Fabrication of nano-engineered transparent conducting oxides by pulsed laser deposition.

نویسندگان

  • Paolo Gondoni
  • Matteo Ghidelli
  • Fabio Di Fonzo
  • Andrea Li Bassi
  • Carlo S Casari
چکیده

Nanosecond Pulsed Laser Deposition (PLD) in the presence of a background gas allows the deposition of metal oxides with tunable morphology, structure, density and stoichiometry by a proper control of the plasma plume expansion dynamics. Such versatility can be exploited to produce nanostructured films from compact and dense to nanoporous characterized by a hierarchical assembly of nano-sized clusters. In particular we describe the detailed methodology to fabricate two types of Al-doped ZnO (AZO) films as transparent electrodes in photovoltaic devices: 1) at low O₂ pressure, compact films with electrical conductivity and optical transparency close to the state of the art transparent conducting oxides (TCO) can be deposited at room temperature, to be compatible with thermally sensitive materials such as polymers used in organic photovoltaics (OPVs); 2) highly light scattering hierarchical structures resembling a forest of nano-trees are produced at higher pressures. Such structures show high Haze factor (>80%) and may be exploited to enhance the light trapping capability. The method here described for AZO films can be applied to other metal oxides relevant for technological applications such as TiO₂, Al₂O₃, WO₃ and Ag₄O₄.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Composition-dependent structural and transport properties of amorphous transparent conducting oxides

Structural properties of amorphous In-based oxides, In-X-O with X = Zn, Ga, Sn, or Ge, are investigated using ab initio molecular dynamics liquid-quench simulations. The results reveal that indium retains its average coordination of 5.0 upon 20%X fractional substitution for In, whereasX cations satisfy their natural coordination with oxygen atoms. This finding suggests that the carrier generati...

متن کامل

High proton conduction in grain-boundary-free yttrium-doped barium zirconate films grown by pulsed laser deposition.

Reducing the operating temperature in the 500-750 °C range is needed for widespread use of solid oxide fuel cells (SOFCs). Proton-conducting oxides are gaining wide interest as electrolyte materials for this aim. We report the fabrication of BaZr(0.8)Y(0.2)O(3-δ) (BZY) proton-conducting electrolyte thin films by pulsed laser deposition on different single-crystalline substrates. Highly textured...

متن کامل

Pulsed-laser deposition of heteroepitaxial corundum-type ZITO: cor-In2−2xZnxSnxO3

a r t i c l e i n f o Keywords: Transparent conducting oxide Pulsed-laser deposition Epitaxial Zinc indium tin oxide Lattice matched Corundum Thin films of corundum-type In 2 − 2x Zn x Sn x O 3 (cor-ZITO) were grown on lattice-matched substrates using pulsed laser deposition. The (001) of the corundum-type film grew heteroepitaxial to the (001) of a LiNbO 3 substrate with large grains along the...

متن کامل

Thermal stability of amorphous Zn-In-Sn-O films

Isochronal annealing of amorphous Zn and Sn codoped In2O3 (a-ZITO) films was performed at the Synchrotron so that to extract, in situ, important kinetic nucleation and growth parameters from a single constant-rate heating experiment. First, amorphous Zn and Sn codoped In2O3 films were deposited via pulsed laser deposition and subjected to postdeposition annealing treatments to study their stabi...

متن کامل

Complex functional oxide heterostructures

This article presents a review of some salient aspects of a broad class of functional materials, namely complex oxides. These materials, exemplified by the rare earth manganites, superconducting cuprates and more recently multiferroics, are characterized by a complex crystal chemistry, that is central to competing/ cooperating spin, charge, orbital and lattice degrees of freedom. In addition to...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Journal of visualized experiments : JoVE

دوره 72  شماره 

صفحات  -

تاریخ انتشار 2013