Band bending in copper phthalocyanine on hydrogen-passivated Si(111)

被引：37

作者：

Gorgoi, M ^{[1
]}

Zahn, DRT ^{[1
]}

机构：

[1] Tech Univ Chemnitz, Inst Phys, D-09017 Chemnitz, Germany

来源：

ORGANIC ELECTRONICS | 2005年 / 6卷 / 04期

关键词：

copper phthalocyanine; ultraviolet photoemission; inverse photoemission; LUMO; HOMO;

D O I：

10.1016/j.orgel.2005.05.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultraviolet photoemission spectroscopy (UPS) and inverse photoemission spectroscopy (IPES) were employed to study the electronic density of states of copper phthalocyanine (CuPc) layers deposited onto hydrogen passivated Si(111) substrates. The highest occupied and lowest unoccupied molecular orbital (HOMO respectively LUMO) features are found to shift gradually in the same direction with increasing film thickness. At approximately 15 nm, the shifts saturate with a total amount of about 0.4 eV. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：168 / 174

页数：7

共 34 条

[1] INVERSE-PHOTOEMISSION SPECTROSCOPY OF THE UNRECONSTRUCTED, IDEALLY H-TERMINATED SI(111) SURFACE [J].

BOUZIDI, S ;

COLETTI, F ;

DEBEVER, JM ;

THIRY, PA ;

DUMAS, P ;

CHABAL, YJ .

PHYSICAL REVIEW B, 1992, 45 (03) :1187-1192

[2] INFRARED-SPECTROSCOPY OF SI(111) SURFACES AFTER HF TREATMENT - HYDROGEN TERMINATION AND SURFACE-MORPHOLOGY [J].

BURROWS, VA ;

CHABAL, YJ ;

HIGASHI, GS ;

RAGHAVACHARI, K ;

CHRISTMAN, SB .

APPLIED PHYSICS LETTERS, 1988, 53 (11) :998-1000

[3] VARIABLE ANGLE SPECTROSCOPIC ELLIPSOMETRY STUDIES OF ORIENTED PHTHALOCYANINE FILMS .2. COPPER PHTHALOCYANINE [J].

DEBE, MK .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1992, 10 (04) :2816-2821

[4] LOW-VOLTAGE, HIGH-CURRENT ELECTRON-GUN [J].

ERDMAN, PW ;

ZIPF, EC .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1982, 53 (02) :225-227

[5] Ultrathin organic films grown by organic molecular beam deposition and related techniques [J].

Forrest, SR .

CHEMICAL REVIEWS, 1997, 97 (06) :1793-1896

[6]

GORGOI M, 2004, BESSY JAHRESBERICHT, P165

[7] COMPARISON OF SI(111) SURFACES PREPARED USING AQUEOUS-SOLUTIONS OF NH4F VERSUS HF [J].

HIGASHI, GS ;

BECKER, RS ;

CHABAL, YJ ;

BECKER, AJ .

APPLIED PHYSICS LETTERS, 1991, 58 (15) :1656-1658

[8] IDEAL HYDROGEN TERMINATION OF THE SI-(111) SURFACE [J].

HIGASHI, GS ;

CHABAL, YJ ;

TRUCKS, GW ;

RAGHAVACHARI, K .

APPLIED PHYSICS LETTERS, 1990, 56 (07) :656-658

[9] Distinguishing between interface dipoles and band bending at metal/tris-(8-hydroxyquinoline) aluminum interfaces [J].

Hill, IG ;

Mäkinen, AJ ;

Kafafi, ZH .

APPLIED PHYSICS LETTERS, 2000, 77 (12) :1825-1827

[10] Molecular level alignment at organic semiconductor-metal interfaces [J].

Hill, IG ;

Rajagopal, A ;

Kahn, A ;

Hu, Y .

APPLIED PHYSICS LETTERS, 1998, 73 (05) :662-664

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