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https://hdl.handle.net/11147/4112
Title: | Highly efficient orange–red electroluminescence from a single layer MEH-PPV-POSS:CdS0.75Se0.25 hybrid PLED | Authors: | Saygılı, Gamze Ünal, Gülçin Özçelik, Serdar Varlıklı, Canan |
Keywords: | Organic light emitting diodes Conjugated polymer Hybrid systems Quantum dots Nanocomposites |
Publisher: | Elsevier Ltd. | Source: | Saygılı, G., Ünal, G., Özçelik, S., & Varlıklı, C. (2012). Highly efficient orange–red electroluminescence from a single layer MEH-PPV-POSS:CdS0.75Se0.25 hybrid PLED. Materials Science and Engineering B, 177(12), 921–928. doi:10.1016/j.mseb.2012.04.011 | Abstract: | In this study, poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] end capped with polyhedral oligomeric silsesquioxanes (MEH-PPV-POSS): cadmium sulfide selenide quantum dots (CdS0.75Se0.25 QDs) nanocomposites based OLEDs were fabricated. By the addition of CdS0.75Se0.25QDs into the polymer active layer, a considerable enhancement was observed in terms of hole and electron injection in devices. Additionally, the presence of QDs reduced the interchain interaction of polymer that resulted in narrower electroluminescence (EL) spectrum. The device structure of ITO/PEDOT: PSS/MEH-PPV-POSS: 25 wt% CdS0.75Se0.25/Ca (40 nm)/Al demonstrated the best performance with a brightness of 8672 cd/m 2 at 10 V, current efficiency of 2.5 cd/A at 8 V, and an EQE of 0.55% at 150 mA/cm2 . | URI: | http://hdl.handle.net/11147/4112 http://dx.doi.org/10.1016/j.mseb.2012.04.011 |
ISSN: | 0921-5107 1873-4944 |
Appears in Collections: | Chemistry / Kimya Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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File | Description | Size | Format | |
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Highly ef_cient orange.pdf | 1.42 MB | Adobe PDF | ![]() View/Open |
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