption in Ag nanoparticle embedded conjugated polymer composite films |
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| Institution: | 1. Department of Chemical Engineering, University of Patras, 26500 Patras, Greece;2. FORTH/ICE-HT, P.O. Box 1414, 26504 Patras, Greece;1. Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, Shanxi Normal University, Linfen, 041004, China;2. The School of Chemical and Material Science, Shanxi Normal University, No. 1, Gongyuan Street, Linfen, 041004, China;1. Al Imam Mohammad Ibn Saud Islamic University (IMISU), College of Science, Committee on Radiation and Environmental Pollution Protection, Riyadh, Saudi Arabia;2. Al Imam Mohammad Ibn Saud Islamic University (IMISU), College of Science, Chemistry Department, P.O. Box 90950, Riyadh 11623, Saudi Arabia;3. Al Imam Mohammad Ibn Saud Islamic University (IMISU), College of Science, Physics Department, P.O. Box 90950, Riyadh 11623, Saudi Arabia;4. King Saud University, Physics and Astronomy Department, College of Science, P.O. Box. 2455, Riyadh 11451, Saudi Arabia;5. Ministry of Higher Education & Scientific Research, Sudan Atomic Energy Commission, Khartoum, Sudan;6. College of Applied & Industrial Sciences, University of Bahri, Sudan;7. Alneelain University, School of Physics, Faculty of Science and Technology, P.O. Box 12702, Khartoum 11121, Sudan |
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| Abstract: | Ag/MEH-PPV {poly2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]} composite films were prepared by the pulse current electrodeposition of Ag nanoparticles followed by spin coating of MEH-PPV and their enhanced electrochromic coloration was investigated. A relatively uniform Ag nanoparticle array was obtained by the electrodeposition and distinct plasmon absorption bands of Ag nanoparticles were observed. The absorption maximum of Ag/MEH-PPV was much higher than that of MEH-PPV, indicating that the Ag nanoparticles induced an enhanced absorption. In addition, the electrochromic absorption was 1.6 times higher at 500 nm wavelength, with a clearly different coloration compared to MEH-PPV. |
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