Sol-gel processing of buffer layers on Ni tape for YBCO surface coated conductors

2000 ◽  
Vol 10 (1) ◽  
pp. 1162-1165 ◽  
Author(s):  
E. Celik ◽  
I.H. Mutlu ◽  
Y.S. Hascicek
Keyword(s):  
Sol Gel ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Gel Processing

Textured buffer layers for YBCO coated conductors by continuous sol-gel processing

2001 ◽  
Vol 11 (1) ◽  
pp. 2889-2892 ◽  
Author(s):  
H. Okuyucu ◽  
E. Celik ◽  
M.K. Ramazanoglu ◽  
Y. Akin ◽  
I.H. Mutlu ◽  
...  
Keyword(s):  
Sol Gel ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Gel Processing ◽  
Ybco Coated Conductors

Chemical Solution Deposition of Lanthanum Zirconate Buffer Layers on Biaxially Textured Ni–1.7% Fe–3% W Alloy Substrates for Coated-conductor Fabrication

2002 ◽  
Vol 17 (6) ◽  
pp. 1543-1549 ◽  
Author(s):  
S. Sathyamurthy ◽  
M. Paranthaman ◽  
T. Aytug ◽  
B. W. Kang ◽  
P. M. Martin ◽  
...  
Keyword(s):  
Sol Gel ◽  
Rf Sputtering ◽  
Cube Texture ◽  
Dip Coating ◽  
Buffer Layers ◽  
Lanthanum Zirconate ◽  
Solution Deposition ◽  
Ybco Films ◽  
Current Densities ◽  
Gel Processing

Sol-gel processing of La2Zr2O7 (LZO) buffer layers on biaxially textured Ni–1.7% Fe–3% W alloy substrates using a continuous reel-to-reel dip-coating unit has been studied. The epitaxial LZO films obtained have a strong cube texture and uniform microstructure. The effects of increasing the annealing speed on the texture, microstructure, and carbon content retained in the film were studied. On top of the LZO films, epitaxial layers of yttria-stabilized zirconia and Ceria (CeO2) were deposited using rf sputtering, and YBa2Cu3Ox (YBCO) films were then deposited using pulsed laser deposition. Critical current densities (Jc) of 1.9 MA/cm2 at 77 K and self-field and 0.34 MA/cm2at 77 K and 0.5 T have been obtained on these films. These values are comparable to those obtained on YBCO films deposited on all-vacuum deposited buffer layers and the highest ever obtained using solution seed layers.

The effects of Ta2O5–ZnO films as cathodic buffer layers in inverted polymer solar cells

2014 ◽  
Vol 2 (24) ◽  
pp. 9361-9370 ◽  
Author(s):  
Jo-Lin Lan ◽  
Sheng-Jye Cherng ◽  
Yi-Hsun Yang ◽  
Qifeng Zhang ◽  
Selvam Subramaniyan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Sol Gel ◽  
Composite Films ◽  
Buffer Layers ◽  
Zno Films ◽  
Varied Composition ◽  
Gel Processing ◽  
Inverted Polymer Solar Cells ◽  
Excellent Stability

Ta2O5–ZnO composite films with varied composition were fabricated by sol–gel processing and applied as cathodic buffer layers (CBLs) for inverted polymer solar cells, and demonstrated enhanced power conversion efficiency with excellent stability.

Sol–gel deposition of high-performance Re0.2Ce0.8O2/La2Zr2O7 composite buffer layers on Ni–W tapes for YBCO coated conductors

2015 ◽  
Vol 77 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Weibai Bian ◽  
Yuanqing Chen ◽  
Xinni Tang ◽  
Weihua Zhang ◽  
Gaoyang Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Sol Gel ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Ybco Coated Conductors

Fabrication of High Jc YBa2Cu3O7-δ Coated Conductors Using Sol-Gel Buffer Layers On Nickel and Nickel Alloy Substrates

2001 ◽  
Vol 689 ◽  
Author(s):  
S. Sathyamurthy ◽  
M. Paranthaman ◽  
B. W. Kang ◽  
H. Y. Zhai ◽  
T. Aytug ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Sol Gel ◽  
Rf Sputtering ◽  
Cube Texture ◽  
Dip Coating ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Ybco Films

Sol-gel processing of La2Zr2O7 (LZO) buffer layers on biaxially textured Ni-3 at.% W alloy substrates using a continuous reel-to-reel dip-coating unit has been studied. The epitaxial LZO films obtained have a strong cube texture and uniform microstructure. The effect of increasing the annealing speed on the texture, microstructure and the carbon content retained in the film were studied. On top of the LZO films, epitaxial layers of Yttria Stabilized Zirconia (YSZ) and Ceria (CeO2) were deposited using rf sputtering, and YBa2Cu3Ox (YBCO) films were then deposited using Pulsed Laser Deposition (PLD). A critical current density (Jc) of 1.9 MA/cm2 at 77K and self-field and 0.34 MA/cm2 at 77K and 0.5T have been obtained on these films. These values are comparable to those obtained on YBCO films deposited on all-vacuum deposited buffer layers, and are the highest ever obtained using solution seed layers. The use of all-solution buffers for coated conductor processing has also been explored. A critical current density of 1.1 MA/cm2 at 77 K and self-field was obtained on YBCO films grown be PLD on LZO buffered nickel substrates.

Lanthanum zirconate: A single buffer layer processed by solution deposition for coated conductor fabrication

2002 ◽  
Vol 17 (9) ◽  
pp. 2181-2184 ◽  
Author(s):  
S. Sathyamurthy ◽  
M. Paranthaman ◽  
H-Y. Zhai ◽  
H. M. Christen ◽  
P. P. Martin ◽  
...  
Keyword(s):  
Buffer Layer ◽  
Low Cost ◽  
Sol Gel ◽  
Single Layer ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Solution Deposition ◽  
Sol Gel Process ◽  
Current Densities ◽  
First Time

A single layer of La2Zr2O7 (LZO), deposited on textured Ni and Ni–1.7% Fe–3% W (Ni–W) tapes by a low-cost sol-gel process, is used as buffer layer for the growth of YBa2Cu3O7−δ (YBCO) coated conductors. It is shown for the first time that such single buffer layers can be used for the deposition of YBCO yielding critical current densities (Jc) that are comparable to those typically obtained using CeO2/YSZ/Y2O2 trilayers on identical substrates, i.e., in excess of 1 MA/cm2 at 77 K and self-field. The properties of the YBCO films and the dependence of Jc on thickness of the LZO layer are investigated.

Sol-Gel Ink-Jet Printing Technique for Synthesis of Buffer Layers of Coated Conductors

2006 ◽  
Vol 47 ◽  
pp. 153-158 ◽  
Author(s):  
V. Cloet ◽  
M.C. Cordero-Cabrera ◽  
T. Mouganie ◽  
Bartek A. Glowacki ◽  
M. Falter ◽  
...  
Keyword(s):  
Sol Gel ◽  
Coated Conductors ◽  
Buffer Layers ◽  
High Temperature Heat Treatment ◽  
Pole Figures ◽  
Ink Jet ◽  
Jet Printing ◽  
Computer Controlled ◽  
Cerium Acetylacetonate ◽  
Temperature Heat Treatment

In this present work, two buffer layers (La2Zr2O7 and CeO2) were deposited by a non-contact computer-controlled ink-jet coating technique with sol-gel precursors on highly textured Ni-5%W Rolling Assisted Biaxially Textured substrates (RABiTS). Lanthanum acetate and cerium acetylacetonate were used as precursors for the LZO and CeO2 sol respectively. After a high temperature heat treatment (heating at 900°C for LZO and at 1100°C for CeO2) under reducing atmosphere, epitaxial textured buffer layers were obtained. XRD and pole figures were used to analyse the texture of the films, the microstructure was analysed by SEM.

scholarly journals Epitaxial Growth of Yb2O3 Buffer Layers on Biaxially Textured-Ni (100) Substrates by Sol-Gel Process

1999 ◽  
Vol 574 ◽  
Author(s):  
T. G. Chirayil ◽  
M. Paranthaman ◽  
D. B. Beach ◽  
J. S. Morrelli ◽  
E. Y. Sun ◽  
...  
Keyword(s):  
Sol Gel ◽  
Precursor Solution ◽  
Amorphous Film ◽  
Dip Coating ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Axis Orientation ◽  
Sol Gel Process ◽  
Out Of Plane ◽  
Coating Methods

AbstractIn order to develop an alternative buffer layer architecture using the sol-gel process to produce YBCO (YBa2Cu3O7-δ) coated conductors, Yb2O3 has been chosen as the candidate material. Buffer layers of Yb2O3 were epitaxially grown on biaxially textured-Ni (100) substrates by the sol gel process for the first time. The Yb2O3 precursor solution was prepared from an alkoxide sol-gel route in 2-methoxyethanol and was deposited on textured-Ni (100) substrates by either spin coating or dip coating methods. The amorphous film was then processed at 1160°C under flowing (96%)Ar/H2(4%) gas mixture for one hour. The Yb2O3 film exhibited a strong c-axis orientation on the Ni (100) substrates. The phi and omega scans indicated good in plane and out of plane orientations. The X-ray (222) pole figure showed a cube-on-cube epitaxy. High current YBCO films were grown on the Yb2O3 sol-gel buffered-Ni substrates.

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