3,4-Diphenylmaleimide-thiophene-fluorene copolymers for polymeric orange–red light-emitting diodes
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| Title: | 3,4-Diphenylmaleimide-thiophene-fluorene copolymers for polymeric orange–red light-emitting diodes |
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| Authors: | Chan, Li-Hsin1,2, Lee, Yu-Der1, Chen, Chin-Ti2 cchen@chem.sinica.edu.tw |
| Source: | Organic Electronics. Feb2006, Vol. 7 Issue 1, p55-59. 5p. |
| Subjects: | Copolymers, Fluorescence, Thiophenes, Fluorene, Light emitting diodes |
| Abstract: | Abstract: Fluorescent copolymers based on 3,4-diphenylmaleimide-thiophene-fluorene triad were newly synthesized and characterized. The copolymers exhibited orange–red fluorescence ( in the range of 598–620nm) with fluorescence quantum yields of 32–37% in solution and of 13–22% in solid film. Polymer light-emitting diodes with simple device structure of ITO/PDOT:PSS/copolymers/LiF/Al, where PEDOT:PSS is (poly-ethylenedioxythiophene):poly(styrene sulfonate), were preliminarily fabricated and tested. Similar color to solution photoluminescence, the devices showed orange–red electroluminescence with a maximum electroluminance of 2020cd/m2 and peak efficiency of 1.25cd/A. [Copyright &y& Elsevier] |
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| Database: | Engineering Source |
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