Introduction Thrombosis is the formation of a blood clot in a blood vessel. When thrombosis happens in the brain,it would cause stroke; when happens in the heart,it would cause heart attack. If a thrombus breaks and t...Introduction Thrombosis is the formation of a blood clot in a blood vessel. When thrombosis happens in the brain,it would cause stroke; when happens in the heart,it would cause heart attack. If a thrombus breaks and travels to the lung,it would展开更多
通过超薄层插入与掺杂相结合的方式,分别以激光染料DCM(4-(Dicyanomethylene)-2-methyl-6-(4-dimet-hyl-aminostyryl)-4H-pyran)、铱配合物Ir(ppy)3(tris(2-phenylpyridine)iridium)和联苯乙烯衍生物BCzVB(1,4-bis[2-(3-N-ethylcarbazor...通过超薄层插入与掺杂相结合的方式,分别以激光染料DCM(4-(Dicyanomethylene)-2-methyl-6-(4-dimet-hyl-aminostyryl)-4H-pyran)、铱配合物Ir(ppy)3(tris(2-phenylpyridine)iridium)和联苯乙烯衍生物BCzVB(1,4-bis[2-(3-N-ethylcarbazoryl)vinyl]benzene)为红色、绿色和蓝色发射体,制备了磷光敏化荧光白色有机电致发光器件(OLED).通过改变DCM超薄层在CBP:Ir(ppy)3掺杂层中的插入位置实现了白色发光,最高外量子效率为2.5%(电流效率为5.1 cd/A),最高亮度为12400 cd/m^(2),且其中一种器件在1 mA/cm^(2)的电流密度下,国际照明委员会(Commission Internationale de L'Eclairage,CIE)坐标达到了理想白光平衡点(0.33,0.33).白光的获得归因于Ir(ppy)3适合的掺杂比例和DCM适合的插入位置,较好地均衡了红、绿、蓝三基色发光比例.结果表明,通过磷光敏化荧光实现三线态激子将部分能量传递给单线态激子,可望实现高效率白色有机电致发光器件,从而降低能耗并为促进OLED的应用提供更多空间.展开更多
基金supported by the National Science Foundation CAREER Award CBET-0133775 and CBET-0754158,REU grant,and graduate fellowship from the CUNY
文摘Introduction Thrombosis is the formation of a blood clot in a blood vessel. When thrombosis happens in the brain,it would cause stroke; when happens in the heart,it would cause heart attack. If a thrombus breaks and travels to the lung,it would
文摘通过超薄层插入与掺杂相结合的方式,分别以激光染料DCM(4-(Dicyanomethylene)-2-methyl-6-(4-dimet-hyl-aminostyryl)-4H-pyran)、铱配合物Ir(ppy)3(tris(2-phenylpyridine)iridium)和联苯乙烯衍生物BCzVB(1,4-bis[2-(3-N-ethylcarbazoryl)vinyl]benzene)为红色、绿色和蓝色发射体,制备了磷光敏化荧光白色有机电致发光器件(OLED).通过改变DCM超薄层在CBP:Ir(ppy)3掺杂层中的插入位置实现了白色发光,最高外量子效率为2.5%(电流效率为5.1 cd/A),最高亮度为12400 cd/m^(2),且其中一种器件在1 mA/cm^(2)的电流密度下,国际照明委员会(Commission Internationale de L'Eclairage,CIE)坐标达到了理想白光平衡点(0.33,0.33).白光的获得归因于Ir(ppy)3适合的掺杂比例和DCM适合的插入位置,较好地均衡了红、绿、蓝三基色发光比例.结果表明,通过磷光敏化荧光实现三线态激子将部分能量传递给单线态激子,可望实现高效率白色有机电致发光器件,从而降低能耗并为促进OLED的应用提供更多空间.
