Bernard Kippelen Seminar
Transcript of Bernard Kippelen Seminar
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!"#$%#& ()**"+"$
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Organic Semiconductors
for Energy Efficiency
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4+';)*=5+
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Global macro trends: the
zetta era
S*Q,'+-)*B *,*-+%.,$TUV8 0)KK)
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Innovation
c
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Disruptive technologies
3D+\1'D G,
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Organic semiconductors
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The vision: flexible printed
electronics
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Outline
!i,B+*)Q K)B=1O'()j*B D)
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The dawn of the OLED era
&+(-5*B
l=)K)\-
W
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Organic light-emitting diode
N+*B +*D L+*&K6H' 3\\KV l=6-V g'aV :8. W8b Y8W[UZ
C
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From fluorescence to
phosphorescence
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Trends in device architecture
IDS
G
S
D
NMOS transistors forAMOLED displays:
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N\l6l0
Green bottom-cathode, top-
emitting OLED
A')1=
A*+5',
!=-+*
E+F+G+2+D)
J
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Inverted top-emitting OLEDs on
glass
-2 0 2 4 6 810
-7
10-6
10-5
10-4
10-3
10-2
10-1
100
101
10210
3
104
Curre
ntDensity(mA/cm
2)
Voltage (V)
KAK-II-38F
0 2 4 6 810
1
102
103
104
105
106
Lum
inance(cd/m2)
Voltage (V)
10
15
20
25
30
35
KAK-II-38F
EQE(%)
Luminance
(cd/m2)
Voltage (V) EQE*(%) Current Density
(mA/cm2)
Current Efficacy (cd/A)
10 3.6 30.1 1.5 x 10-2 109.7
100 4.2 29.1 1.4 x 10-1 106.1
1,000 5.0 25.4 1.4 92.5
10,000 6.2 20.3 14.2 74.1
100,000 8.8 9.7 280.1 37.4
YqZ !p! ('+-5,'D +--5()*B g+(2',_+* '()--)
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Inverted multi-junction
OLEDs
&)*BK' F5*Q_
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Stacked double-junction
inverted OLED
RK+--
l!@iNTl&& Yc9 *(Z
3K Y:9 *(Z
g)" Y7V: *(ZN\l6l0 Yc9 *(Z
$0lTS,Y\\6ZbX^ Y79 *(Z
N3l$ Yb: *(Z
C3NO$E Y89 *(Z
3K Y7V: *(Z
g)" Y8V9 *(Z
N\l6l0 Yc9 *(Z
$0lTS,Y\\6ZbX^ Y79 *(Z
N3l$ Yb: *(Z
J
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Efficacy with light outcoupling
layer
A3AOSSOWW@b
A3AOSSOWW":A3AOSSO887Rc
101 102 103 104 1050
20
40
60
80
100
120
140
160
180
200220
Single-unit OLED
Double-unit OLED
Double-unit OLED
with outcoupling
CurrentEffic
acy(cd/A)
Luminance (cd/m2)
! ; ? @A
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Thermally activated delayed
fluorescence (TADF)
/
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TADF device structure
YDZ
Nl0)Y'Z
3D+Q=) N3@"
'()a',
C
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@'M)Q' g5()*+*Q'
YQDn(7Z
L
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TADF device roll-off
102
103
104
0
20
40
60
80
MPG_III_70C
3 Devices Shown
CurrentEffica
cy(cd/A)
Luminance (cd/m2)
0
20
40
60
80
PowerEfficacy(Lm/W)
JV R+F. 0V A)\\'K'* '1 +KV i,BV !K'Q1,
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Device platform #2
!i,B+*)Q K)B=1O'()j*B D)
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Atomic layer deposition for
OFETs
L1MD: 2)38 >NO /%3" &)"+"93#)9P Q8%$/ "3 %+G L#/G M+"93#,$G I H@I R;
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Si
Si
DVEWXE"$3%9"$"
-8-6-4-2010
-11
10-10
10-9
10-8
10-7
10-6
10-5
0.0
0.5
1.0
1.5
2.0
2.5
VTH
= - 3.6 V ,
= 1.11 cm2/Vs
W/L = 2550 m/180 m
VDS
= - 8 V
IG
IDS
1/2
(
A)1/2
IDS(
A)
VGS
(V)
N,2X4,+3%/" ,*"#%.,$
%$& 8)/8 5,Y)+)30
DVEWX*"$3%9"$" Z ED>>
Au Au
CYTOP (40 nm)
>+;LF RC< $5S
Al
Glass
PVP
Bi-layer gatedielectric
CFCF
O
C
F2
CF2
CF2F2C
[\DLE
R>:%8) /+%::S
OFETs with bilayer gate
PFBT
n
N
CH3
CH3H3C
ED>>
@< A65*B
C;+*B
OG(G 72%$/A !G ()**"+"$A "3 %+G >&4%$9"& ]%3"#)%+:A ;FA @;KF U%$G R;
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-8-6-4-20
10-11
10-10
10-9
10-8
10-7
10-6
10-5
-8-6-4-20
10-11
10-1010
-9
10-8
10-7
10-6
10-5
Plot every
100th
interval
VGS
(V)
IDS
(A)
Plot every 2000thinterval
W/L = 2550 m/180 m
VDS
= - 8 V
;>
Au Au
CYTOP (40 nm)
>+;
LF
RC< $5S
Al
Glass
PVP
+,-./ 012 345678*.9 0:2 345
PFBT
OG(G 72%$/A !G ()**"+"$A "3 %+G
>&4%$9"& ]%3"#)%+:A ;FA @;KF U%$G
R;
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Environmental tests
DVEWX*"$3%9"$" Z ED>>
>- >-
+,-./ RJ< $5S
>+;LF RC< $5S
>+
;8
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0=5
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S*HOF'1 \,)*1'D i"!N-
3Q_MS*H E7799
-2 0 2 4 6 8 1010
-11
10-10
10-9
10-8
10-7
10-6
0.0
0.5
1.0
1.5
2.0
public\shared\OFET\Do Kyung\DK-II-19_Reddy\TR\Printed TR\Ag and di-CB PES
VGS(V)
IDS
(A)
VTH
= 1.8 V ,
= 0.17 cm2/Vs
W/L = 2000 m/180 m
VDS
= 10 V
IDS
1/2
(
A)1/2
_OVX!DDQX_OV
*>/ *>/
+,-./ RJC $5S
>+;LF RC< $5S
>+
/>H
J+,D', B,
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Repeatable sensor response to cysteine
1 0 -1 -2 -3
10-9
10-8
10-7
in air
under DI water
Ag gate
W/L= 2550 m/180 m
VDS
= -2 V
-IDS
(A)
VGS
(V)
MY2012#1P60-A_R204
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R:\Public\Shared\OFET\Minseong\MY2012\#1P60-A\R204W2550L180\2. After 93 days
(
-IDS
)1/2
(
A)1/2
Stable operation under water
Water-stable OFET for biological
sensing
-0.10
-0.15
-0.20
-0.250 500 1000 1500 2000 2500 3000
0
2
0 500 1000 1500 2000 2500 3000
0
2
IDS
(A)
DIwater(L)
Cysteine(
L)
Time (s)
JV >5*. 0V A)\\'K'*. '1 +KV 3$& 3llgS!@ J3N!#S3g& v
SEN!#"3$!& X YbZ. 8X8XO8X77 Y798cZ 7W
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Device platforms
!i,B+*)Q K)B=1O'()j*B D)
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Organic photovoltaics
() C) ?#5%N< W) /411%# 456 0#XY#-A%-$< 7'%8) V%Z);Y:,#Y"# !K'Q1,
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2C[B
[D
\]
+Z S* 1=' D+,H 2Z /*D', )KK5()*+_
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Challenges in organic
photovoltaics
!
&'()Q
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Polymeric surface modifiers
W%5*+": d,#b `-$9.,$ R"eS
SNi cVX7 x 9V9X
SNinlLl Y8 *(Z cV79 x 9V9X
P
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UPS characterization
SNiT P" u cVc 'L
SNin lLlT P" u bVX 'L
&=)y
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Polymeric surface modifiers:
optimization
N
NHO N
OH
OH
NNH
OH
x y z
PEIE
-18 -17 -16
Au
Au + PEIE
ITO
ITO + PEIE
Intensity(A.U.)
PH1000
PH1000 + PEIE
E w.r.t. Fermi level (eV)
>)*=5+
?=
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Thermal and environmental
stability
0 100 200 300 400
3.6
3.9
4.2
4.5
4.8ITO/PEIE
Workfunction(eV)
Temperature (OC)
ITO
1 10 100 1000
3.6
3.9
4.2
4.5
4.8ITO/PEIE
Workfunction(eV)
Time exposed in air (h)
ITO
bU
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Validation in solar cells
-1.0 -0.5 0.0 0.5 1.0
-20
-10
0
10
20
30
40
50
-1 0 11n
1!
1m
1
Curre
ntDensity(mA/cm
2)
Voltage (V)
Dark
Light
V(V)
J(A/cm
2)
Substrate name Active layer VOC
(mV)
JSC(mA
cm-2)
FF !(%)
JWS-III-124K PBDTTT-C:PC60BM 6771 16.10.4 0.610.01 6.6 0.2
3B Y8:9 *(Z
J
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First completely plastic solar cell
bW
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Completely plastic solar cell
-0.2 0.0 0.2 0.4 0.6 0.8
-8
-6
-4
-2
0
2
4
6
8
-1 0 1 21n
1!
1m
CurrentDensity(mA/cm
2)
Voltage (V)
V(V)
J(A/cm
2)
VOC: 0.80 0.02 V
JSC: 7.1 0.3 mA/cm2
FF : 0.52 0.02
PCE : 3.0 0.2%
All-polymeric
P3HT:ICBA
PH1000
PEDOT-blend
PEI
PES
0.0
0.2
0.4
0.6
0.8
1.0
VIVIVIII
Norma
lizedPCE
Continuous bending
III
ICBA
P3HT
ST E';K6 G+2,)Q+1'D
SST ")`'D
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Modeling of organic solar cells
""."/7+*D J=7+,' *
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Current-voltage
characteristic
-1.0 -0.5 0.0 0.5 1.0
-10
-5
0
5
10
15
20
25
-1 0 110p
10n
10!
10m
Low shunt resistance device
Current(mA/cm
2)
Voltage (V)
TK-V-135C#1
V(V)
J(A/cm
2)
SNinl!S!nlbCNTS$03nJ
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Experiment vs. theory
&=
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High shunt resistance
device
-1.0 -0.5 0.0 0.5 1.0-15
-10
-5
0
510
15
20
25
-1 0 110p
10n
10!
10m
High shunt resistance device
Current(mA/cm
2)
Voltage (V)
TK-V-135 C#4
V(V)
J(A/cm
2)
SNinl!S!nlbCNTS$03nJ
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Experiment vs. theory
(revisited)
SNinl!S!nlbCNTS$03nJ
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Experiment vs. theory
(revisited)
10-3
10-2
10- 1
100
101
102
103
104
105
-0.1
0.0
0.1
0.2
0.3
0.4
0.50.6
0.7
0.8
0.9
High shunt resistance
Low shunt resistance
Voc(V)
Jsc (A/cm2)
High shu nt: TK -V- 135 C#4
Low shu nt: TK -V-135C#1
VOC
=nkT
eln(
JSC
J0
+1)
SNinl!S!nlbCNTS$03nJ
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Influence of shunt
resistance+Z
2Z
QZ
cU
M d li ith i l t
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Modeling with equivalent
circuit
c[
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Additive transfer lamination
P3HT:ICBA-L
PH1000
PH1000-L
PEI
PES
l!&nl!@iNTl&&nl!SnlbCNTS$03Ognl!@iNTl&&Og
S#8%5014,9-%T -5m` Og('+*- K+6', =+- 2''* 1,+*-G', K+()*+1'D
$
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J-Vcharacteristics
-1.0 -0.5 0.0 0.5 1.0
-6
-4
-2
0
2
4
6
8
10
-1 0 110p
10n
10!
10m
Current(mA/cm
2)
Voltage (V)
YHZ-III-135D#2,3
V(V)
J
(A/cm
2)
l!&nl!@iNTl&&nl!SnlbCNTS$03Ognl!@iNTl&&Og
:9
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Light-intensity dependence
room light
1E-10 1E-9 1E-8 1E-7 1E-6 1E-5 1E-4 1E-3 0.01
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
VOC
(V)
ISC
(A)
>C?OSSSO8b:Ez7
-1.0 -0.5 0.0 0.5 1.01E-8
1E-7
1E-6
1E-51E-4
1E-3
0.01
0.1
1
10
Currentden
sity(mA/cm
2)
Voltage (V)
dark
ISC
(A):
4.5e-10
8.4e-10
2.36e-9
5.68e-9
2.75e-8
5.67e-8
1.07e-7
3.0e-75.1e-7
6.74e-7
2.08e-6
8.7e-6
1.85e-5
5.8e-5
2.23e-4
5 I K)_G
"PI XV7 { 89O883nQ(7
0
ln( 1)LOC
InkTV
e I= +
l!&nl!@iNTl&&nl!SnlbCNTS$03Ognl!@iNTl&&Og
>V ?=
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Sustainable and green?
E''D '+,1= +25*D+*1 (+1',)+K- +*D ,'*';+2K' (+1',)+K-
@'M'K
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Forest nanotechnology
JV l
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Recyclable solar cells
>V ?=
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Recycling of organic solar
cells
::
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The path forward
g
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