White organic light-emitting devices by employing dual sub-monolayer

DOI

10.2991/icsma-16.2016.53How to use a DOI?

Keywords

White organic light-emitting devices; Dual sub-monolayer; Luminance; Efficiency; The Commission Internationale de 1'Eclairage (CIE) coordinates

Abstract

White organic light-emitting device have been fabricated by using highly blue fluorescent dye 9,10-di (2-naphthyl) anthracene(ADN) and 4- (dicyanomethylene) -2-t-butyle-6-(1,1,7,7- tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB), together with well known green fluorescent dye 10- (2-benzothiazolyl) -2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H(1)-benzopyroyran-o (6,7-8-i,j) quinolizin-11-one(C545T). The fabrication of multilayer WOLEDs did not involve the hard-to-control doping process. The structure of the device is ITO/ 2T-NATA (50nm)/ AND (15 nm ) / C545T (0.05 nm) /Alq3(5 nm) / DCJTB(x nm)/ Alq3 (50 nm)/LiF(0.5nm)/Al,where x=0.025 nm,0.05 nm and 0.075 nm, called device A-C, respectively. where 4,4'4'-Tris ( N-(2-naphthyl) -N- phenyl-amino)- triphenylamine (2T-NATA) act as hole transport layer , ADN act as blue emitting layer, DCJTB act as sub-monolayer red emitting layer, C545T act as sub-monolayer green emitting layer, tris- (8-hydroxyquinoline) aluminium (Alq3) act as electron transport layer, WOLEDs of device A, B, and C, different in layer thickness of DCJTB. To change the thickness of sub-monolayer DCJTB, WOLEDs was obtained. When x =0.025, the Commission Internationale de 1'Eclairage (CIE) coordinates of the device A change from (0.3212, 0.2992) at 4 V to (0.3018, 0.3185) at 13 V that are well in the white region, respectively. Its maximum luminance was 8520 cd/ m2 at 13 V, maximum current efficiency, maximum power efficiency was 9.92 cd/A at 6V, 2.09 lm /W at 4 V, respectively.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Lishuang Wu
AU  - Huishan Yang
PY  - 2016/12
DA  - 2016/12
TI  - White organic light-emitting devices by employing dual sub-monolayer
BT  - Proceedings of the 2016 4th International Conference on Sensors, Mechatronics and Automation (ICSMA 2016)
PB  - Atlantis Press
SP  - 297
EP  - 301
SN  - 1951-6851
UR  - https://doi.org/10.2991/icsma-16.2016.53
DO  - 10.2991/icsma-16.2016.53
ID  - Wu2016/12
ER  -