Power Dependence and Turn-On Dynamics of Polymer Photocells - Extracting Mobilities and Analyzing Morphologies
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Power Dependence and Turn- on Dy
nam
i cs
of
Pol y
m
er Ph
I5.10.1
ot ocel l s
–
E
x
t ract i ng
M
ob
i l i t i es
Noam Rappaport and Nir Tessler E
A
lec tric al E
ng ineering
B
T
S
W
TR
A
C
F
e present an analy tic
ac u
lty ,
Tec h
nion I srael I nstitu
desc ription f or th
e loss of
intensities and demonstrate a simple tec h semic ondu
c ting
drif t- rec omb ph
otoc u
M
E ph
H
ination sc h
rrent q
- P
P
otoc u
V
poly mer lay ers.
.
u
Th
antu
rrent and th
e time ev
th
e resu
th
eoretic al and ex
in redu
I N
TR
E
olu
c ing
O
( w
ith
eq
u
w
a b
al,
TI O
ell.
A
t low
ph
as th
h
elec trons.
c u
O
u
lts ob
rrent tu
Th
f or th
antu
dy
e link
les th
tained in th
produ
I nstead of
u
lts w
c h
arac teriz ed b
ex
plains th
y
ith
en u
th ex
e mob
e measu
aif a,
at moderate lig h
ility w
h
of
ic h
sed to desc rib
e role of
t
elec trons in is b
ased on a simple
red intensity
e th
e sw
itc h
ole c onc entrations inside th
ss th
I srael.
dependent
trac tion is demonstrated f or pristine
rrent transient w
to disc u
th
eoretic al analy sis,
ility
H
rrent ef f ic ienc y
trac ting
dependenc e measu
c ting
on of
e dev
th
ic e.
e f ind an independent v
rements.
rec omb
W
e u
se th
e
B
y
analy z ing
erif ic ation f or
e c omb
ination of
ination and spac e c h
A
t h
ig h
poly mer lay ers are ty pic ally
lating ou
–
( Q
ed to th
lts th
E
)
e h
e dispersiv
e natu
re of
so do th
arg e ef f ec ts
ou
g h
av
th
e h
C
L
)
ing
th
th
h
ic h
e ph
ere analy z ed.
h
ow u
ilib
er, riu
th
e intensity
e spac e c h ility .
at w
arg e ( S
C
h )
Th
e mob
e tu
ility
m dispersiv
w
ay s of
A
t th
ic h
th
c u
w
a w
as f ou
ith
h
ereb
dif f erent mob
y
th
A
e
e
c onf irm th h ex
ereb
y
th
ility
v
alu
plain th
e
in poly mer lay er is Th
e transport f rom a spatial domain point of
is approac h v
iew
.
e e
c itation
etter def ined.
eories to ex e th
en
e ef f ic ienc y
at low
e b
t
t a g iv
is point th
ell def ined mob
ilities.
lig h
o inter- related
rements w
nd to b
e transport th w
rrents are
rrent f or th
rn- on dy namic s,
de ic es
e lay er as
rrent w
I n order to independently
at dif f erent approac h
parallel path
arg e th
otoc u
ination.
lt to analy z e in terms of ev
c h
c arrier c onc entrations.
and rec omb Th
mag nitu
t detec tor dev
ole and elec tron c u
e perf ormed transient analy sis measu
ere dif f ic u
th
eral orders of
e c arrier c onc entrations and tw
elec tron mob
ic e w
e propose a somew tion of
alth
sev
otoc ell or lig h
e lay er is elec trons w
starts to dec line.
er intensities h
u
at in ph
pec t a linear inc rease of
e term desc rib
e dev
at w
oles) ,
arg e limit ( S
trac tion of
th
is is th
ination is insig nif ic ant at low
spac e c h
e ex
h
th
e ac tiv
ld ex
time domain non- eq
a distrib
th
is inc reased,
is manner w
c ed resu
t
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