화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.27, No.4, 402-406, August, 2016
DOI10.14478/ace.2016.1050  Export Citation
그래핀 옥사이드와 복합화한 PEDOT/PSS 필름의 열적 안정성에 관한 연구
Study on the Thermal Stability of PEDOT/PSS Film Hybrided with Graphene Oxide
최종혁, 박완수, 이성민1, 정대원†
  • 수원대학교 공과대학 신소재공학과
  • 1(주) 에버켐텍
Jong Hyuk Choi, Wan-Su Park, Seong Min Lee1, and Dae-won Chung†
  • Department of Polymer Engineering, College of Engineering, Suwon University, Suwon 18323, Korea
  • 1EverChemTech Co., Ltd, #313,314, Human Sky Vally, 959, Gosaek-dong, Gwonseon-gu, Suwon-si, Gyeonggi-do 16642, Korea
E-mail:
초록
전도성 고분자인 PEDOT/PSS의 열적 안정성을 검토하기 위하여 바인딩 물질 없이 캐스팅하는 방법에 의해서 필름을 제조하고, 200 ℃에서 annealing하면서 표면저항의 변화를 검토하였다. PEDOT/PSS 필름은 열처리에 의해서 전기적특성이 향상되었으며, 2 h 정도에서 최대 전도도값(540 S · m-1)을 나타내어 초기 값(180 S · m-1)에 비해서 3배 정도 높아졌다. 그러나 시간이 지남에 따라 전기전도도가 떨어지고, 24 h이 지난 이후에는 거의 전기적 특성을 나타내지않았다. 한편, 산화 그래핀(GO)과 복합화한 PEDOT/PSS 필름에서는 열처리에 의한 전기적 특성의 향상이 더 뚜렷하였으며, 200 ℃에서 30 h 이상 보관하더라도 전기전도도가 600 S · m-1 정도를 유지하는 것으로 나타나, GO와의 복합화가 PEDOT/PSS의 열적 안정성을 현저하게 향상시키는 것을 확인할 수 있었다.
In order to investigate the thermal stability of electro-conductive poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT/PSS), we have prepared films by casting PEDOT/PSS aqueous solution without using a binding material and measured surface resistances of the films while annealing at 200 ℃. Electrical properties of films were improved by annealing, and the maximum conductivity (540 S · m-1) after annealing for 2 hrs was found to be approximately 3 times higher than that (180 S · m-1) of the original film. The conductivities, however, dramatically decreased with an increase in annealing time and dissipated after 24 hrs of annealing. On the other hand, PEDOT/PSS films hybridized with graphene oxide (GO) displayed a salient improvement in conductivity by annealing, which was measured to be around 600 S · m-1 even after 30 hrs of annealing at 200 ℃. We tentatively conclude that hybridization with GO enhances the thermal stability of PEDOT/PSS.
Keywords:poly(3,4-ethylenedioxythiophene);poly(styrene sulfonate);film;graphene oxide;thermal stability
  1. Shirakawa H, Louis EJ, MacDiarmid AG, Chiang CK, Heeger AJ, J. Chem. Soc. Chem. Comm., 578 (1977)
  2. Hong JH, Jang KS, J. Korean Ind. Eng. Chem., 18(3), 234 (2007)
  3. Lee YH, Ju YW, Jung HR, Huh YI, Lee WJ, J. Ind. Eng. Chem., 11(4), 550 (2005)
  4. Lee JM, Lim KH, J. Ind. Eng. Chem., 6(3), 157 (2000)
  5. Munstedt H, Polymer, 29, 296 (1988)
  6. Louwet F, Groenendaal L, Dhaen J, Manca J, Van Luppen J, Verdonck E, Leenders L, Synth. Met., 135, 115 (2003)
  7. Groenendaal BL, Jonas F, Freitag D, Pielartzik H, Reynolds JR, Adv. Mater., 12(7), 481 (2000)
  8. Kim KR, Oh SH, Kim HB, Jeun JP, Kang PH, Polym. Korea, 38(1), 38 (2014)
  9. Kim YH, Sachse C, Machala ML, May C, Muller-Meskamp L, Leo K, Adv. Funct. Mater., 21(6), 1076 (2011)
  10. Yu JC, Jang JI, Lee BR, Lee GW, Han JT, Song MH, ACS Appl. Mater. Interfaces, 6, 2067 (2014)
  11. Friedel B, Keivanidis PE, Brenner TJK, Abrusci A, McNeill CR, Friend RH, Greenham NC, Macromolecules, 42(17), 6741 (2009)
  12. Pingree LSC, MacLeod BA, Ginger DS, J. Phys. Chem. C, 112, 7922 (2008)
  13. Aasmundtveit KE, Samuelsen EJ, Pettersson LAA, Inganas O, Johansson T, Feidenhans’I R, Synth. Met., 101, 561 (1999)
  14. Feng Q, Du K, Li YK, Shi P, Feng Q, Chin. Phys. B, 23, 077303 (2014)
  15. Huang J, Miller PF, de Mello JC, de Mello AJ, Bradley DDC, Synth. Met., 139, 569 (2003)
  16. Kim S, Do I, Drazal LT, Polym. Compos., 31, 755 (2010)
  17. Kim IH, Jeong YG, J. Polym. Sci. B: Polym. Phys., 48(8), 850 (2010)
  18. Ansari S, Giannelis EP, J. Polym. Sci. B: Polym. Phys., 47(9), 888 (2009)
  19. Xu Z, Gao C, Macromolecules, 43(16), 6716 (2010)
  20. Zhang WL, Park BJ, Choi HJ, Chem. Commun., 46, 5596 (2010)
  21. Lee SB, Lee SM, Park NI, Lee SH, Chung DW, Synth. Met., 201, 61 (2015)
  22. Perloff DS, Solid State Electron., 20, 681 (1977)
  23. Fan BH, Mei XG, Ouyang JY, Macromolecules, 41(16), 5971 (2008)
  24. Huang JS, Miller PF, Wilson JS, de Mello AJ, de Mello JC, Bradley DDC, Adv. Funct. Mater., 15(2), 290 (2005)
  25. Kim Y, Shin M, Kim H, Macromol. Res., 16(3), 185 (2008)
  26. Kim Y, Ballantyne AM, Nelson J, Bradley DDC, Org. Electron., 10, 205 (2009)
  27. Nguyen TP, Le Rendu P, Long PD, De Vos SA, Surf. Coat. Technol., 180-181, 646 (2004)
  28. Vitoratos E, Sakkopoulos S, Dalas E, Paliatsas N, Karageorgopoulos D, Petraki F, Kennou S, Choulis SA, Org. Electron., 10, 61 (2009)
  29. Greczynski G, Kugler T, Salaneck WR, Thin Solid Films, 354(1-2), 129 (1999)
  30. Park NI, Lee SB, Lee SM, Chung D, Appl. Chem. Eng., 25(6), 581 (2014)
  31. Ouyang J, Xu QF, Chu CW, Yang Y, Li G, Shinar J, Polymer, 45(25), 8443 (2004)
  32. Tamburri E, Sarti S, Orlanducci S, Terranova ML, Rossi M, Mater. Chem. Phys., 125(3), 397 (2011)
  33. Zhang J, Gao L, Sun J, Liu Y, Wang Y, Wang J, Diam. Relat. Mat., 22, 82 (2012)
  34. Keawprajak A, Koetniyom W, Piyakulawat P, Jiramitmongkon K, Pratontep S, Asawapirom U, Org. Electron., 14, 402 (2013)
  35. Jo K, Lee T, Choi HJ, Park JH, Lee DJ, Lee DW, Kim BS, Langmuir, 27(5), 2014 (2011)
  36. Sun D, Jin L, Chen Y, Zhang JR, Zhu JJ, Chem. Plus Chem., 78, 227 (2013)
  37. Yoon YH, Seo SH, Kim GY, Lee HY, Chem.-Eur. J., 18, 13466 (2012)
  38. Chua CK, Pumera M, Chem. Soc. Rev., 43, 291 (2014)
  39. Choi JW, Lee SB, Lee SM, Park WS, Chung DW, Appl. Chem. Eng., 26(3), 331 (2015)