Facile Synthetic Route to a Novel Electroluminescent Polymer−Poly(p-phenylenevinylene) Containing a Fully Conjugated Aromatic Oxadiazole Side Chain
Facile Synthetic Route to a Novel Electroluminescent Polymer−Poly(p-phenylenevinylene) Containing a Fully Conjugated Aromatic Oxadiazole Side Chain
复制标题
DOI：
10.1021/ma9907439
复制
发表时间：
1999-12
期刊：
影响因子：
5.5
通讯作者：
H. Meng;Wang-Lin Yu;Wei Huang
中科院分区：
文献类型：
--
作者：
H. Meng;Wang-Lin Yu;Wei Huang
在此，我们报告了一种新型共轭聚合物聚{2-[5'-(2''-辛氧基)苯基)-1',3',4'-恶二唑-2'-基]-1,4-亚苯基亚乙烯基)} (OPO−PPV)的简便合成路线，其中高电子亲和力的芳香族恶二唑部分作为侧链连接在PPV主链上。结果表明，OPO−PPV 是一种具有平衡电荷注入的新型聚合物材料，可用作单层发光二极管（LED）的发光材料。目前 OPO−PPV 的合成揭示了一种有前景的方法，通过控制发光材料的本征特性来平衡聚合物 LED 电致发光层中电子和空穴之间的电荷注入。 OPO-PPV 的 NMR（13C 和 1H）谱表明聚合物具有明确的结构。该聚合物具有良好的热稳定性（在氮气中稳定至 368 °C）和高玻璃化转变温度（170 °C）。研究了聚合物的吸收光谱和光致发光光谱。循环伏安法（CV）...
Herein we report a facile synthetic route to a new conjugated polymer, poly{2-[5‘-(2‘ ‘-octyloxy)phenyl)-1‘,3‘,4‘-oxadiazole-2‘-yl]-1,4-phenylenevinylene)} (OPO−PPV), in which a high-electron-affinity aromatic oxadiazole moiety is attached on the PPV backbone as side chain. It is demonstrated that OPO−PPV is a new polymeric material with balanced charge injection for the application as emissive material in single-layer light-emitting diodes (LEDs). The present synthesis of OPO−PPV reveals a promising approach to balance the charge injection between electrons and holes into electroluminescent layers in polymer LEDs by controlling the intrinsic properties of light-emitting materials. The NMR (13C and 1H) spectra of OPO−PPV demonstrate a well-defined structure in the polymer. The polymer exhibits good thermal stability (stable up to 368 °C in nitrogen) and high glass-transition temperature (170 °C). Both the absorption and photoluminescence spectra of the polymer have been studied. Cyclic voltammetry (CV) ha...