Highly-twisted pyrene derivative for pure-blue organic light emitting diodes

Sunyoung Sohn; Xinwei Wu; Kwang Hun Park; Hyungju Ahn; Sungjune Jung; Soon-Ki Kwon; Yun-Hi Kim

Journal of Industrial and Engineering Chemistry, Vol.78, 239-245, October, 2019

DOI10.1016/j.jiec.2019.06.007 Export Citation

Highly-twisted pyrene derivative for pure-blue organic light emitting diodes

Sunyoung Sohn, Xinwei Wu¹, Kwang Hun Park², Hyungju Ahn³, Sungjune Jung^†, Soon-Ki Kwon^{2, †}, and Yun-Hi Kim^{1, †}

Department of Creative IT Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
¹Department of Chemistry and Research Institute for Natural Science, Gyeonsang National University, Jinju 52828, Republic of Korea
²Department of Materials Engineering and Convergence Technology and ERI, Gyeongsang National University, Jinju 52828, Republic of Korea
³Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea

E-mail:, ,

The new fluorescent blue host material, 1,3,6,8-tetrakis(2,5-dimethylbiphenyl-4-yl)pyrene (BD4PP), was synthesized for pure-blue organic light-emitting diodes (OLEDs). BD4PP has highly twisted and steric structure for efficient fluorescence, and has high thermal stability of 492 °C. BD4PP host doped with 5 wt. % 4,4'-bis(9-ethyl-3-carbazovinylene)-1,1'-biphenyl (BCzVBi) or 5 wt. % 1,4-bis[2-(3-N-ethylcarbazoryl)- vinyl]benzene (BCzVB) showed high device efficiencies due to wide bandgap (~3.1 eV) and electron-rich host. An OLED with the BD4PP:BCzVB emitter showed higher current and external quantum efficiencies of 4.41 cd/A and 3.80% with color coordinates (0.16, 0.13) compared to those of the BD4PP:BCzVBi (3.63 cd/A and 3.62%) with color coordinates (0.16, 0.11) and non-doped BD4PP (2.01 cd/A and 1.61%) with color coordinates (0.18, 0.13).

Keywords:Blue fluorescence;Organic light emitting diodes;Color purity;Pyrene;Grazing incidence wide-angle X-ray;diffraction

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Lee SB, Park KH, Joo CW, Lee JI, Lee J, Kim YH, Dyes Pigments, 128, 19 (2016)
Tao SL, Peng ZK, Zhang XH, Wang PF, Lee CS, Lee ST, Adv. Funct. Mater., 15(10), 1716 (2005)
Tang C, Liu F, Xia YJ, Lin J, Xie LH, Zhong GY, Fan QL, Huang W, Org. Electron. Phys. Mater. Appl., 7(3), 155 (2006)
Figueira-Duarte TM, Del Rosso PG, Trattnig R, Sax S, List EJW, Mullen K, Adv. Mater., 22(9), 990 (2010)
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Kim WYKTG, Sool OH, Kim YH, Trans. Electr. Electron. Mater., 11(2), 85 (2010)
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Yang SH, Huang SF, Chang CH, Chung CH, J. Lumines., 131(10), 2106 (2011)
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Yu LZ, Jiang XY, Zhang ZL, Lou LR, Lee CT, J. Appl. Phys., 105(1), 013105 (2009)

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[2] Wu KC, Ku PJ, Lin CS, Shih HT, Wu FI, Huang MJ, Lin JJ, Chen IC, Cheng CH, Adv. Funct. Mater., 18(1), 67 (2008)

[3] Lee SB, Park KH, Joo CW, Lee JI, Lee J, Kim YH, Dyes Pigments, 128, 19 (2016)

[4] Tao SL, Peng ZK, Zhang XH, Wang PF, Lee CS, Lee ST, Adv. Funct. Mater., 15(10), 1716 (2005)

[5] Tang C, Liu F, Xia YJ, Lin J, Xie LH, Zhong GY, Fan QL, Huang W, Org. Electron. Phys. Mater. Appl., 7(3), 155 (2006)

[6] Figueira-Duarte TM, Del Rosso PG, Trattnig R, Sax S, List EJW, Mullen K, Adv. Mater., 22(9), 990 (2010)

[7] Kotchapradist P, Prachumrak N, Tarsang R, Jungsuttiwong S, Keawin T, Sudyoadsuk T, Promarak V, J. Mater. Chem. C, 1(32), 4916 (2013)

[8] Kim R, Lee S, Kim KH, Lee YJ, Kwon SK, Kim JJ, Kim YH, Chem. Commun., 49(41), 4664 (2013)

[9] Chercka D, Yoo SJ, Baumgarten M, Kim JJ, Mullen K, J. Mater. Chem. C, 2(43), 9083 (2014)

[10] Kim KH, Liao JL, Lee SW, Sim B, Moon CK, Lee GH, Kim HJ, Chi Y, Kim JJ, Adv. Mater., 28(13), 2526 (2016)

[11] Kim WYKTG, Sool OH, Kim YH, Trans. Electr. Electron. Mater., 11(2), 85 (2010)

[12] Kim YH, Kim WY, Moon CB, J. Appl. Phys., 110(3), 034501 (2011)

[13] Yang SH, Huang SF, Chang CH, Chung CH, J. Lumines., 131(10), 2106 (2011)

[14] Lin HP, Zhou F, Li J, Zhang XW, Yu DB, Zhang L, Jiang XY, Zhang ZL, J. Ind. Eng. Chem., 17(4), 675 (2011)

[15] He SJ, Wang ZB, Wang DK, Jiang N, Lu ZH, Appl. Phys. Lett., 103(8) (2013)

[16] Mantarcı A, Gunduz B, Opt. Quantum Electron., 48(12) (2016)

[17] Ho MH, Wu YS, Wen SW, Lee MT, Chen TM, Chen CH, Kwok KC, So SK, Yeung KT, Cheng YK, Gao ZQ, Appl. Phys. Lett., 89(25), 252903 (2006)

[18] Yu LZ, Jiang XY, Zhang ZL, Lou LR, Lee CT, J. Appl. Phys., 105(1), 013105 (2009)