Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface

S. Wang; Y. Q. Liu; X. B. Huang; S. L. Xu; J. R. Gong; X. H. Chen; L. Yi; Y. Xu; G. Yu; L. J. Wan; C. L. Bai; D. B. Zhu

doi:10.1007/s00339-003-2397-9

Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface

S. Wang, Y. Q. Liu^*, X. B. Huang, S. L. Xu, J. R. Gong, X. H. Chen, L. Yi, Y. Xu, G. Yu, L. J. Wan, C. L. Bai, D. B. Zhu

^*Corresponding author for this work

CAS - Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

By using the Langmuir-Blodgett (LB) technique, well-defined molecular layers of 2,9,16-tri(tert-butyl)-23-(10-hydroxydecyloxy)phthalocyanine were fabricated. These LB films have been employed to modify an anode surface of organic light-emitting devices. The insertion of LB films between an indium tin oxide (ITO) and hole-transport layers leads to an increase in device efficiency as a result of an improvement of the balanced carrier injection. An external quantum efficiency of 0.88% and a brightness of 10840 cd/m² for a device with a structure of ITO/two LB layers/N, N′-diphenyl-N, N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD)/tris(8-hydroquinolinato)aluminium (Alq₃)/Al were obtained, while the external quantum efficiency and brightness for the device without LB layers of ITO/TPD/Alq₃/Al were 0.51% and 5744 cd/m², respectively.

Original language	English
Pages (from-to)	553-556
Number of pages	4
Journal	Applied Physics A: Materials Science and Processing
Volume	78
Issue number	4
DOIs	https://doi.org/10.1007/s00339-003-2397-9
Publication status	Published - Mar 2004
Externally published	Yes

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Wang, S., Liu, Y. Q., Huang, X. B., Xu, S. L., Gong, J. R., Chen, X. H., Yi, L., Xu, Y., Yu, G., Wan, L. J., Bai, C. L., & Zhu, D. B. (2004). Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface. Applied Physics A: Materials Science and Processing, 78(4), 553-556. https://doi.org/10.1007/s00339-003-2397-9

@article{c7fd4ee8f0f74f05818addb811135f18,

title = "Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface",

abstract = "By using the Langmuir-Blodgett (LB) technique, well-defined molecular layers of 2,9,16-tri(tert-butyl)-23-(10-hydroxydecyloxy)phthalocyanine were fabricated. These LB films have been employed to modify an anode surface of organic light-emitting devices. The insertion of LB films between an indium tin oxide (ITO) and hole-transport layers leads to an increase in device efficiency as a result of an improvement of the balanced carrier injection. An external quantum efficiency of 0.88% and a brightness of 10840 cd/m2 for a device with a structure of ITO/two LB layers/N, N′-diphenyl-N, N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD)/tris(8-hydroquinolinato)aluminium (Alq3)/Al were obtained, while the external quantum efficiency and brightness for the device without LB layers of ITO/TPD/Alq3/Al were 0.51% and 5744 cd/m2, respectively.",

author = "S. Wang and Liu, {Y. Q.} and Huang, {X. B.} and Xu, {S. L.} and Gong, {J. R.} and Chen, {X. H.} and L. Yi and Y. Xu and G. Yu and Wan, {L. J.} and Bai, {C. L.} and Zhu, {D. B.}",

year = "2004",

month = mar,

doi = "10.1007/s00339-003-2397-9",

language = "English",

volume = "78",

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journal = "Applied Physics A: Materials Science and Processing",

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Wang, S, Liu, YQ, Huang, XB, Xu, SL, Gong, JR, Chen, XH, Yi, L, Xu, Y, Yu, G, Wan, LJ, Bai, CL & Zhu, DB 2004, 'Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface', Applied Physics A: Materials Science and Processing, vol. 78, no. 4, pp. 553-556. https://doi.org/10.1007/s00339-003-2397-9

TY - JOUR

T1 - Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface

AU - Wang, S.

AU - Liu, Y. Q.

AU - Huang, X. B.

AU - Xu, S. L.

AU - Gong, J. R.

AU - Chen, X. H.

AU - Yi, L.

AU - Xu, Y.

AU - Yu, G.

AU - Wan, L. J.

AU - Bai, C. L.

AU - Zhu, D. B.

PY - 2004/3

Y1 - 2004/3

N2 - By using the Langmuir-Blodgett (LB) technique, well-defined molecular layers of 2,9,16-tri(tert-butyl)-23-(10-hydroxydecyloxy)phthalocyanine were fabricated. These LB films have been employed to modify an anode surface of organic light-emitting devices. The insertion of LB films between an indium tin oxide (ITO) and hole-transport layers leads to an increase in device efficiency as a result of an improvement of the balanced carrier injection. An external quantum efficiency of 0.88% and a brightness of 10840 cd/m2 for a device with a structure of ITO/two LB layers/N, N′-diphenyl-N, N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD)/tris(8-hydroquinolinato)aluminium (Alq3)/Al were obtained, while the external quantum efficiency and brightness for the device without LB layers of ITO/TPD/Alq3/Al were 0.51% and 5744 cd/m2, respectively.

AB - By using the Langmuir-Blodgett (LB) technique, well-defined molecular layers of 2,9,16-tri(tert-butyl)-23-(10-hydroxydecyloxy)phthalocyanine were fabricated. These LB films have been employed to modify an anode surface of organic light-emitting devices. The insertion of LB films between an indium tin oxide (ITO) and hole-transport layers leads to an increase in device efficiency as a result of an improvement of the balanced carrier injection. An external quantum efficiency of 0.88% and a brightness of 10840 cd/m2 for a device with a structure of ITO/two LB layers/N, N′-diphenyl-N, N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD)/tris(8-hydroquinolinato)aluminium (Alq3)/Al were obtained, while the external quantum efficiency and brightness for the device without LB layers of ITO/TPD/Alq3/Al were 0.51% and 5744 cd/m2, respectively.

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U2 - 10.1007/s00339-003-2397-9

DO - 10.1007/s00339-003-2397-9

M3 - Article

AN - SCOPUS:10744230332

SN - 0947-8396

VL - 78

SP - 553

EP - 556

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 4

ER -

Organic light-emitting diodes with improved hole-electron balance by using molecular layers of phthalocyanine to modify the anode surface

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