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Research Article Open access CC BY 3.0

Deposition of Conducting Oxide Thin Films as Anode for Solar Cell Device

N. Mustapha, A. Hennache, Z. Fekkai

Current Journal of Applied Science and Technology · pp. 739–748 · Published 5 Dec 2013

10.9734/BJAST/2014/6812

Abstract

Transparent Conducting Indium Tin Oxide (ITO) and Zinc Oxide (ZnO) thin films were deposited with Pulsed Laser Deposition PLD at 300°C. The ITO films have small grain size of 5-10 nm and a high value transmission (95%) in the wavelength range from 300 to 700 nm with a low resistivity of 2.25 × 10−4 Ω.cm. While Zinc Oxide (ZnO) films have grain size of 15 nm and a transmission of 85% with a resistivity of 2.10 × 10−2 Ω.cm. A lower resistivity and better spectra selectivity is a measurement of the quality and potential use of transparent ITO and ZnO films for the application as anode electrodes for optoelectronic devices. The optimized ITO film was then used individually as anode in a solar cell based on organic conjugated polymer BEH-co-MEH-PPV. The cell fabricated in this study with an active layer made by solution-processed polymer. It was also found that the surface roughness and work function of oxide films are very important to enhance the stability and efficiency of electrode thin films used for solar cells. The solar cell structure ITO/BEHP-co-MEH-PPV/Al has shown a photovoltaic performance with open circuit voltages (Voc) of the cell being 0.45 V and power conversion efficiency of 6.4% and a fill factor of 40%.  

Thin films nano-structured films physical interfaces optical coatings solar cell efficiency

References (8)

  1. 1 Indium tin oxide thin films for organic light-emitting devices [DOI]
  2. 2 Effect of film thickness on the properties of indium tin oxide thin films [DOI]
  3. 3 Surface characterization and microstructure of ITO thin films at different annealing temperatures [DOI]
  4. 4 Indium Tin Oxide thin film gas sensors for detection of ethanol vapours [DOI]
  5. 5 Optimised pulsed laser deposition of ZnO thin films on transparent conducting substrates [DOI]
  6. 6 Polycrystalline intrinsic zinc oxide to be used in transparent electronic devices [DOI]
  7. 7 Structural, electrical and optical properties of indium–tin–oxide thin films prepared by pulsed laser deposition [DOI]
  8. 8 Improved efficiency of solar cells based on BEHP-co-MEH-PPV doped with ZnO nanoparticles [DOI]

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