TY - JOUR
KW - Deposition
KW - Pulsed laser deposition
KW - Optical properties
KW - Perovskite
KW - Oxygen
KW - Epitaxial growth
KW - Epitaxial thin films
KW - Lanthanum
KW - Strontium titanates
KW - Strontium
KW - Oxide heterostructures
KW - Oxygen vacancies
KW - Doping (additives)
KW - Strontium titanate
KW - Electric resistance
KW - Perovskite oxides
KW - High transparency
KW - SrTiO
KW - Conductive films
KW - Epitaxial films
KW - Critical growth
KW - Intrinsic optical properties
KW - La doping
KW - Opto-electronics
KW - Pulsed laser deposition technique
KW - UV visible spectroscopy
KW - UV-visible
KW - Optoelectronic devices
KW - Ultraviolet spectroscopy
AU - J Ravichandran
AU - W Siemons
AU - H Heijmerikx
AU - M Huijben
AU - A Majumdar
AU - Ramamoorthy Ramesh
AB - Epitaxial thin films of strontium titanate doped with different concentrations of lanthanum and oxygen vacancies were grown on LSAT substrates by pulsed laser deposition technique. Films grownwith 5-15%La doping and a critical growth pressure of 1-10mTorr showed high transparency (>70-95%) in the UV-visible range with a sheet resistance of 300-1000 Ω/0. With the aid of UV-visible spectroscopy and photoluminescence, we establish the presence of oxygen vacancies and the possible band structure, which is crucial for the transparent conducting nature of these films. This demonstration will enable development of various epitaxial oxide heterostructures for both realizing opto-electronic devices and understanding their intrinsic optical properties. © 2010 American Chemical Society.
BT - Chemistry of Materials
DO - 10.1021/cm1005604
LA - eng
M1 - 13
N1 - cited By 34
N2 - Epitaxial thin films of strontium titanate doped with different concentrations of lanthanum and oxygen vacancies were grown on LSAT substrates by pulsed laser deposition technique. Films grownwith 5-15%La doping and a critical growth pressure of 1-10mTorr showed high transparency (>70-95%) in the UV-visible range with a sheet resistance of 300-1000 Ω/0. With the aid of UV-visible spectroscopy and photoluminescence, we establish the presence of oxygen vacancies and the possible band structure, which is crucial for the transparent conducting nature of these films. This demonstration will enable development of various epitaxial oxide heterostructures for both realizing opto-electronic devices and understanding their intrinsic optical properties. © 2010 American Chemical Society.
PY - 2010
SP - 3983
EP - 3987
T2 - Chemistry of Materials
TI - An epitaxial transparent conducting perovskite oxide: Double-doped SrTiO3
VL - 22
SN - 08974756
ER -