Electronic structure of interfaces between copper-hexadecafluoro-phthalocyanine and 2,5-bis(4-biphenylyl) bithiophene

被引：47

作者：

Gao, Yongli

Ding, Huanjun

Wang, Haibo

Yan, Donghang

机构：

[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 14期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2784944

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The interfaces formed between copper-hexadecafluoro-phthalocyanine (F16CuPc) and 2,5-bis(4-biphenylyl) bithiophene (BP2T) were examined using photoemission and inverse photoemission spectroscopy. It is observed that in F16CuPc/BP2T the heterojunction is characterized by band bending in both materials, while in BP2T/F16CuPc the band bending is confined in BP2T only. The combination of the band bending and finite Debye lengths provides an explanation to the observed ambipolar behavior of the organic thin film transistors based on such heterojunctions. (C) 2007 American Institute of Physics.

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页数：3

相关论文

共 16 条

[1] General observation of n-type field-effect behaviour in organic semiconductors [J].

Chua, LL ;

Zaumseil, J ;

Chang, JF ;

Ou, ECW ;

Ho, PKH ;

Sirringhaus, H ;

Friend, RH .

NATURE, 2005, 434 (7030) :194-199

[2] ORGANIC HETEROSTRUCTURE FIELD-EFFECT TRANSISTORS [J].

DODABALAPUR, A ;

KATZ, HE ;

TORSI, L ;

HADDON, RC .

SCIENCE, 1995, 269 (5230) :1560-1562

[3] Interface analysis of naphthyl-substituted benzidine derivative and tris-8-(hydroxyquinoline) aluminum using ultraviolet and x-ray photoemission spectroscopy [J].

Forsythe, EW ;

Choong, VE ;

Le, TQ ;

Gao, YL .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (06) :3429-3432

[4]

Horowitz G, 1998, ADV MATER, V10, P365, DOI 10.1002/(SICI)1521-4095(199803)10:5<365::AID-ADMA365>3.0.CO

[5]

2-U

[6] Synthesis of thiophene/phenylene co-oligomers. II. Block and alternating co-oligomers [J].

Hotta, S ;

Kimura, H ;

Lee, SA ;

Tamaki, T .

JOURNAL OF HETEROCYCLIC CHEMISTRY, 2000, 37 (02) :281-286

[7] Ultralow-power organic complementary circuits [J].

Klauk, Hagen ;

Zschieschang, Ute ;

Pflaum, Jens ;

Halik, Marcus .

NATURE, 2007, 445 (7129) :745-748

[8] Interfacial electronic structure of copper phthalocyanine and copper hexadecafluorophthalocyanine studied by photoemission [J].

Lau, KM ;

Tang, JX ;

Sun, HY ;

Lee, CS ;

Lee, ST ;

Yan, DH .

APPLIED PHYSICS LETTERS, 2006, 88 (17)

[9] High-resolution band-pass photon detector for inverse-photoemission spectroscopy [J].

Namatame, H ;

Tamura, M ;

Nakatake, M ;

Sato, H ;

Ueda, Y ;

Taniguchi, M ;

Fujisawa, M .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1996, 80 :393-396

[10] Electronic structure, diffusion, and p-doping at the Au/F16CuPc interface [J].

Shen, C ;

Kahn, A .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (09) :4549-4554