Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 47, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/47/11/115504
Keywords
organic light-emitting diode; waveguided light out-coupling; aerosol jet printing; conductive grid; improved efficiency
Categories
Funding
- National Natural Science Foundation of China [11004218, 91123034, 61007062]
- Natural Science Foundation of Jiangsu Province [BK2012631]
- Knowledge Innovation Programme of the Chinese Academy of Sciences [KJCX2-EW-M02]
- Open Fund of the State Key Laboratory of Luminescent Materials and Devices (South China University of Technology) [2012-skllmd-05]
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A simple and low-cost method for improving organic light-emitting diode (OLED) performance by printing poly(3,4-ethylenedioxythiophene) : poly(styrenesulfonate) (PEDOT : PSS) grids on the anode is demonstrated. The PEDOT : PSS grids were printed by an aerosol jet printer on the ITO anode surface. The maximum current efficiency of the OLED modified with the PEDOT : PSS grids is 1.92 times higher than a conventional device. The power efficiency enhancement factor is 2.3 at the current density of 740 mA cm(-2). The enhancement in performance can be attributed to the light extraction and conductivity of the embedded low-index grids.
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