Abstract
The present work reports on the fabrication of polymer light-emitting diodes by blending a small amount of poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene) (MEH-PPV) with poly(2,3-dibutoxy-1,4-phenylene vinylene) (DB-PPV). The optical spectra of the devices made of various ratios of the DB-PPV/MEH-PPV blends have shown that the inter-chain interactions of MEH-PPV chains were efficiently suppressed in the presence of DB-PPV as the host, resulting in the improvement of thermal stability and electroluminescence (EL) efficiency of the devices. The enhanced performance of the devices is attributed to the efficient Fo{combining double acute accent}rster energy transfer and charge trapping on the polymer blends of the DB-PPV/MEH-PPV host-guest system.
Original language | English |
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Pages (from-to) | 70-73 |
Number of pages | 4 |
Journal | Materials Chemistry and Physics |
Volume | 106 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2007 Nov 15 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics