Cu2ZnSnS4 thin film solar cells from electroplated precursors: Novel low-cost perspective

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Details zur Publikation

Autor(en): Ennaoui APD, Lux-Steiner M, Weber A, Abou-Ras D, Koetschau I, Schock HW, Schurr R, Hölzing A, Jost SG, Hock R, Voss T, Schulze J, Kirbs A
Verlag: ELSEVIER SCIENCE SA
Jahr der Veröffentlichung: 2009
Band: 517
Heftnummer: 7
Seitenbereich: 2511-2514
ISSN: 0040-6090


Abstract


Thin-film solar cells based on Cu2ZnSnS4 (CZTS) absorbers were fabricated successfully by solid-state reaction in H2S atmosphere of electrodeposited Cu-Zn-Sn precursors. These ternary alloys were deposited in one step from a cyanide-free alkaline electrolyte containing Cu(II), Zn(II) and Sn(IV) metal salts on Mo-coated glass substrates. The solar cell was completed by a chemical bath-deposited US buffer layer and a sputtered i-ZnO/ZnO:Al bilayer. The best solar cell performance was obtained with Cu-poor samples. A total area (0.5 cm(2)) efficiency of 3.4% is achieved (V-oc=563 mV, j(sc)=14.8 mA/cm(2), FF=41%) with a maximum external quantum efficiency (EQE) of 80%. The estimated band-gap energy from the external quantum efficiency (EQE) measurements is about 1.54 eV. Electron backscatter-diffraction maps of cross-section samples revealed CZTS grain sizes of up to 10 mu m. Elemental distribution maps of the CZTS absorber show Zn-rich precipitates, probably ZnS, and a Zn-poor region, presumably Cu2SnS3, close to the interface Mo/CZTS. (C) 2008 Elsevier B.V. All rights reserved.



FAU-Autoren / FAU-Herausgeber

Hock, Rainer Prof. Dr.
Professur für Kristallographie und Strukturphysik
Hölzing, Astrid
Professur für Kristallographie und Strukturphysik


Autor(en) der externen Einrichtung(en)
Atotech Deutschland GmbH
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)


Zitierweisen

APA:
Ennaoui, A.P.D., Lux-Steiner, M., Weber, A., Abou-Ras, D., Koetschau, I., Schock, H.-W.,... Kirbs, A. (2009). Cu2ZnSnS4 thin film solar cells from electroplated precursors: Novel low-cost perspective. (pp. 2511-2514). ELSEVIER SCIENCE SA.

MLA:
Ennaoui, Ahmed, Prof. Dr., et al. "Cu2ZnSnS4 thin film solar cells from electroplated precursors: Novel low-cost perspective." ELSEVIER SCIENCE SA, 2009. 2511-2514.

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Zuletzt aktualisiert 2018-10-08 um 15:53