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Low temperature pulsed electron deposition and characterization of ZnS films for application in solar cells

Zanettini, S. ; Bissoli, F. ; Nasi, L. ; Ranzieri, P. ; Gilioli, E.

Crystal research and technology (1979), 2011-08, Vol.46 (8), p.881-884 [Periódico revisado por pares]

Berlin: WILEY-VCH Verlag

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  • Título:
    Low temperature pulsed electron deposition and characterization of ZnS films for application in solar cells
  • Autor: Zanettini, S. ; Bissoli, F. ; Nasi, L. ; Ranzieri, P. ; Gilioli, E.
  • Assuntos: pulsed electron deposition ; thin film ; ZnS
  • É parte de: Crystal research and technology (1979), 2011-08, Vol.46 (8), p.881-884
  • Notas: ArticleID:CRAT201000638
    istex:E3EF36C5DF7DD4B0BA3E2532F19F8121AA60BA46
    Italian Ministry of the Economical Development in the "Industria-2015" programme
    ark:/67375/WNG-GTP91BLV-B
  • Descrição: Zinc Sulphide films were grown by pulsed electron deposition (PED) from room temperature to 350 °C to investigate the possibility of its application in solar cells, in particular as an alternative buffer layer deposited at low temperature. The films were characterized by X‐ray diffraction, TEM, AFM, optical absorption and electrical measurements. ZnS films display crystalline structure and columnar growth at room temperature on amorphous substrate; the crystallization improves with the substrate temperature and is predominantly related to the cubic (111) orientation, while the thicker films show coexistence of hexagonal and cubic structures. All the samples have transparencies exceeding 70% in the range 400‐1000 nm, energy band gap between 3.25 and 3.65 eV increasing with temperature and resistivity in the range of 104‐106 Ωcm. The optimization of the growth rate as a function of the growth parameters (substrate temperature and electron gun voltage) is also discussed. The reported results indicate that ZnS might be a suitable material for photovoltaic applications, specifically in process requiring low deposition temperature. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
  • Editor: Berlin: WILEY-VCH Verlag
  • Idioma: Inglês
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