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Table 2: Optimized output obtained for different OLED
structures and different materials.
Far field
intensity
achieved
OLED with
Moth eye Anti
Reflective
coatings
OLED with
Photonic
crystals placed
on substrate
OLED
structure
without any
Nano structure
6 CONCLUSIONS
In this work, two dimensional Finite Difference
Time Domain (FDTD) modeling of Fluorescence
based OLED using glass substrate has been
presented. An enhanced far field intensity of 3.5µ
Vm
-1
has been achieved for a wavelength of 540 nm
by placing Moth eye Anti reflective coatings
between the substrate and the air medium. The moth
eye Antireflective coatings are placed on the surface
of the substrate of OLED will enable maximum light
out coupling efficiency compared to Conventional
OLED structure. This Anti reflective coatings
reduces reflection and increases transmission of
light.
In this work, Different OLED structures have
been designed with different materials. It is found
that OLED with Moth eye Anti Reflective coatings
with gold nano particles has increased far field
intensity compared to other materials.
ACKNOWLEDGEMENT
The authors would like to thank Science and
Engineering Research Board, Department of Science
and Technology (DST-SERB) Government of India
for funding this research work. File No.
YSS/2015/000382
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