Conductive copolymer, conductive copolymer composition, film and opto ...

<12) United States Patent

US007875208B2 (10) Patent No.: US 7,875,208 B2

Huh et al. (45) Date of Patent: Jan. 25, 2011 (54) CONDUCTIVE COPOLYMER, CONDUCTIVE 5,126,214 A 6/1992 Tokailin et al. COPOLYMER COMPOSITION, FILM AND 6,613,855 B1 * 9/2003 Satake et al. .............. .. 526/247 OPTO-ELECTRONIC DEVICE USING THE FOREIGN PATENT DOCUMENTS SAME EP 387715 A2 9/1990 (75) Inventors: Dal Ho Huh, Suwon-si (KR); Jeong KR 10-2007-0048076 A 5/2007 Woo Lee, Anyang-si (KR); Mi Young Chae, Yongin-si (KR); Tae Woo Lee, OTHER PUBLICATIONS Seoul (KR) Zhao et al ., “Enhancement of Electrical Stability of Polyaniline Films in Aqueous Media by Surface Graft Copolymerization with Hydro(73) Assignee: Cheil Industries Inc., Gumi-si (KR) phobic M0H0m@f$,”Lfl11gmuif, 15, PP~ 3259-3264 (1999)-* ( * ) Notice: Subject to any disclaimer, the term of this * Cited by examiner patent is extended or adjusted under 35 primary Exam,~ne,,_Mark Kepee U~S~C~ 154(1)) by 600 daY5~ Assistant Examiner—Jaison P Thomas (21) A 1 N 11/936 843 (74) Attorney, Agent, or Firm—Summa, Additon & Ashe, PP - 0': 1 P.A. (65) Prior Piibiicatioii Data Disclosed herein is a conductive copolymer. The conductive Us 2008/01058 54 A1 May 3, 2003 copolymer can prevent water-absorbance, lower the concentration of polyacid contained in a molecule and exhibit supe(30) Foreign Application Priority Data rior film characteristics and excellent storage stability via a reduction in aggregation between molecules, as well as Nov. 8 2006 (KR) .................... .. 10-2006-0109751 im ~ ~ ~ ~ ~ ’ part improved efliciency and lifetime to optoelectromc <51) Int 9- dillfiig §i§‘1§°‘§§1F§ ‘LP’ O°1°§§§Z“§§i $?°§§ei@arZ§§§§§“§i’ H01B 1/00 (2006.01) gognula 1 bPé1OW_ P Y P Y P Y C08F 12/18 (2006.01) ' C08G 75/00 (2006.01) C08G 73/00 (2006.01) (1) C08G 73/06 (2006.01) (52) U.S. Cl. ..................... .. 252/500; 526/251; 528/373; 528/422; 528/423 A C (58) Field of Classification Search ............... .. 252/500; | 526/251; 528/373, 422, 423 B See application file for complete search history. (56) References Clted Further disclosed are a conductive copolymer composition, a U.S. PATENT DOCUMENTS conductive copolymer composition film and an organic opto4,539,507 A 9/1985 Vanslyke et al‘ electromc device, each including the conductive copolymer. 4,720,432 A 1/1988 VanSlyke et al. 4,769,292 A 9/1988 Tang et al. 22 Claims, 3 Drawing Sheets

U.S. Patent Jan. 25,2011 Sheet 3 013 US 7,875,208 B2

Fig. 3

Efficiency(cd/A)

12

10

8

6

4

2

0

I Fief—D
OD4
_ A D—2
A D—3
OD%

- . M .»;:mim$

A. ‘Q. I
O
0 A, -I
T A‘
A Ag I

AAAAAAAAAA
AA AAA
AA
A .....'x,“““ AAA
L
A .. ‘L I’ ‘L‘

Q
0 A § I
A. ‘ O‘. I I

A. I

I L. I
. A :~ --
0}.‘-
‘I
000-0000000000’ - ' '
O 2 4 6 8
Voltage(V)
I Fief—D
- §D—4 A
A D—2 AAAAAAA A
‘ AD% AAA ‘A“
_ 0 D-1 AA A‘.00O
AA g“'.'i."
- A I A 0! ¢:
_ .‘ ‘I
A .. .-
A ‘ 9
_ . O I
A . ‘O I
_ A . A‘ I
O “ I
- A O A. I
. A6 I
- A0 ‘. I
O
_ 60 ‘:g:,'
_ Q I-
Az"-- I I

000000000000!

O 2 4 6 8

Voltage(V)