Suppression of device degradation mechanism by triphenylsilyl group substitution of the host for blue phosphorescent organic light-emitting diodes

Sung Yong Byeon; Kyung Hyung Lee; Jun Yeob Lee

Journal of Industrial and Engineering Chemistry, Vol.86, 144-149, June, 2020

DOI10.1016/j.jiec.2020.02.021 Export Citation

Suppression of device degradation mechanism by triphenylsilyl group substitution of the host for blue phosphorescent organic light-emitting diodes

Sung Yong Byeon, Kyung Hyung Lee, and Jun Yeob Lee^†

School of Chemical Engineering, Sungkyunkwan University, Jangan-gu, 2066, Seobu-ro, Gyeonggi-do, 16419, Republic of Korea

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The effect of triphenylsilyl group substitution in the host materials for blue phosphorescent organic lightemitting diodes was studied by synthesizing two hole transport type hosts with and without the triphenylsilyl group in the identical backbone structure. The two host materials were applied as the hosts of blue phosphorescent emitter and the comparison of the emission behavior of the two hosts revealed that the triphenylsilyl group suppressed triplet exciton quenching of the blue phosphorescent emitters. As a result, the blue host with the triphenylsilyl group showed improved device efficiency and extended device lifetime in the blue phosphorescent devices. The blue phosphorescent device with the triphenylsilyl group substituted host showed improved external quantum efficiency and elongated device lifetime compared to the triphenylsilyl free host based device. The bulky triphenylsilyl group was effective to extend the device lifetime of the blue phosphorescent device through reduced triplet exciton induced annihilation.

Keywords:Blue device;Phosphorescent host;Device lifetime;Host

[References]

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Adachi C, Baldo MA, Thompson ME, Forrest SR, J. Appl. Phys., 90, 5048 (2001)
Wang Y, Wang W, Huang Z, Wang H, Zhao J, Yu J, Ma D, J. Mater. Chem. C, 6, 7042 (2018)
Kim DH, Cho NS, Oh HY, Yang JH, Jeon WS, Park JS, Suh MC, Kwon FH, Adv. Mater., 23(24), 2721 (2011)
Chen HF, Yang SJ, Tsai ZH, Hung WY, Wang TC, Wong KT, J. Mater. Chem., 19, 8112 (2009)
Sasabe H, Nakanishi H, Watanabe Y, Yano S, Hirasawa M, Pu YJ, Kido J, Adv. Funct. Mater., 23(44), 5550 (2013)
Zhang Y, Lee J, Forrest SR, Nat. Commun., 5, 5008 (2014)
Shin SK, Byeon SY, Han SH, Lee JY, Adv. Opt. Mater., 6, 170100 (2018)
Lee J, Jeong C, Batagoda T, Coburn C, Thompson ME, Forrest SR, Nat. Commun., 8, 15566 (2017)
Reineke S, Walzer K, Leo K, Phys. Rev. B, 75, 125328 (2007)
Oh CS, Lee JY, Noh CH, Kim SH, J. Mater. Chem. C, 4, 3792 (2016)
King SM, Cass M, Pintani M, Coward C, Dias FB, Monkman AP, Roberts M, J. Appl. Phys., 109, 074502 (2011)
Song W, Kim T, Lee Y, Lee JY, J. Mater. Chem. C, 5, 3948 (2017)
Giebink NC, D’Andrade BW, Weaver MS, Mackenzie PB, Brown JJ, Thompson ME, Forrest SR, J. Appl. Phys., 103, 044509 (2008)
Zhang D, Cai M, Zhang Y, Zhang D, Duan L, Mater. Horiz., 3, 145 (2016)
Yeh SJ, Wu MF, Chen CT, Song YH, Chi Y, Ho MH, Hsu SF, Chen CH, Adv. Mater., 17(3), 285 (2005)
Tsai MH, Lin HW, Su HC, Ke TH, Wu CC, Fang FC, Liao YL, Wong KT, Wu CI, Adv. Mater., 18(9), 1216 (2006)
Yu JG, Byeon SY, Han SH, Lee JY, Chem. Eur. J., 23, 16044 (2017)
Li Q, Cui LS, Zhong C, Jiang ZQ, Liao LS, Org. Lett., 16, 1622 (2014)
Liu H, Chen P, Hu D, Tang X, Pan Y, Zhang H, Zhang W, Han X, Bai Q, Lu P, Ma Y, Chem. Eur. J., 20, 2149 (2014)
Vecchi PA, Padmaperuma AB, Qiao H, Sapochak LS, Burrows PE, Org. Lett., 8, 4211 (2006)
Han C, Xie G, Li J, Zhang Z, Xu H, Deng Z, Zhao Y, Yan P, Liu S, Chem. Eur. J., 17, 8947 (2011)
Leung MK, Yang WH, Chuang CN, Lee JH, Lin CF, Wei MK, Liu YH, Org. Lett., 14, 4986 (2012)
Byeon SY, Han SH, Lee JY, Adv. Opt. Mater., 6, 170126 (2018)
Giebink NC, D‘Andrade BW, Weaver MS, Mackenzie PB, Brown JJ, Thompson ME, Forrest SR, J. Appl. Phys., 103, 044509 (2008)

[Referenced By]

[1] Baldo MA, O'Brien DF, You Y, Shoustikov A, Sibley S, Thompson ME, Forrest SR, Nature, 395(6698), 151 (1998)

[2] Adachi C, Baldo MA, Thompson ME, Forrest SR, J. Appl. Phys., 90, 5048 (2001)

[3] Wang Y, Wang W, Huang Z, Wang H, Zhao J, Yu J, Ma D, J. Mater. Chem. C, 6, 7042 (2018)

[4] Kim DH, Cho NS, Oh HY, Yang JH, Jeon WS, Park JS, Suh MC, Kwon FH, Adv. Mater., 23(24), 2721 (2011)

[5] Chen HF, Yang SJ, Tsai ZH, Hung WY, Wang TC, Wong KT, J. Mater. Chem., 19, 8112 (2009)

[6] Sasabe H, Nakanishi H, Watanabe Y, Yano S, Hirasawa M, Pu YJ, Kido J, Adv. Funct. Mater., 23(44), 5550 (2013)

[7] Zhang Y, Lee J, Forrest SR, Nat. Commun., 5, 5008 (2014)

[8] Shin SK, Byeon SY, Han SH, Lee JY, Adv. Opt. Mater., 6, 170100 (2018)

[9] Lee J, Jeong C, Batagoda T, Coburn C, Thompson ME, Forrest SR, Nat. Commun., 8, 15566 (2017)

[10] Reineke S, Walzer K, Leo K, Phys. Rev. B, 75, 125328 (2007)

[11] Oh CS, Lee JY, Noh CH, Kim SH, J. Mater. Chem. C, 4, 3792 (2016)

[12] King SM, Cass M, Pintani M, Coward C, Dias FB, Monkman AP, Roberts M, J. Appl. Phys., 109, 074502 (2011)

[13] Song W, Kim T, Lee Y, Lee JY, J. Mater. Chem. C, 5, 3948 (2017)

[14] Giebink NC, D’Andrade BW, Weaver MS, Mackenzie PB, Brown JJ, Thompson ME, Forrest SR, J. Appl. Phys., 103, 044509 (2008)

[15] Zhang D, Cai M, Zhang Y, Zhang D, Duan L, Mater. Horiz., 3, 145 (2016)

[16] Yeh SJ, Wu MF, Chen CT, Song YH, Chi Y, Ho MH, Hsu SF, Chen CH, Adv. Mater., 17(3), 285 (2005)

[17] Tsai MH, Lin HW, Su HC, Ke TH, Wu CC, Fang FC, Liao YL, Wong KT, Wu CI, Adv. Mater., 18(9), 1216 (2006)

[18] Yu JG, Byeon SY, Han SH, Lee JY, Chem. Eur. J., 23, 16044 (2017)

[19] Li Q, Cui LS, Zhong C, Jiang ZQ, Liao LS, Org. Lett., 16, 1622 (2014)

[20] Liu H, Chen P, Hu D, Tang X, Pan Y, Zhang H, Zhang W, Han X, Bai Q, Lu P, Ma Y, Chem. Eur. J., 20, 2149 (2014)

[21] Vecchi PA, Padmaperuma AB, Qiao H, Sapochak LS, Burrows PE, Org. Lett., 8, 4211 (2006)

[22] Han C, Xie G, Li J, Zhang Z, Xu H, Deng Z, Zhao Y, Yan P, Liu S, Chem. Eur. J., 17, 8947 (2011)

[23] Leung MK, Yang WH, Chuang CN, Lee JH, Lin CF, Wei MK, Liu YH, Org. Lett., 14, 4986 (2012)

[24] Byeon SY, Han SH, Lee JY, Adv. Opt. Mater., 6, 170126 (2018)

[25] Giebink NC, D‘Andrade BW, Weaver MS, Mackenzie PB, Brown JJ, Thompson ME, Forrest SR, J. Appl. Phys., 103, 044509 (2008)