TITLE

Influence of Na on Cu(In,Ga)Se2 solar cells grown on polyimide substrates at low temperature: Impact on the Cu(In,Ga)Se2/Mo interface

AUTHOR(S)
Caballero, R.; Kaufmann, C. A.; Eisenbarth, T.; Grimm, A.; Lauermann, I.; Unold, T.; Klenk, R.; Schock, H. W.
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p092104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
There are still open questions regarding the nature of the positive effect of the presence of Na on the performance of Cu(In,Ga)Se2 based, chalcopyrite thin film solar cells, especially at low processing temperatures. Studying Cu(In,Ga)Se2 thin film devices fabricated from low-temperature coevaporated absorbers on polyimide substrates by admittance and J-V-T measurements, characteristic properties are identified for different amounts of Na present during the growth. A roll-over behavior can be directly correlated with the Na-content. X-ray photoelectron spectroscopy shows the development of a MoSe2 phase at the back contact of the device. Efficiencies of 15.1% with MgF2 antireflection coating are demonstrated.
ACCESSION #
48429003

 

Related Articles

  • Anomalous behavior of silver doped indium sulfide thin films. Mathew, Meril; Jayakrishnan, R.; Ratheesh Kumar, P. M.; Sudha Kartha, C.; Vijayakumar, K. P.; Kashiwaba, Y.; Abe, T. // Journal of Applied Physics;8/1/2006, Vol. 100 Issue 3, p033504 

    The effect of doping spray pyrolyzed thin films of In2S3 with silver is discussed. It was observed that silver diffused into In2S3 films in as deposited condition itself. Depth profile using x-ray photoelectron spectroscopy clearly showed diffusion of silver into In2S3 layer without any...

  • Intermixing at the heterointerface between ZnS/Zn(S,O) bilayer buffer and CuInS2 thin film solar cell absorber. Bär, M.; Ennaoui, A.; Klaer, J.; Kropp, T.; Sáez-Araoz, R.; Lehmann, S.; Grimm, A.; Lauermann, I.; Loreck, Ch.; Sokoll, St.; Schock, H.-W.; Fischer, Ch.-H.; Lux-Steiner, M. C.; Jung, Ch. // Journal of Applied Physics;9/15/2006, Vol. 100 Issue 6, p064911 

    The application of Zn compounds as buffer layers was recently extended to wide-gap CuInS2 (CIS) based thin-film solar cells. Using an alternative chemical deposition route for the buffer preparation aiming at the deposition of a single-layer, nominal ZnS buffer without the need for any toxic...

  • Optical, structural, and chemical properties of flash evaporated In2S3 buffer layer for Cu(In,Ga)Se2 solar cells. Verma, Rajneesh; Datta, Debjit; Chirila, Adrian; Güttler, Dominik; Perrenoud, Julian; Pianezzi, Fabian; Müller, Ulrich; Kumar, Satyendra; Tiwari, Ayodhya N. // Journal of Applied Physics;Oct2010, Vol. 108 Issue 7, p074904 

    In2S3 layers were deposited by flash evaporation technique with varying flash rates. The optical constants of layers based on Tauc-Lorentz model dielectric function were extracted from spectroscopic ellipsometry measurements. X-ray photoelectron spectroscopic investigation revealed the presence...

  • On the ultrathin gold film used as buffer layer at the transparent conductive anode/organic electron donor interface. Cattin, L.; Tougaard, S.; Stephant, N.; Morsli, S.; Bernède, J. // Gold Bulletin;2011, Vol. 44 Issue 4, p199 

    Previously, we have shown that a gold thin film of only 0.5 nm introduced at the interface between the indium tin oxide or ZnO anode and the organic electron donor in organic photovoltaic cells induces a strong improvement of the cell efficiency. Of course a thickness of 0.5 nm corresponds only...

  • Intergrain variations of the chemical and electronic surface structure of polycrystalline Cu(In,Ga)Se2 thin-film solar cell absorbers. Wilks, R. G.; Repins, I.; Contreras, M. A.; Félix, R.; Herrero-Albillos, J.; Tati-Bismaths, L.; Kronast, F.; Noufi, R.; Bär, M. // Applied Physics Letters;9/3/2012, Vol. 101 Issue 10, p103908 

    The μm-scale spatial distribution of the elements of polycrystalline Cu(In1-xGax)Se2 absorber surfaces is examined using x-ray photoelectron emission microscopy. The chemical composition varies from grain to grain, and a direct, linear anticorrelation between the In 3d and Ga 2p photoemission...

  • XPS Depth Profile Study of Sprayed CZTS Thin Films. Deepu, D. R.; Rajeshmon, V. G.; Kartha, C.Sudha; Vijayakumar, K. P. // AIP Conference Proceedings;2014, Vol. 1591, p1666 

    XPS depth profile studies were carried out to analyze the composition and stoichiometry of sprayed CZTS thin films giving an efficiency of 1.85% in CZTS based thin film solar cell. Surface layers were nearly stoichiometric (Cu:Zn:Sn:S=2:1:1:4) whereas the inner layers were found to be Copper...

  • The silicon/zinc oxide interface in amorphous silicon-based thin-film solar cells: Understanding an empirically optimized contact. Gerlach, D.; Wilks, R. G.; Wippler, D.; Wimmer, M.; Lozac'h, M.; Félix, R.; Mück, A.; Meier, M.; Ueda, S.; Yoshikawa, H.; Gorgoi, M.; Lips, K.; Rech, B.; Sumiya, M.; Hüpkes, J.; Kobayashi, K.; Bär, M. // Applied Physics Letters;7/8/2013, Vol. 103 Issue 2, p023903 

    The electronic structure of the interface between the boron-doped oxygenated amorphous silicon 'window layer' (a-SiOx:H(B)) and aluminum-doped zinc oxide (ZnO:Al) was investigated using hard x-ray photoelectron spectroscopy and compared to that of the boron-doped microcrystalline silicon...

  • Influence of intermediate layers on the surface condition of laser crystallized silicon thin films and solar cell performance. Höger, Ingmar; Himmerlich, Marcel; Gawlik, Annett; Brückner, Uwe; Krischok, Stefan; Andrä, Gudrun // Journal of Applied Physics;2016, Vol. 119 Issue 4, p1 

    The intermediate layer (IL) between glass substrate and silicon plays a significant role in the optimization of multicrystalline liquid phase crystallized silicon thin film solar cells on glass. This study deals with the influence of the IL on the surface condition and the required chemical...

  • Influence of intermediate layers on the surface condition of laser crystallized silicon thin films and solar cell performance. Hoger, Ingmar; Himmerlich, Marcel; Gawlik, Annett; Brückner, Uwe; Krischok, Stefan; Andrä, Gudrun // Journal of Applied Physics;1/28/2016, Vol. 119 Issue 4, p1 

    The intermediate layer (IL) between glass substrate and silicon plays a significant role in the optimization of multicrystalline liquid phase crystallized silicon thin film solar cells on glass. This study deals with the influence of the IL on the surface condition and the required chemical...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics