Synthesis and Hole-Transporting Property of a Novel Poly(N-vinylcarbazole) Copolymer with Metal-Coordination Sites

✍ Scribed by Atsushi Kimoto; Jun-Sang Cho; Yugo Matsuura; Kimihisa Yamamoto

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 165 KB
• Volume: 206
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200500145

✦ Synopsis

Abstract

Summary: Hole transporting poly(N‐vinylcarbazole) copolymers with phenylazomethine dendron units acting as metal ligation sites were synthesized. These polymers possess both hole‐transport and metal‐collecting units with simple σ‐bond linkages. Complexation in the phenylazomethine dendron unit within these copolymers by SnCl~2~ has been successfully observed by the change in the UV‐vis spectra. The complexation changes the HOMO/LUMO energy gap that results in a spectral red‐shift. Using copolymers as a hole‐transport layer, only complexation with metal ions leads to an enhanced maximum luminescence. Such a complexation results in a high electroluminescence efficiency because the p‐type‐doped structure acts as the hole‐transport layer.

Copolymerization for the preparation of DPAG__n__(x)‐Cbz(y).

magnified imageCopolymerization for the preparation of DPAG__n__(x)‐Cbz(y).