Page 328 - Organic Electronics in Sensors and Biotechnology

Organic Electronics in Memories and Sensing Applications 305

PF-nP Dendrimers CN-nT-CN Diphenylanthrazoline
F F NC S CN
F F F F
F
n
F F Tetrachloro PTCDI-R R
F F ClCl N N
F F
O O R
F F
R N N R
F F
F O O
ClCl
DB-TCV3T PF-6T
F F F F F F
CN CN
S S S
NC S S CN F S F
CN CN S S S
F F F F F F
TB-TCV6T PF-nP
C H C H
4 9 4 9 F F F F F F
CN CN
S S S CN
NC S S S F F
CN CN n
C H C H F F F F F F
4 9 4 9
PTCDI-PPEEB
O O
O O
O O N N O O
O O
PTCDI-PPE4CN
O O
O O O O
NC O O N N O O CN
O O
DHCO-4T
EHI-PITN
O R P4AQ
S S C H
C H S S 6 13 O N O
6 13
O
DFHCO-4T N
O
S S C F n
C F S S 6 13 R
6 13 S n
O
FIGURE 8.3 Structures of some other n-channel semiconductors. (Reproduced with
permission from Ref. 4. Copyright 2004, American Chemical Society.)
have been shown to exhibit good electron and hole mobilities. 22–23 We
have demonstrated ambipolar CMOS-like inverters employing ambi-
24
polar pentacene OFETs. Fullerene derivatives such as PCBM and C
70
have also shown ambipolar transport and circuits. 25–26 Among the
27
phthalocyanines, copper phthalocyanine, CuPc, and iron phthalo-
cyanine, FePc, and among polymers, poly(3,9-di-t-butylindeno[1,2-b]
28
fluorene) (PIF), and bis[4-dimethylaminodithiobenzyl]-nickel have