Three new bithiazole-based conjugated copolymers were synthesized and characterized. The EL device using PNBTV as the emitting layer showed red electroluminescence at 641 nm with a peak luminance of ca. 160 cd/m2 (0.008 cd/A). The red electroluminescence was attributed to the formation of excimers between the polymer chains. An EL device using PNBTV6 as the emitting material, which had two n-hexyl groups introduced to the phenylene in the main chain of PNBTV, showed a reddish orange emission that was blue shifted by approximately 52 nm compared with that observed with PNBTV. This observation was attributed to the significant decrease in interactions between the chains of the polymers due to the two bulky n-hexyl groups. On the other hand, PNBTV6 was found to have superior hole transporting ability compared with its electron transporting ability.

Download full-text PDF

Source
http://dx.doi.org/10.1166/jnn.2008.1112DOI Listing

Publication Analysis

Top Keywords

red electroluminescence
8
n-hexyl groups
8
transporting ability
8
synthesis electroluminescent
4
electroluminescent properties
4
properties conjugated
4
conjugated bithiazole-containing
4
bithiazole-containing polymers
4
polymers three
4
three bithiazole-based
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!