Evidence for Chemical and Electronic Nonuniformities in the Formation of the Interface of RbF-Treated Cu(In,Ga)Se2 with CdS

被引：27

作者：

Nicoara, Nicoleta ^{[1
]}

Kunze, Thomas ^{[2
]}

Jackson, Philip ^{[3
]}

Hariskos, Dimitrios ^{[3
]}

Duarte, Roberto Felix ^{[2
]}

Wilks, Regan G. ^{[2
,4
]}

Witte, Wolfram ^{[3
]}

Baer, Marcus ^{[2
,4
,5
]}

Sadewasser, Sascha ^{[1
]}

机构：

[1] Int Iberian Nanotechnol Lab INL, P-4715330 Braga, Portugal

[2] Helmholtz Zentrum Berlin Mat & Energie GmbH HZB, Renewable Energy, D-14109 Berlin, Germany

[3] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, D-70563 Stuttgart, Germany

[4] Helmholtz Zentrum Berlin Mat & Energie GmbH, Energy Mat In Situ Lab Berlin EMIL, D-12489 Berlin, Germany

[5] Brandenburg Tech Univ Cottbus Senftenberg, Inst Phys, D-03046 Cottbus, Germany

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 50期

关键词：

chalcopyrite; thin-film solar cells; alkali fluoride postdeposition treatment's; Kelvin probe force microscopy; surface photovoltage; photoelectron spectroscopy; FILM SOLAR-CELLS; POSTDEPOSITION TREATMENT; BAND ALIGNMENT; THIN-FILMS; KF;

D O I：

10.1021/acsami.7b12448

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on the initial stages of CdS buffer layer formation on Cu(In,Ga)Se-2 (CIGSe) thin-film solar cell absorbers subjected to rubidium fluoride (RIDE) postdeposition treatment (PDT). A detailed characterization of the CIGSe/CdS interface for different chemical bath deposition (CBD) times of the CdS layer is obtained from spatially resolved atomic and Kelvin probe force microscopy and laterally integrating X-ray,spectroscopies. The observed spatial inhomogeneity in the interface's structural, chemical, and electronic properties of samples undergoing up to 3 min of CBD treatments is indicative of a Complex interface formation including an incomplete coverage and/or nonuniform composition of the buffer layer. It is expected that this result impacts solar cell performance, in particular when reducing the CdS layer thickness (e.g., in an attempt to increase the collection in the ultraviolet wavelength region). Our work provides important findings on the absorber/buffer interface formation and reveals the underlying mechanism for limitations in the reduction of the CdS thickness, even when an alkali PDT is applied to the CIGSe absorber.

引用

页码：44173 / 44180

页数：8

共 50 条

[41] A crystallographic description of experimentally identified formation reactions of Cu(In,Ga)Se2 [J].

Hergert, F. ;

Jost, S. ;

Hock, R. ;

Purwins, M. .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (08) :2394-2415

[42] Interface engineering of Cu(In,Ga)Se2 and atomic layer deposited Zn(O,S) heterojunctions [J].

Schmidt, Sebastian S. ;

Merdes, Saoussen ;

Steigert, Alexander ;

Klenk, Reiner ;

Kaufmann, Christian A. ;

Sanli, Ekin Simsek ;

van Aken, Peter A. ;

Oertel, Mike ;

Schneikart, Anja ;

Dimmler, Bernhard ;

Schlatmann, Rutger .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2017, 56 (08)

[43] Electronic structure of the Zn(O,S)/Cu(In,Ga)Se2 thin-film solar cell interface [J].

Mezher, Michelle ;

Garris, Rebekah ;

Mansfield, Lorelle M. ;

Horsley, Kimberly ;

Weinhardt, Lothar ;

Duncan, Douglas A. ;

Blum, Monika ;

Rosenberg, Samantha G. ;

Baer, Marcus ;

Ramanathan, Kannan ;

Heske, Clemens .

PROGRESS IN PHOTOVOLTAICS, 2016, 24 (08) :1142-1148

[44] Real-time study of Ga diffusion processes during the formation of Cu (In,Ga)Se2: The role of Cu and Na content [J].

Rodriguez-Alvarez, H. ;

Mainz, R. ;

Caballero, R. ;

Abou-Ras, D. ;

Klaus, M. ;

Gledhill, S. ;

Weber, A. ;

Kaufmann, C. A. ;

Schock, H. -W. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2013, 116 :102-109

[45] Study of defect properties and recombination mechanism in rubidium treated Cu(In, Ga)Se2 solar cells [J].

Tangara, Hamidou ;

Zahedi-Azad, Setareh ;

Not, Jennifer ;

Schick, Jakob ;

Lafuente-Sampietro, Alban ;

Islam, Muhammad Monirul ;

Scheer, Roland ;

Sakurai, Takeaki .

JOURNAL OF APPLIED PHYSICS, 2021, 129 (18)

[46] Revealing surface modifications of caesium indium selenium treated Cu-rich Cu(In,Ga)Se2: A study of the suppression of the interfacial recombination [J].

Cheng, Shiqing ;

Zhang, Kaizhi ;

Chen, Jingwei ;

Lin, Shuping ;

Yao, Yifeng ;

Sun, Yun ;

Liu, Wei .

APPLIED SURFACE SCIENCE, 2023, 616

[47] Coatings on Textiles for Cu(In,Ga)Se2 Photovoltaic Cell Formation on Textile Carriers: Preparation of Cu(In,Ga)Se2 Solar Cells on Glass-Fiber Textiles [J].

Knittel, Dierk ;

Koentges, Marc ;

Heinemeyer, Frank ;

Schollmeyer, Eckhard .

JOURNAL OF APPLIED POLYMER SCIENCE, 2010, 115 (05) :2763-2766

[48] Effect of an additional Cu-deficient layer deposition on alkali treated Cu(In, Ga)Se2 solar cells deposited at low temperature [J].

Sadono, Adiyudha ;

Hino, Masashi ;

Nakada, Kazuyoshi ;

Yamada, Akira .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2018, 184 :67-72

[49] Silver Surface Treatment of Cu(In,Ga)Se2(CIGS) Thin Film: A New Passivation Process for the CdS/CIGS Heterojunction Interface [J].

Zhang, Yunxiang ;

Hu, Zhaojing ;

Lin, Shuping ;

Wang, Chaojie ;

Cheng, Shiqing ;

He, Zhichao ;

Zhou, Zhiqiang ;

Sun, Yun ;

Liu, Wei .

SOLAR RRL, 2020, 4 (10)

[50] Semi-quantitative and non-destructive analysis of impurities at a buried interface:: Na and the CdS/Cu(In,Ga)Se2 heterojunction [J].

Heske, C ;

Eich, D ;

Fink, R ;

Umbach, E ;

van Buuren, T ;

Bostedt, C ;

Kakar, S ;

Terminello, LJ ;

Grush, MM ;

Callcott, TA ;

Himpsel, FJ ;

Ederer, DL ;

Perera, RCC ;

Riedl, W ;

Karg, F .

SURFACE AND INTERFACE ANALYSIS, 2000, 30 (01) :459-463

← 1 2 3 4 5 →