Novel Blue Light Emitting Copolymer with Both Conjugated and Nonconjugated Segments

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• 作者：Jiecong Tang ; Ruifeng Zhang ; Guowen Li ; and Jiacong Shen
• 刊名：Chemistry of Materials
• 出版年：2003
• 出版时间：July 29, 2003
• 年：2003
• 卷：15
• 期：15
• 页码：2950 - 2953
• 全文大小：66K
• 年卷期：v.15,no.15(July 29, 2003)
• ISSN：1520-5002

文摘

Through a base-induced copolymerization of 4,4'-bis(bromomethyl) biphenyl and styrene,a series of poly(p-biphenylenevinylene-co-styrene) (PBPV-co-PS) copolymers (P₁, P₂, and P₃)have been synthesized. The obtained PBPV-co-PS copolymers were characterized with FTIRspectra, ¹H NMR spectra, and GPC. The photoluminescence (PL) spectra showed a clearblue shift as an increase in the amount of styrene added in the copolymerization, whichindicates that the average conjugating length of PBPV segment in the copolymer isadjustable. Blue light emission with a maximum at 457 nm and a turn-on voltage of 9.0 Vwere observed from a single-layer device (ITO/ P₃/Al) in which P₃ was used as an emittingmaterial.