Electronic properties of BaCuChF (Ch=S,Se,Te) surfaces and BaCuSeF/ZnPc interfaces

被引：13

作者：

Zakutayev, Andriy ^{[1
]}

Tate, Janet ^{[1
]}

Platt, Heather A. S. ^{[2
]}

Keszler, Douglas A. ^{[2
]}

Hein, Corinna ^{[3
]}

Mayer, Thomas ^{[3
]}

Klein, Andreas ^{[3
]}

Jaegermann, Wolfram ^{[3
]}

机构：

[1] Oregon State Univ, Dept Phys, Corvallis, OR 97331 USA

[2] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA

[3] Tech Univ Darmstadt, Dept Mat & Earth Sci, D-64287 Darmstadt, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 10期

基金：

美国国家科学基金会;

关键词：

PHOTOELECTRON-SPECTROSCOPY; SOLAR-CELLS; THIN-FILMS; DEVICES; OXIDE; PHTHALOCYANINES; HETEROJUNCTION; PHOTOEMISSION; INJECTION; SCIENCE;

D O I：

10.1063/1.3380594

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

BaCuChF (Ch=S,Se,Te) surfaces and BaCuSeF interfaces with zinc phthalocyanine (ZnPc) were studied by photoelectron spectroscopy. BaCuChF compounds oxidize when exposed to ambient atmosphere. Se capping layers were studied as a means to produce representative surfaces for photoelectron spectroscopic measurements. Decapped BaCuSeF surfaces remain O-free and C-free when the Se layer is evaporated but they become F-deficient. The resulting surfaces have work functions of 4.85 eV and Fermi levels located 0.25 eV above the valence band maximum. In situ stepwise deposition of ZnPc on a BaCuSeF film surface produced a chemically inert interface with a hole-injection barrier of 0.11 eV. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3380594]

引用

页数：8

共 33 条

[1]

[Anonymous], THESIS TU DARMSTADT

[2]

Barin I., 2008, Thermochemical Data of Pure Substances, VThird

[3] STUDY BY PHOTOELECTRON-SPECTROSCOPY OF SURFACE DEGRADATION OF FES2, CUFES2 ZNS AND PBS EXPOSED TO AIR AND WATER [J].