Abstract
The performance of oligothiophene‐based organic LEDs can be dramatically improved (by up to four orders of magnitude) by using a two‐layer device made of unsubstituted sexithiophene (6T) and a substituted 6T (see Fig.), although the substituted 6T materials do not produce electroluminescence in single‐layer devices. Yellow emission with a quantum yield of 0.15% has been achieved. (Figure Presented.)
| Original language | English |
|---|---|
| Pages (from-to) | 752-755 |
| Number of pages | 4 |
| Journal | Advanced Materials |
| Volume | 6 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Jan 1994 |