Fullerene-doped hole transport molecular films for organic light-emitting diodes

被引：32

作者：

Yuan, Y ^{[1
]}

Grozea, D ^{[1
]}

Lu, ZH ^{[1
]}

机构：

[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 14期

关键词：

D O I：

10.1063/1.1899241

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

C-60-doped N,N-'-bis(l-naphthyl)-N, N-'-diphenyl-1, 1(')-biphenyl-4, 4(')-diamine(NPB) film is studied as hole injection layer between indium tin oxide (ITO) and NPB. The doped films on ITO substrates were found to be thermally stable after being annealed at temperatures up to 120 degrees C. This was attributed to a strong interaction between NPB and C-60 providing a dipole force crosslinking NPB molecules, similar to a crosslinked thermoset polymer networks. Furthermore, the C-60-doped NPB p-type hole injection layers yield devices having better efficiency and low driving voltage as compared with standard devices with CuPc as the hole injection layers. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 10 条

[1] Anode interfacial engineering approaches to enhancing anode/hole transport layer interfacial stability and charge injection efficiency in organic light-emitting diodes [J].

Cui, J ;

Huang, QL ;

Veinot, JCG ;

Yan, H ;

Wang, QW ;

Hutchison, GR ;

Richter, AG ;

Evmenenko, G ;

Dutta, P ;

Marks, TJ .

LANGMUIR, 2002, 18 (25) :9958-9970

[2] Tuning the carrier injection efficiency for organic light-emitting diodes [J].

Forsythe, EW ;

Abkowitz, MA ;

Gao, YL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (16) :3948-3952

[3] OBSERVATION OF CRYSTALLIZATION OF VAPOR-DEPOSITED TPD FILMS BY AFM AND FFM [J].

HAN, EM ;

DO, LM ;

NIIDOME, Y ;

FUJIHIRA, M .

CHEMISTRY LETTERS, 1994, (05) :969-972

[4] Combined photoemission/in vacuo transport study of the indium tin oxide/copper phthalocyanine/N,N′-diphenyl-N,N′-bis(l-naphthyl)-1,1′biphenyl-4,4"diamine molecular organic semiconductor system [J].

Hill, IG ;

Kahn, A .

JOURNAL OF APPLIED PHYSICS, 1999, 86 (04) :2116-2122

[5]

HUNG L, Patent No. 5776622

[6] Optical spectroscopy of C60 complexes. [J].

Konarev, DV ;

Lyubovskaya, RN ;

Drichko, NV ;

Semkin, VN ;

Graja, A .

SYNTHETIC METALS, 1999, 103 (1-3) :2466-2469

[7] Photostability and morphological stability of hole transporting materials used in organic electroluminescence [J].

Qiu, Y ;

Qiao, J .

THIN SOLID FILMS, 2000, 372 (1-2) :265-270

[8] INTERACTION OF C-60 AND C-70 WITH AROMATIC-AMINES IN THE GROUND AND EXCITED-STATES - EVIDENCE FOR FULLERENE BENZENE INTERACTION IN THE GROUND-STATE [J].

SESHADRI, R ;

RAO, CNR ;

PAL, H ;

MUKHERJEE, T ;

MITTAL, JP .

CHEMICAL PHYSICS LETTERS, 1993, 205 (4-5) :395-398

[9] Organic electroluminescent devices with improved stability [J].

VanSlyke, SA ;

Chen, CH ;

Tang, CW .

APPLIED PHYSICS LETTERS, 1996, 69 (15) :2160-2162

[10] Interaction between organic semiconductors and LiF dopant [J].

Yuan, Y ;

Grozea, D ;

Han, S ;

Lu, ZH .

APPLIED PHYSICS LETTERS, 2004, 85 (21) :4959-4961

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