Lifetime enhancement of blue thermally activated delayed fluorescent devices by separated carrier channels using dibenzofuran-triazine type hosts

Yu Jin Kang; Si Hyun Han; Jun Yeob Lee

Journal of Industrial and Engineering Chemistry, Vol.62, 258-264, June, 2018

DOI10.1016/j.jiec.2018.01.003 Export Citation

Lifetime enhancement of blue thermally activated delayed fluorescent devices by separated carrier channels using dibenzofuran-triazine type hosts

Yu Jin Kang, Si Hyun Han, and Jun Yeob Lee^†

School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 440-746, Republic of Korea

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Lifetime enhancement of blue thermally activated delayed fluorescent (TADF) devices was achieved using a carrier separating host structure which was developed using dibenzofuran-triazine type electron- transporting type host materials. Two host materials built on a chemical platform of dibenzofurantriazine were synthesized as high triplet energy host materials for a blue TADF emitter and were mixed with a common hole-transporting type host. The separation of the carrier channel in the emitting layer lead to voltage reduction, external quantum efficiency increase, and lifetime extension of blue TADF devices.

Keywords:Blue device;Thermally activated delayed;fluorescent;emitter;Efficiency;Lifetime;Carrier

[References]

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Baldo MA, O’Brien DF, Thompson ME, Forrest SR, Phys. Rev. B, 60, 14422 (1999)
Chwang AB, Kwong RC, Brown JJ, Appl. Phys. Lett., 80, 725 (2002)
Yamamoto H, Brooks J, Weaver MS, Brown JJ, Murakami T, Murata H, Appl. Phys. Lett., 99, 033301 (2011)
Seo JA, Jeon SK, Gong MS, Lee JY, Noh CH, Kim SH, J. Mater. Chem. C, 3, 4640 (2015)
Furukawa T, Nakanotani H, Inoue M, Adachi C, Sci. Rep., 5, 8429 (2015)
Kim M, Jeon SK, Hwang SH, Lee JY, Adv. Mater., 27(15), 2515 (2015)
Cho YJ, Yook KS, Lee JY, Adv. Mater., 26(24), 4050 (2014)
Lee DR, Choi JM, Lee CW, Lee JY, ACS Appl. Mater. Interfaces, 8, 23190 (2016)
Im Y, Lee JY, J. Inf. Disp., 18, 101 (2017)
Baumann T, Volz D, SID Symp. Dig. Tech., 48, 661 (2017)
Uoyama H, Goushi K, Shizu K, Nomura H, Adachi C, Nature, 492(7428), 234 (2012)
Endo A, Ogasawara M, Takahashi A, Yokoyama D, Kato Y, Adachi C, Adv. Mater., 21(47), 4802 (2009)
Wu S, Aonuma M, Zhang Q, Huang S, Nakagawa T, Kuwabara K, Adachi C, J. Mater. Chem. C, 2, 421 (2014)
Lee DR, Kim M, Jeon SK, Hwang SH, Lee CW, Lee JY, Adv. Mater., 27(39), 5861 (2015)
Komatsu R, Sasabe H, Seino Y, Nakao K, Kido J, J. Mater. Chem. C, 4, 2274 (2016)
Li GJ, Fleetham T, Li J, Adv. Mater., 26(18), 2931 (2014)
Hatakeyama T, Shiren K, Nakajima K, Nomura S, Nakatsuka S, Kinoshita K, Ni JP, Ono Y, Ikuta T, Adv. Mater., 28(14), 2777 (2016)
Nakanotani H, Masui K, Nishide J, Shibata T, Adachi C, Sci. Rep., 3, 2127 (2013)
Lee SY, Yasuda T, Yang YS, Zhang Q, Adachi C, Angew. Chem.-Int. Edit., 126, 6520 (2014)
Zhang Q, Li B, Huang S, Nomura H, Tanaka H, Adachi C, Nat. Photonics, 8, 326 (2014)
Zhang QS, Tsang D, Kuwabara H, Hatae Y, Li B, Takahashi T, Lee SY, Yasuda T, Adachi C, Adv. Mater., 27(12), 2096 (2015)
Song W, Lee JY, Adv. Opt. Mater., 5, 160090 (2017)
Kim BS, Lee JY, Adv. Funct. Mater., 24(25), 3970 (2014)
Kim OY, Kim BS, Lee JY, Synth. Metals, 201, 49 (2015)
Sun JW, Lee JH, Moon CK, Kim KH, Shin H, Kim JJ, Adv. Mater., 26(32), 5684 (2014)
Kang YJ, Lee JY, Org. Electron., 32, 109 (2016)
Kim JH, Lee JY, J. Ind. Eng. Chem., 50, 111 (2017)

[Referenced By]

[1] Burroughes JH, Bradley DDC, Brown AR, Marks RN, Mackay K, Friend RH, Holmes AB, Nature, 347, 539 (1990)

[2] Baldo MA, O’Brien DF, Thompson ME, Forrest SR, Phys. Rev. B, 60, 14422 (1999)

[3] Chwang AB, Kwong RC, Brown JJ, Appl. Phys. Lett., 80, 725 (2002)

[4] Yamamoto H, Brooks J, Weaver MS, Brown JJ, Murakami T, Murata H, Appl. Phys. Lett., 99, 033301 (2011)

[5] Seo JA, Jeon SK, Gong MS, Lee JY, Noh CH, Kim SH, J. Mater. Chem. C, 3, 4640 (2015)

[6] Furukawa T, Nakanotani H, Inoue M, Adachi C, Sci. Rep., 5, 8429 (2015)

[7] Kim M, Jeon SK, Hwang SH, Lee JY, Adv. Mater., 27(15), 2515 (2015)

[8] Cho YJ, Yook KS, Lee JY, Adv. Mater., 26(24), 4050 (2014)

[9] Lee DR, Choi JM, Lee CW, Lee JY, ACS Appl. Mater. Interfaces, 8, 23190 (2016)

[10] Im Y, Lee JY, J. Inf. Disp., 18, 101 (2017)

[11] Baumann T, Volz D, SID Symp. Dig. Tech., 48, 661 (2017)

[12] Uoyama H, Goushi K, Shizu K, Nomura H, Adachi C, Nature, 492(7428), 234 (2012)

[13] Endo A, Ogasawara M, Takahashi A, Yokoyama D, Kato Y, Adachi C, Adv. Mater., 21(47), 4802 (2009)

[14] Wu S, Aonuma M, Zhang Q, Huang S, Nakagawa T, Kuwabara K, Adachi C, J. Mater. Chem. C, 2, 421 (2014)

[15] Lee DR, Kim M, Jeon SK, Hwang SH, Lee CW, Lee JY, Adv. Mater., 27(39), 5861 (2015)

[16] Komatsu R, Sasabe H, Seino Y, Nakao K, Kido J, J. Mater. Chem. C, 4, 2274 (2016)

[17] Li GJ, Fleetham T, Li J, Adv. Mater., 26(18), 2931 (2014)

[18] Hatakeyama T, Shiren K, Nakajima K, Nomura S, Nakatsuka S, Kinoshita K, Ni JP, Ono Y, Ikuta T, Adv. Mater., 28(14), 2777 (2016)

[19] Nakanotani H, Masui K, Nishide J, Shibata T, Adachi C, Sci. Rep., 3, 2127 (2013)

[20] Lee SY, Yasuda T, Yang YS, Zhang Q, Adachi C, Angew. Chem.-Int. Edit., 126, 6520 (2014)

[21] Zhang Q, Li B, Huang S, Nomura H, Tanaka H, Adachi C, Nat. Photonics, 8, 326 (2014)

[22] Zhang QS, Tsang D, Kuwabara H, Hatae Y, Li B, Takahashi T, Lee SY, Yasuda T, Adachi C, Adv. Mater., 27(12), 2096 (2015)

[23] Song W, Lee JY, Adv. Opt. Mater., 5, 160090 (2017)

[24] Kim BS, Lee JY, Adv. Funct. Mater., 24(25), 3970 (2014)

[25] Kim OY, Kim BS, Lee JY, Synth. Metals, 201, 49 (2015)

[26] Sun JW, Lee JH, Moon CK, Kim KH, Shin H, Kim JJ, Adv. Mater., 26(32), 5684 (2014)

[27] Kang YJ, Lee JY, Org. Electron., 32, 109 (2016)

[28] Kim JH, Lee JY, J. Ind. Eng. Chem., 50, 111 (2017)