Skip to main content
    • Aa
    • Aa

Inorganic Photo-sensitized Transparent Conductive Oxide (TCO) Nanocomposite Thin Films for Photovoltaic (PV) Energy Conversion

  • Cary G. Allen (a1), Grace H. Shih (a2) and B.G. Potter (a3)

Nanophase semiconductor composites are widely researched for the development of third-generation photovoltaic (PV) devices. Through quantum-size effects and phase assembly manipulation the optical absorption and carrier transport properties of nanocomposite films can be influenced. We investigate the potential for improved PV-relevant material performance by examining the photo-sensitization of indium-tin-oxide (ITO) with nanophase germanium (Ge). Nanocomposite films are produced by a sequential, RF-magnetron sputter deposition technique. Deposition control and post-deposition annealing are used to demonstrate the manipulation of the extended-assembly of the nanocrystalline Ge phase. Optical absorption characteristics were correlated to variations in the composite film structure as confirmed by transmission electron microscopy. In addition to structure-dependent variation in spectral absorption, spectrally resolved photoconductivity measurements demonstrate enhanced photoconductivity of composite films associated with the incorporation of the Ge phase into the ITO host. These results support the further evaluation of such nanocomposite TCO materials in optoelectronic devices, including PV systems.

Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

2L. E. Brus , J. Chem. Phys. 79, 5566 (1983).

4R. D. Schaller and V. I. Klimov , Phys. Rev. Lett Lett. 92, 186601 (2004).

5M.A. Green , Nanotechnology 11, 401 (2000).

8Y. Maeda , et al., Appl. Phys. Lett. 59, 3168 (1991)

9T. J. Bukowski , et al., J. Noncrystal. Solids 274, 87 (2000).

10S. Chatterjee , A. Goyal , and S. Shah , Mater. Lett. 60, 3541 (2006).

11C. W. Teng , et al., Appl. Phys. Lett. 76, 43 (2000).

13D. Song , et al., Sol. Energy Mater. & Sol. Cells 92, 474 (2008).

15J. Sládková , Czech. J. Phys., 27, 943 (1976).

16C. Yan , T. Zhang , P.S. Lee , Cryst. Growth Des. 8 3144 (2008).

17S. Chatterjee , Solar Energy, 82, 95 (2008).

19J.Z. Li , et al., Appl. Phys Lett. 69, 1474 (1996).

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *