Highly simplified small molecular phosphorescent organic light emitting devices with a solution-processed single layer | Zendy

ZhaoKui Wang | Zendy; Yanhui Lou | Zendy; Shigeki Naka | Zendy; Hiroyuki Okada | Zendy

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Highly simplified small molecular phosphorescent organic light emitting devices with a solution-processed single layer

Author(s) -

ZhaoKui Wang,

Yanhui Lou,

Shigeki Naka,

Hiroyuki Okada

Publication year - 2011

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3625549

Subject(s) - phosphorescent organic light emitting diode , phosphorescence , oled , materials science , optoelectronics , layer (electronics) , organic electronics , voltage , nanotechnology , optics , transistor , physics , quantum mechanics , fluorescence

A highly simplified single layer solution-processed phosphorescent organic light emitting device (PHOLED) with the maximum ηP 11.5 lm/W corresponding to EQE 9.6% has been demonstrated. The solution-processed device is shown having comparable even exceeding device performance to vacuum-processed PHOLED. The simplified device design strategy represents a pathway toward large area, low cost and high efficiency OLEDs in the future. The charge injection and conduction mechanisms in two solution- and vacuum-processed devices are also investigated by evaluating the temperature dependence of current density – voltage characteristics

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