吉林师范大学学报(自然科学版)
吉林師範大學學報(自然科學版)
길림사범대학학보(자연과학판)
JILIN NORMAL UNIVERSITY JOURNAL(NATURAL SCIENCE EDITION)
2014年
4期
32-35
,共4页
王福军%汪津%张会萍%姜文龙
王福軍%汪津%張會萍%薑文龍
왕복군%왕진%장회평%강문룡
双发光层%效率%有机电致发光器件
雙髮光層%效率%有機電緻髮光器件
쌍발광층%효솔%유궤전치발광기건
double emitting layers%efficiency%OLED
制备了基于 N-BDAVBi 的高效率双发光层蓝色有机电致发光器件(OLED),器件中将蓝色荧光染料 N-BDAVBi 作为客体发光材料分别掺入主体材料 TCTA 和 TPBi 中,器件结构为 ITO/ m-MTDATA(40 nm)/ NPB(10 nm)/ TCTA:N-BDAVBi(15 nm)/ TPBi:N-BDAVBi(15 nm)/ TPBi(30 nm)/ LiF(0.6 nm)/ Al(150 nm),最大电流效率达到8.44 cd/ A,CIE 色坐标为(0.176,0.314),并且在12 V 的电压下,亮度最大达到11860 cd/ m2,分别是单发光层结构器件的1.85倍和1.2倍.器件性能提高主要归因于双发光层扩大了载流子复合区域,主客体间的Forster 能量转移.
製備瞭基于 N-BDAVBi 的高效率雙髮光層藍色有機電緻髮光器件(OLED),器件中將藍色熒光染料 N-BDAVBi 作為客體髮光材料分彆摻入主體材料 TCTA 和 TPBi 中,器件結構為 ITO/ m-MTDATA(40 nm)/ NPB(10 nm)/ TCTA:N-BDAVBi(15 nm)/ TPBi:N-BDAVBi(15 nm)/ TPBi(30 nm)/ LiF(0.6 nm)/ Al(150 nm),最大電流效率達到8.44 cd/ A,CIE 色坐標為(0.176,0.314),併且在12 V 的電壓下,亮度最大達到11860 cd/ m2,分彆是單髮光層結構器件的1.85倍和1.2倍.器件性能提高主要歸因于雙髮光層擴大瞭載流子複閤區域,主客體間的Forster 能量轉移.
제비료기우 N-BDAVBi 적고효솔쌍발광층람색유궤전치발광기건(OLED),기건중장람색형광염료 N-BDAVBi 작위객체발광재료분별참입주체재료 TCTA 화 TPBi 중,기건결구위 ITO/ m-MTDATA(40 nm)/ NPB(10 nm)/ TCTA:N-BDAVBi(15 nm)/ TPBi:N-BDAVBi(15 nm)/ TPBi(30 nm)/ LiF(0.6 nm)/ Al(150 nm),최대전류효솔체도8.44 cd/ A,CIE 색좌표위(0.176,0.314),병차재12 V 적전압하,량도최대체도11860 cd/ m2,분별시단발광층결구기건적1.85배화1.2배.기건성능제고주요귀인우쌍발광층확대료재류자복합구역,주객체간적Forster 능량전이.
The high-efficiency and double emitting layers blue light emitting devices was fabricated in the paper. In this device,blue fluorescent material N-BDAVBi was guest which was doped into two host material of TCTA and TPBi. The device structure included indium tin oxide glass(ITO)/ m-MTDATA(40 nm)/ NPB(10 nm)/TCTA:N-BDAVBi(15 nm)/ TPBi:N-BDAVBi(15 nm)/ TPBi(30 nm)/ LiF(0. 6 nm)/ Al(150 nm). The maximum luminance efficiency was 8. 44 cd / A,which was 1. 85 times and 1. 2 times of the single light-emitting layer structure devices. CIE colour was(0. 176,0. 314). The maximum luminance of more than 20 620 cd / m2 had been achieved at 12 V. The reason of high capability was the expansion of the recombination zone in double emission layers structure,and fully Forster energy transfer in blue OLEDs.