TY - JOUR
T1 - White organic light-emitting devices fabricated by spin-coating molecular materials
AU - Wang, Dong Dong
AU - Wu, Zhao Xin
AU - Zhang, Xin Wen
AU - Jiao, Bo
AU - Wang, Da Wei
AU - Hou, Xun
PY - 2010
Y1 - 2010
N2 - White organic light-emitting device (WOLEDs) employing molecular mixed host (MH) is demonstrated by spin-coating. The spin-coated film functions as light-emitting layer and hole transporting layer, with the former formed by spin-coating solution containing MH of NPB (N. N′-Bis(naphthalene-1-yl)-N,N′-bis(phenyl)-benzidine) and MADN (2-methyl-9,10-di(2-naphthyl) anthracene), blue dye (4,4′-bis[2-(4-(N,N-diphenylamino)phenyl)vinyl]biphenyl) and yellow dye (5,6,11,12-tetraphenylnaphacene). The performances of the devices made with different mixed ratio of MH are investigated. It is found that the device performances depends on the MH ratio, and under the optimal NPB:MADN ratio (60:40), the WOLEDs show a maximum luminance of 24 671 cd/m2 and a current efficiency of 5. 8 cd/A for the practical luminance of 1000 cd/m2. The effect of MH ratio on device performances can be attributed to the difference of hole mobility between the NPB and MADN.
AB - White organic light-emitting device (WOLEDs) employing molecular mixed host (MH) is demonstrated by spin-coating. The spin-coated film functions as light-emitting layer and hole transporting layer, with the former formed by spin-coating solution containing MH of NPB (N. N′-Bis(naphthalene-1-yl)-N,N′-bis(phenyl)-benzidine) and MADN (2-methyl-9,10-di(2-naphthyl) anthracene), blue dye (4,4′-bis[2-(4-(N,N-diphenylamino)phenyl)vinyl]biphenyl) and yellow dye (5,6,11,12-tetraphenylnaphacene). The performances of the devices made with different mixed ratio of MH are investigated. It is found that the device performances depends on the MH ratio, and under the optimal NPB:MADN ratio (60:40), the WOLEDs show a maximum luminance of 24 671 cd/m2 and a current efficiency of 5. 8 cd/A for the practical luminance of 1000 cd/m2. The effect of MH ratio on device performances can be attributed to the difference of hole mobility between the NPB and MADN.
KW - Mixed host
KW - Small-molecular materials
KW - Spin-coating
KW - White organic light-emitting devices
UR - https://www.scopus.com/pages/publications/77952309081
U2 - 10.1007/s11434-009-0570-z
DO - 10.1007/s11434-009-0570-z
M3 - 文章
AN - SCOPUS:77952309081
SN - 1001-6538
VL - 55
SP - 986
EP - 991
JO - Chinese Science Bulletin
JF - Chinese Science Bulletin
IS - 10
ER -