scholarly journals Improvement of carrier transport and luminous efficiency of organic light emitting diodes by introducing a co-deposited active layer

2009 ◽  
Vol 193 ◽  
pp. 012106 ◽  
Author(s):  
Naoki Ohtani ◽  
Masaya Murata ◽  
Keiichiro Kashiwabara ◽  
Kazunori Kurata
Keyword(s):  
Active Layer ◽  
Carrier Transport ◽  
Light Emitting Diodes ◽  
Luminous Efficiency ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

Development of efficient solution-processed red phosphorescent organic light-emitting diodes using carrier transport materials

2010 ◽  
Vol 160 (15-16) ◽  
pp. 1623-1626 ◽  
Author(s):  
Myungkwan Song ◽  
Jin Su Park ◽  
Chul-Hyun Kim ◽  
Jang Soo Kim ◽  
Yeong-Soon Gal ◽  
...  
Keyword(s):  
Carrier Transport ◽  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

High Efficient White Organic Light-Emitting Diodes Using BCzVBi as Blue Fluorescent Dopant

2008 ◽  
Vol 8 (9) ◽  
pp. 4579-4583
Author(s):  
You-Hyun Kim ◽  
Su-Hwan Lee ◽  
Hyun-Soo Yoon ◽  
Jae-Yoon Choi ◽  
Sung Sik Shin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Light Emitting Diodes ◽  
Luminous Efficiency ◽  
Organic Light Emitting Diodes ◽  
Efficiency Improvement ◽  
Light Emitting ◽  
Organic Light ◽  
High Efficient

Efficiency improvement and color optimization of white organic light-emitting diodes (WOLEDs) were achieved via employing blue host DPVBi doped with blue fluorescent, BCzVBi. The structure of high efficient WOLED device was composed of ITO/NPB/DPVBi:BCzVBi-6%/MADN:DCM2-0.5%/Bphen/Liq/Al. WOLED doped by blue fluorescent BCzVBi exhibits 6.19 cd/A of luminous efficiency and 15400 cd/m2 of maximum luminescence. It also performs 480 cd/m2 of luminance at 5.7 V and 15,400 cd/m2 at 12.9 V with CIEx,y coordinates of (0.33, 0.32) and (0.32, 0.32), respectively. Hole carrier and energy transfer from DPVBi to BCzVBi are proposed to explain the observed phenomena.

Sign in / Sign up

Export Citation Format

Share Document