Electronic functionalization of the surface of organic semiconductors with self-assembled monolayers

被引：186

作者：

Calhoun, M. F. ^{[1
]}

Sanchez, J. ^{[1
]}

Olaya, D. ^{[1
]}

Gershenson, M. E. ^{[1
]}

Podzorov, V. ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

来源：

NATURE MATERIALS | 2008年 / 7卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1038/nmat2059

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Self-assembled monolayers (SAMs) are widely used in a variety of emerging applications for surface modification of metals and oxides. Here, we demonstrate a new type of molecular self-assembly: the growth of organosilane SAMs at the surface of organic semiconductors. Remarkably, SAM growth results in a pronounced increase of the surface conductivity of organic materials, which can be very large for SAMs with a strong electron-withdrawing ability. For example, the conductivity induced by perfluorinated alkyl silanes in organic molecular crystals approaches 10(-5) S per square, two orders of magnitude greater than the maximum conductivity typically achieved in organic field-effect transistors. The observed large electronic effect opens new opportunities for nanoscale surface functionalization of organic semiconductors with molecular self-assembly. In particular, SAM-induced conductivity shows sensitivity to different molecular species present in the environment, which makes this system very attractive for chemical sensing applications.

引用

页码：84 / 89

页数：6

共 32 条

[1] Control of threshold voltage in pentacene thin-film transistors using carrier doping at the charge-transfer interface with organic acceptors [J].

Abe, Y ;

Hasegawa, T ;

Takahashi, Y ;

Yamada, T ;

Tokura, Y .

APPLIED PHYSICS LETTERS, 2005, 87 (15) :1-3

[2] Towards molecular electronics with large-area molecular junctions [J].

Akkerman, HB ;

Blom, PWM ;

de Leeuw, DM ;

de Boer, B .

NATURE, 2006, 441 (7089) :69-72

[3] Patterning organic single-crystal transistor arrays [J].

Briseno, Alejandro L. ;

Mannsfeld, Stefan C. B. ;

Ling, Mang M. ;

Liu, Shuhong ;

Tseng, Ricky J. ;

Reese, Colin ;

Roberts, Mark E. ;

Yang, Yang ;

Wudl, Fred ;

Bao, Zhenan .

NATURE, 2006, 444 (7121) :913-917

[4] Controlling charge injection in organic electronic devices using self-assembled monolayers [J].

Campbell, IH ;

Kress, JD ;

Martin, RL ;

Smith, DL ;

Barashkov, NN ;

Ferraris, JP .

APPLIED PHYSICS LETTERS, 1997, 71 (24) :3528-3530

[5] 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

[6] Electronic sensing of vapors with organic transistors [J].

Crone, B ;

Dodabalapur, A ;

Gelperin, A ;

Torsi, L ;

Katz, HE ;

Lovinger, AJ ;

Bao, Z .

APPLIED PHYSICS LETTERS, 2001, 78 (15) :2229-2231

[7] Influence of the gate leakage current on the stability of organic single-crystal field-effect transistors [J].

de Boer, RWI ;

Iosad, NN ;

Stassen, AF ;

Klapwijk, TM ;

Morpurgo, AF .

APPLIED PHYSICS LETTERS, 2005, 86 (03) :1-3

[8] Organic single-crystal field-effect transistors [J].

de Boer, RWI ;

Gershenson, ME ;

Morpurgo, AF ;

Podzorov, V .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (06) :1302-1331

[9] Gate dielectrics for organic field-effect transistors: New opportunities for organic electronics [J].

Facchetti, A ;

Yoon, MH ;

Marks, TJ .

ADVANCED MATERIALS, 2005, 17 (14) :1705-1725

[10] Colloquium: Electronic transport in single-crystal organic transistors [J].

Gershenson, M. E. ;

Podzorov, V. ;

Morpurgo, A. F. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (03) :973-989

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