Localization of Na impurities at the buried CdS/Cu(In, Ga)Se2 heterojunction

被引：31

作者：

Heske, C ^{[2
]}

Eich, D

Fink, R

Umbach, E

Kakar, S

van Buuren, T

Bostedt, C

Terminello, LJ

Grush, MM

Callcott, TA

Himpsel, FJ

Ederer, DL

Perera, RCC

Riedl, W

Karg, F

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Sight Source, Berkeley, CA 94720 USA

[2] Univ Wurzburg, D-97074 Wurzburg, Germany

[3] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[4] Univ Tennessee, Knoxville, TN 37996 USA

[5] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[6] Tulane Univ, New Orleans, LA 70118 USA

[7] Siemens AG, Corp Res & Dev, D-80807 Munich, Germany

[8] Siemens Solar GmbH, D-80807 Munich, Germany

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 14期

关键词：

D O I：

10.1063/1.124923

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a general approach to identify and locate minority species at buried interfaces which are of fundamental interest in many fields of solid state research. The approach combines soft x-ray emission for bulk and photoelectron spectroscopy for surface sensitivity. In the present study, the interface between a thin CdS layer and a Cu(In, Ga)Se-2 thin film solar cell absorber has been investigated, showing that Na impurities are localized at the buried CdS/Cu(In, Ga)Se-2 heterojunction. (C) 1999 American Institute of Physics. [S0003-6951(99)02740-0].

引用

页码：2082 / 2084

页数：3

共 14 条

[1]

[Anonymous], PHOT SPEC C IEEE

[2]

CALLCOTT TA, 1998, EXPT METHODS PHYSICA, V32, P279

[3] Influence of Na and H2O on the surface properties of Cu(In,Ga)Se, thin films [J].

Heske, C ;

Richter, G ;

Chen, ZH ;

Fink, R ;

Umbach, E ;

Riedl, W ;

Karg, F .

JOURNAL OF APPLIED PHYSICS, 1997, 82 (05) :2411-2420

[4] Na-induced effects on the electronic structure and composition of Cu(In,Ga)Se-2 thin-film surfaces [J].

Heske, C ;

Fink, R ;

Umbach, E ;

Riedl, W ;

Karg, F .

APPLIED PHYSICS LETTERS, 1996, 68 (24) :3431-3433

[5] Observation of intermixing at the buried CdS/Cu(In,Ga)Se2 thin film solar cell heterojunction [J].

Heske, C ;

Eich, D ;

Fink, R ;

Umbach, E ;

van Buuren, T ;

Bostedt, C ;

Terminello, LJ ;

Kakar, S ;

Grush, MM ;

Callcott, TA ;

Himpsel, FJ ;

Ederer, DL ;

Perera, RCC ;

Riedl, W ;

Karg, F .

APPLIED PHYSICS LETTERS, 1999, 74 (10) :1451-1453

[6]

Heske C., 1996, CRYST RES TECHNOL, V31, P919

[7]

Kronik L, 1998, ADV MATER, V10, P31, DOI 10.1002/(SICI)1521-4095(199801)10:1<31::AID-ADMA31>3.0.CO

[8]

2-3

[9] Direct evidence of Cd diffusion into Cu(In,Ga)Se2 thin films during chemical-bath deposition process of CdS films [J].

Nakada, T ;

Kunioka, A .

APPLIED PHYSICS LETTERS, 1999, 74 (17) :2444-2446

[10] Na impurity chemistry in photovoltaic CIGS thin films: Investigation with x-ray photoelectron spectroscopy [J].

Niles, DW ;

Ramanathan, K ;

Hasoon, F ;

Noufi, R ;

Tielsch, BJ ;

Fulghum, JE .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1997, 15 (06) :3044-3049

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