申请人:Luebben Silvia DeVito
公开号:US20090127547A1
公开(公告)日:2009-05-21
Pi-conjugated organoboron polymers for use in thin-film organic polymer electronic devices. The polymers contain aromatic and or unsaturated repeat units and boron atoms. Pi-conjugated organoboron polymers which are end capped, derivatized with solubilizing groups or both exhibit improved solubility and handling properties beneficial for the formation of thin films useful for device fabrication. The vacant p-orbital of the boron atoms conjugate with the pi-conjugated orbital system of the aromatic or unsaturated monomer units extending the pi-conjugation length of the polymer across the boron atoms. The pi-conjugated organoboron polymers are electron-deficient and, therefore, exhibit n-type semiconducting properties, photoluminescence, and electroluminescence. The invention provides thin-film organic polymer electronic devices, such as organic photovoltaic cells (OPVs), organic diodes, organic photodiodes, organic thin-film transistors (TFTs), organic field-effect transistors (OFETs), printable or flexible electronics, such as radio-frequency identification (RFID) tags, electronic papers, and printed circuit elements, organic light-emitting diodes (OLEDs), polymer light-emitting diodes (PLEDs), and energy storage devices employing the pi-conjugated organoboron polymers. In OLED and PLED applications these materials are used as the electron transport layer (ETL) to improve device efficiency. The polymers which exhibit photo- and electroluminescence are also useful as light-emitting material in PLEDs.
含有芳香和/或不饱和重复单元和硼原子的π-共轭有机硼聚合物,用于薄膜有机聚合物电子器件。末端带有端基、衍生出可溶性基团或两者兼备的π-共轭有机硼聚合物表现出改善的溶解性和处理性能,有利于形成薄膜,可用于器件制造。硼原子的空缺p轨道与芳香或不饱和单体单元的π-共轭轨道系统共轭,延长了聚合物跨越硼原子的π-共轭长度。π-共轭有机硼聚合物是电子亏损的,因此表现出n型半导体性质、光致发光和电致发光。该发明提供了薄膜有机聚合物电子器件,例如有机光伏电池(OPVs)、有机二极管、有机光电二极管、有机薄膜晶体管(TFTs)、有机场效应晶体管(OFETs)、可印刷或柔性电子器件,例如射频识别(RFID)标签、电子纸和印刷电路元件、有机发光二极管(OLEDs)、聚合物发光二极管(PLEDs)和采用π-共轭有机硼聚合物的储能器件。在OLED和PLED应用中,这些材料被用作电子传输层(ETL)以提高器件效率。表现出光致发光和电致发光的聚合物也可用作PLED中的发光材料。