Environmental Engineering Reference
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Table 4 Film uniformity of PEDOT:PSS and super yellow layers for blade-only coating versus blade-slit coating
Blade-only
Avg
a
SD
b
U
c
Hole injection layer, PEDOT:PSS (nm)
Pos
d
1
2
3
4
5
6
7
8
9
10
(nm)
(nm)
(%)
Thk
e
73.1
79.3
71.6
76.7
75.0
78.0
73.3
61.1
63.2
73.1
72.4
5.7
7.9
Light-emitting layer, super yellow (nm)
Pos
d
1
2
3
4
5
6
7
8
9
10
Thk
e
71.3
55.8
58.1
55.9
60.2
71.4
60.9
64.7
68.9
60.2
62.7
5.7
9.1
Blade
slit
Hole injection layer, PEDOT:PSS (nm)
Pos
d
1
2
3
4
5
6
7
8
9
10
Thk
e
32.9
32.4
32.2
33.3
31.3
33.7
32.6
32.0
31.9
32.0
32.4
0.68
2.1
Light-emitting layer, super yellow (nm)
Pos
d
1
2
3
4
5
6
7
8
9
10
Thk
e
102.2
100.0
102.9
105.4
104.3
102.2
100.2
100.1
106.1
105.7
102.9
2.3
2.2
Reproduced from [
16
] with permission from Elsevier 2012
a
Avg: average thickness of ten points (nm)
b
SD: standard deviation (nm)
c
U: non-uniformity (%): (SD/Avg)
d
Pos: measured position
e
Thk: thickness
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