Direct monitoring of recombination zone shift during lifetime measurement of phosphorescent organic light-emitting diodes

Sang Kyu Jeon; Jun Yeob Lee

Journal of Industrial and Engineering Chemistry, Vol.32, 332-335, December, 2015

DOI10.1016/j.jiec.2015.09.011 Export Citation

Direct monitoring of recombination zone shift during lifetime measurement of phosphorescent organic light-emitting diodes

Sang Kyu Jeon, and Jun Yeob Lee^†

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

E-mail:

Recombination zone of phosphorescent organic light-emitting diodes during lifetime measurement was directly monitored using a red sensing layer inserted at different positions of blue phosphorescent emitting layer. The shift of recombination zone could be identified by the change of red intensity of the red sensing layer because the red intensity reflects the exciton density around the red sensing layer. Gradual shift of the recombination zone from hole transport layer side to electron transport layer side could be directly tracked according to driving time of the device.

Keywords:Lifetime;Recombination zone;Sensing layer;Phosphorescent device

[References]

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Gather MC, Flammich M, Danz N, Michaelis D, Meerholz K, Appl. Phys. Lett., 94, 263301 (2009)
Hsiao C, Chen Y, Lin T, Hsiao C, Lee J, Appl. Phys. Lett., 89, 163511 (2006)
Kalinowski J, Palilis LC, Kim WH, Kafafi ZH, J. Appl. Phys., 94, 7764 (2003)
Zhong GY, Zhang YQ, Cao XA, Org. Electron., 11, 1338 (2010)
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Chopra N, Lee J, Zheng Y, Eom S, Appl. Phys. Lett., 93, 143307 (2008)
Lee S, Ko D, Chung C, Cho SM, Synth. Met., 128, 51 (2002)
Choukri H, Fischer A, Forget S, Chenais S, Castex M, Ades D, Siove A, Geffroy B, Appl. Phys. Lett., 89, 183513 (2006)
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Duan L, Zhang DQ, Wu KW, Huang XQ, Wang LD, Qiu Y, Adv. Funct. Mater., 21(18), 3540 (2011)
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Culligan SW, Chen ACA, Wallace JU, Klubek KP, Tang CW, Chen SH, Adv. Funct. Mater., 16(11), 1481 (2006)
Aziz H, Popovic Z, Tripp CP, Hu N, Appl. Phys. Lett., 72, 2642 (1998)
Aziz H, Popovic Z, Hu N, Hor A, Xu G, Science, 283, 1900 (1999)
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[Referenced By]

[1] Baldo MA, Brian DFO, Thompson ME, Forrest SR, Phys. Rev. B, 60, 14422 (1999)

[2] Erickson NC, Holmes RJ, Adv. Funct. Mater., 23, 5190 (2013)

[3] Kim SH, Jang J, Yook KS, Lee JY, Thin Solid Films, 517(15), 4464 (2009)

[4] Kim SH, Jang J, Yook KS, Lee JY, Appl. Phys. Lett., 92, 023513 (2008)

[5] Xue Q, Xie G, Liu S, Chen P, Zhao Y, Liu S, J. Appl. Phys., 115, 114504 (2014)

[6] Lee J, Lee J, Song K, Lee SJ, Chu HY, Appl. Phys. Lett., 92, 133304 (2008)

[7] Gather MC, Flammich M, Danz N, Michaelis D, Meerholz K, Appl. Phys. Lett., 94, 263301 (2009)

[8] Hsiao C, Chen Y, Lin T, Hsiao C, Lee J, Appl. Phys. Lett., 89, 163511 (2006)

[9] Kalinowski J, Palilis LC, Kim WH, Kafafi ZH, J. Appl. Phys., 94, 7764 (2003)

[10] Zhong GY, Zhang YQ, Cao XA, Org. Electron., 11, 1338 (2010)

[11] Matsumoto N, Adachi C, J. Phys. Chem. C, 114, 4652 (2010)

[12] Chopra N, Lee J, Zheng Y, Eom S, Appl. Phys. Lett., 93, 143307 (2008)

[13] Lee S, Ko D, Chung C, Cho SM, Synth. Met., 128, 51 (2002)

[14] Choukri H, Fischer A, Forget S, Chenais S, Castex M, Ades D, Siove A, Geffroy B, Appl. Phys. Lett., 89, 183513 (2006)

[15] Bhansali US, Jia H, Quevedo-Lopez MA, Gnade BE, Appl. Phys. Lett., 94, 203501 (2009)

[16] Lee J, Lee J, Lee JY, Chu HY, Org. Electron., 10, 1529 (2009)

[17] Lee J, Lee J, Lee JY, Chu HY, Appl. Phys. Lett., 95, 253304 (2009)

[18] Nuesch F, Berner D, Tutis E, Schaer M, Ma CQ, Wang XS, Zhang BW, Niiesch F, Adv. Funct. Mater., 15(2), 323 (2005)

[19] Duan L, Zhang DQ, Wu KW, Huang XQ, Wang LD, Qiu Y, Adv. Funct. Mater., 21(18), 3540 (2011)

[20] Meerheim R, Scholz S, Olthof S, Schwartz G, Reineke S, Walzer K, Leo K, Appl. Phys. Lett., 104, 014510 (2008)

[21] Culligan SW, Chen ACA, Wallace JU, Klubek KP, Tang CW, Chen SH, Adv. Funct. Mater., 16(11), 1481 (2006)

[22] Aziz H, Popovic Z, Tripp CP, Hu N, Appl. Phys. Lett., 72, 2642 (1998)

[23] Aziz H, Popovic Z, Hu N, Hor A, Xu G, Science, 283, 1900 (1999)

[24] Turak A, RSC Adv., 3, 6188 (2013)

[25] Wang Q, Luo Y, Aziz H, Appl. Phys. Lett., 97, 063309 (2010)