Organometallic Polymer Light‐Emitting Diodes Derived from a Platinum(II) Polyyne Containing the Bithiazole Ring
| Autor: | Wai Kin Chan, K. Y. Cheung, Wai Yeung Wong, Alan Man Ching Ng, Aleksandra B. Djurišić, Ze He, Gui Jiang Zhou |
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| Rok vydání: | 2008 |
| Předmět: |
Polyyne
Polymers and Plastics Stereochemistry Organic Chemistry chemistry.chemical_element Crystal structure Electroluminescence Condensed Matter Physics chemistry.chemical_compound Crystallography chemistry Polymer chemistry Materials Chemistry OLED Physical and Theoretical Chemistry Chromaticity Luminescence Thiazole Platinum |
| Zdroj: | Macromolecular Chemistry and Physics. 209:1319-1332 |
| ISSN: | 1521-3935 1022-1352 |
| DOI: | 10.1002/macp.200800180 |
| Popis: | The synthesis, thermal, and photoluminescence properties of novel platinum metallopolyynes of bithiazole derivatives trans-[-Pt(PR3)2-C=C-Ar-C=C-]n (Ar = 4,4 , -dibutyl-2,2 , - bithiazole-5,5 , -diyl P1; 4,4 , -dinonyl-2,2 , -bithiazole-5,5 , -diyl P2) and their molecular model complexes are described. The structural properties of the dinuclear model compound for P1 have been examined by X-ray crystallography. In view of the electron-donating and electron- withdrawing nature of the thiazole rings in the main chain, a strong π-conjugated system that features unique donor-acceptor interactions is created, which results in optical bandgaps of 2.40 eV. The optical gap of the polymer is notably reduced as compared to that for the more electron-rich bithienyl analogue. Multi-layer polymer light-emitting diodes have been fabricated with the metallopolymer as the emitting layer, which give a green light color with the Commission Internationale de L'Eclairage (CIE) chromaticity coordinates of (0.26, 0.58) at 8 V. |
| Databáze: | OpenAIRE |
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