Impact of a RbF Postdeposition Treatment on the Electronic Structure of the CdS/Cu(In,Ga)Se2 Heterojunction in High-Efficiency Thin-Film Solar Cells

被引：81
|
作者：
Hauschild, D. [1 ,2 ,3 ]
Kreikemeyer-Lorenzo, D. [1 ]
Jackson, P. [4 ]
Friedlmeier, T. Magorian [4 ]
Hariskos, D. [4 ]
Reiner, F. [3 ]
Powalla, M. [4 ]
Heske, C. [1 ,2 ,5 ]
Weinhardt, L. [1 ,2 ,5 ]
机构：
[1] Karlsruhe Inst Technol, Inst Photon Sci & Synchrotron Radiat IPS, Hermann v Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
[2] Karlsruhe Inst Technol, Inst Chem Technol & Polymer Chem ITCP, Engesserstr 18-20, D-76128 Karlsruhe, Germany
[3] Univ Wurzburg, Expt Phys 7, D-97074 Wurzburg, Germany
[4] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, Meitnerstr 1, D-70563 Stuttgart, Germany
[5] Univ Nevada, Dept Chem & Biochem, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA
来源：
ACS ENERGY LETTERS | 2017年 / 2卷 / 10期
关键词：
BAND ALIGNMENT; CD2+/NH3 TREATMENT; SURFACE; PERFORMANCE; INTERFACE; MODULES;
D O I：
10.1021/acsenergylett.7b00720
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：
Recently, a world-record efficiency of 22.6% was achieved by applying a RbF postdeposition treatment (PDT) on a Cu(In,Ga)Se-2 (CIGSe) thin-film solar cell absorber surface. Here, we study the impact of this RbF-PDT on the electronic structure of the CIGSe surface and the CdS/CIGSe interface using ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS), as well as inverse photoemission spectroscopy (IPES). After RbF-PDT, we find a small downward shift of the band edges, while the surface band gap value itself is not affected. In addition, a further downward band bending in the CIGSe absorber is observed upon formation of the RbF-PDT CdS/CIGSe interface. We derive a flat conduction band alignment between the RbF-PDT CIGSe absorber and the CdS buffer, commensurate with the high efficiencies of solar cell devices prepared with RbF-PDT.
引用
收藏
页码：2383 / 2387
页数：5
相关论文
共 50 条
  • [21] Decay mechanisms in CdS-buffered Cu(In,Ga)Se2 thin-film solar cells after exposure to thermal stress: Understanding the role of Na
    Yetkin, Hasan A.
    Kodalle, Tim
    Bertram, Tobias
    Villanueva-Tovar, Alejandra
    Rusu, Marin
    Klenk, Reiner
    Szyszka, Bernd
    Schlatmann, Rutger
    Kaufmann, Christian A.
    PROGRESS IN PHOTOVOLTAICS, 2021, 29 (09): : 1034 - 1053
  • [22] High efficiency cadmium free Cu(In,Ga)Se2 thin film solar cells terminated by an electrodeposited front contact
    Rousset, Jean
    Donsanti, Frederique
    Genevee, Pascal
    Renou, Gilles
    Lincot, D.
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2011, 95 (06) : 1544 - 1549
  • [23] Effects of Ammonia-Induced Surface Modification of Cu(In,Ga)Se2 on High-Efficiency Zn(O,S)-Based Cu(In,Ga)Se2 Solar Cells
    Li, Jianmin
    Ma, Yaping
    Chen, Guilin
    Gong, Junbo
    Wang, Xiaomin
    Kong, Yifan
    Ma, Xuhang
    Wang, Kedong
    Li, Weimin
    Yang, Chunlei
    Xiao, Xudong
    SOLAR RRL, 2019, 3 (02)
  • [24] Silver Surface Treatment of Cu(In,Ga)Se2(CIGS) Thin Film: A New Passivation Process for the CdS/CIGS Heterojunction Interface
    Zhang, Yunxiang
    Hu, Zhaojing
    Lin, Shuping
    Wang, Chaojie
    Cheng, Shiqing
    He, Zhichao
    Zhou, Zhiqiang
    Sun, Yun
    Liu, Wei
    SOLAR RRL, 2020, 4 (10)
  • [25] Effects of the incorporation of alkali elements on Cu(In,Ga)Se2 thin film solar cells
    Shin, Donghyeop
    Kim, Jekyung
    Gershon, Talia
    Mankad, Ravin
    Hopstaken, Marinus
    Guha, Supratik
    Ahn, Byung Tae
    Shin, Byungha
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2016, 157 : 695 - 702
  • [26] Influences of donor defect passivation on the performance of Cu(In,Ga)Se2 thin-film solar cell
    Zhang, LinRui
    Li, Tong
    Chen, YiChuan
    Pang, Wei
    Qu, MingHao
    Song, XueMei
    Zhang, YongZhe
    Yan, Hui
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 29 (04) : 3482 - 3491
  • [27] Efficiency increased to 15.2% for ultra-thin Cu(In,Ga)Se2 solar cells
    Mansfield, Lorelle M.
    Kanevce, Ana
    Harvey, Steven P.
    Bowers, Karen
    Beall, Carolyn
    Glynn, Stephen
    Repins, Ingrid L.
    PROGRESS IN PHOTOVOLTAICS, 2018, 26 (11): : 949 - 954
  • [28] THE EFFECT OF ZnO REPLACEMENT BY ZnMgO ON ZnO/CdS/Cu(In,Ga)Se2 SOLAR CELLS
    Li, Jian V.
    Li, Xiaonan
    Kanevce, Ana
    Yan, Yanfa
    Repins, Ingrid
    2009 34TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-3, 2009, : 86 - 89
  • [29] Intense sulphurization process can lead to superior heterojunction properties in Cu(In,Ga)(S,Se)2 thin-film solar cells
    Cojocaru-Miredin, Oana
    Ghorbani, Elaheh
    Raghuwanshi, Mohit
    Jin, Xiaowei
    Pandav, Dipak
    Keutgen, Jens
    Schneider, Reinhard
    Gerthsen, Dagmar
    Albe, Karsten
    Scheer, Roland
    NANO ENERGY, 2021, 89 (89)
  • [30] X-Ray and Electron Spectroscopy of the CdS/(Ag,Cu)(In,Ga)Se2 Interface With RbF Treatment
    Hauschild, Dirk
    Both, Luisa
    Blankenship, Mary
    Wansorra, Constantin
    Steininger, Ralph
    Yang, Wanli
    Hariskos, Dimitrios
    Witte, Wolfram
    Gutzler, Rico
    Powalla, Michael
    Heske, Clemens
    Weinhardt, Lothar
    ADVANCED MATERIALS INTERFACES, 2025,
12345