Reduced electrical hysteresis of organic thin-film transistors based on smallmolecule semiconductor through an insulating polymer binder

Soosang Chae; Tae Il Lee; Jin Young Oh

Korean Journal of Chemical Engineering, Vol.39, No.3, 499-503, March, 2022

DOI10.1007/s11814-021-1005-z Export Citation

Reduced electrical hysteresis of organic thin-film transistors based on smallmolecule semiconductor through an insulating polymer binder

Soosang Chae, Tae Il Lee^{1, †}, and Jin Young Oh^{2, †}

IPF - Leibniz-Institut für Polymerforschung Dresden e.V, Institute of Physical Chemistry and Polymer Physics, 01069 Dresden, Germany
¹Department of Materials Science and Engineering, Gachon University, Seongnam 13120, Korea
²Department of Chemical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin 17104, Korea

E-mail:,

The electrical stability of organic thin film transistors (OTFTs) based on 6, 13-bis(triisopropylsilylethynyl) (TIPS) pentacene were improved by blending poly(α-methylstyrene) (PαMS) binder with the TIPS-pentacene. The blended semiconducting film is vertically phase-separated, which forms a TIPS-pentacene rich region at top surface due to its lower surface energy than PαMS, inducing interface modification at semiconducting layer and dielectric layer. The modified interface induces an increase in charge current density and a decrease in charge trap density, leading to efficiently reduced electrical hysteresis and increased field-effect mobility.

Keywords:TIPS-pentacene;Vertical Phase Separation;Organic Thin Film Transistors

[References]

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[1] Oh JY, Rondeau-Gagn? S, Chiu YC, Chortos A, Lissel F, Wang GJN, Schroeder BC, Kurosawa T, Lopez J, Katsumata T, Xu J, Zhu C, Gu X, Bae WG, Kim Y, Jin L, Chung JW, Tok JBH, Bao Z, Nature, 539, 411 (2016)

[2] Xu J, Wang S, Wang GJN, Zhu C, Luo S, Jin L, Gu X, Chen S, Fei VR, To JWF, Rondeau-Gagn? S, Park J, Schroeder BC, Lu C, Oh JY, Wang Y, Kim YH, Yan H, Sinclair R, Zhou D, Xue G, Murmann B, Linder C, Cai W, Tok JBH, Chung JW, Bao Z, Science, 355, 59 (2017)

[3] Oh JY, Son D, Katsumata T, Lee Y, Kim Y, Lopez J, Wu HC, Kang J, Park J, Gu X, Mun J, Wang NGJ, Yin Y, Cai W, Yun Y, Tok JBH, Bao Z, Sci. Adv., 5, eaav3097 (2019)

[4] Wang S, Xu J, Wang W, Wang GN, Rastak R, Molina-Lopez F, Chung JW, Niu S, Feig VR, Lopez J, Lei T, Kwon SK, Kim Y, Foudeh AM, Ehrlich A, Gasperini A, Yun Y, Murmann B, Tok JB, Bao Z, Nature, 555, 83 (2018)

[5] Wang S, Oh JY, Xu J, Tran H, Bao Z, Acc. Chem. Res., 5, 1033 (2018)

[6] Oh JY, Bao Z, Adv. Sci., 6, 1900186 (2019)

[7] Minemawari H, Yamada T, Matsui H, Tsutsumi J, Haas S, Chiba R, Kumai R, Hasegawa T, Nature, 475, 364 (2011)

[8] Yuan Y, Giri G, Ayzner AL, Zoombelt AP, Mannsfeld SCB, Chen J, Nordlund D, Toney MF, Huang J, Bao Z, Nat. Commun., 5, 3005 (2014)

[9] Kim DH, Lee DY, Lee HS, Lee WH, Kim YH, Han JY, Cho K, Adv. Mater., 19, 678 (2007)

[10] Diao Y, Tee BCK, Giri G, Xu J, Kim DH, Becerril HA, Stoltenberg RM, Lee TH, Xue G, Mannsfeld SCB, Bao Z, Nat. Mater., 12, 665 (2013)

[11] Huang W, Shi W, Han S, Yu J, AIP Adv., 3, 52122 (2013)

[12] Egginger M, Bauer S, Schw?diauer R, Neugebauer H, Sariciftci NS, Monatsh. Chem., 140, 735 (2009)

[13] Hwang DK, Oh MS, Hwang JM, Kim JH, Im S, Appl. Phys. Lett., 92, 13304 (2008)

[14] Gu G, Kane MG, Doty JE, Firester AH, Appl. Phys. Lett., 87, 243512 (2005)

[15] Kim JY, Kim JW, Lee EK, Park JI, Lee BL, Kwon YN, Byun S, Jung MS, Kim JJ, J. Mater. Chem. C, 6, 13359 (2006)

[16] Lee CA, Park DW, Jin SH, Park IH, Lee JD, Park BG, Appl. Phys. Lett., 88, 252102 (2006)

[17] Qiu L, Lim JA, Wang X, Lee WH, Hwang M, Cho K, Adv. Mater., 20, 1141 (2008)

[18] Ohe T, Kuribayashi M, Yasuda R, Tsuboi A, Nomoto K, Satori K, Itabashi M, Kasahara J, Appl. Phys. Lett., 93, 53303 (2008)

[19] Kang J, Shin N, Jang DY, Prabhu VM, Yoon DY, J. Am. Chem. Soc., 130, 12273 (2008)

[20] Kwon JH, Shin S, Kim S, Cho MJ, Kim KN, Choi DH, Ju B, Appl. Phys. Lett., 94, 13506 (2009)

[21] Madec MB, Smith PJ, Malandraki A, Wang N, Korvink JG, Yeates SG, J. Mater. Chem., 20, 9155 (2010)

[22] Qiu L, Lee WH, Whang Z, Kim JS, Lim JA, Kwak D, Lee S, Cho K, Adv. Mater., 21, 1349 (2009)

[23] Lee WH, Lim JA, Kwak D, Cho JH, Lee HS, Choi HH, Cho K, Adv. Mater., 21, 4243 (2009)

[24] Veres J, Ogier S, Leeming SW, Cupertino DC, Khaffaf SM, Adv. Funct. Mater., 13, 199 (2003)

[25] Babel A, Jenekhe SA, Macromolecules, 37, 9835 (2004)

[26] Yang C, Shin K, Yang SY, Jeon H, Choi D, Chung DS, Park CE, Appl. Phys. Lett., 89, 153508 (2006)

[27] Kim CS, Lee S, Gomez ED, Anthony JE, Loo YL, Appl. Phys. Lett., 93, 103302 (2008)

[28] Chua LL, Zaumseil J, Chang JF, Ou ECW, Ho PHKH, Sirringhaus H, Friend RH, Nature, 434, 194 (2005)

[29] Kim CS, Jo SJ, Lee SW, Kim WJ, Lee SH, Baik HK, Adv. Funct. Mater., 17, 958 (2007)

[30] Rolland A, Richard J, Kleider JP, Mencaraglia D, J. Electrochem. Soc., 140, 3679 (1993)

[31] McDowell M, Hill IG, McDermott JE, Bernasek SL, Schwarts J, Appl. Phys. Lett., 88, 73505 (2006)