-
- Home
- Journals
- Bulletin of Materials Science
-
Y P Yadava
Articles written in Bulletin of Materials Science
-
-
Volume 17 Issue 6 November 1994 pp 577-584
YBa2SnO5·5, a novel ceramic substrate for YBCO and BiSCCO superconductors
J Koshy K S Kumar J Kurian Y P Yadava A D Damodaran
YBa2SnO5·5 has been synthesized and sintered as single phase material for its use as substrate for both YBCO and BiSCCO superconductors. YBa2SnO5·5 has a complex cubic perovskite (A2BB’O6) structure with the lattice constant
a = 8·430 Å. The dielectric constant and loss factor of YBa2SnO5·5 are in a range suitable for its use as substrate for microwave applications. YBa2SnO5·5 is found to be chemically compatible with both YBCO and BiSCCO superconductors. The thick film of YBCO screen printed on polycrystalline YBa2SnO5·5 substrate gave aT c (0) of 92 K and a critical current density (J c) of 4 × 104 A/cm2 at 77 K. A screen printed BiSCCO thick film on YBa2SnO5·5 substrate gaveT c (0) = 110 K and current density 3 × 103 A/cm2 at 77 K. -
Volume 19 Issue 2 April 1996 pp 423-427
I A Hümmelgen Y P Yadava L S Roman A C Arias M R Fernandes F C Nart
We have fabricated light emitting diodes (LED) with poly (
p -phenylene vinylene) (PPV) as the emissive layer and tin oxide (TO) as the transparent conducting positive electrode and aluminium as the negative electrode. The fabrication conditions are optimized for visible light emission in these TO/PPV/Al LEDs. The threshold voltage for substantial charge injection for visible light emission in these LEDs lies below 10V. The device fabrication and electrical characterization of TO/PPV/Al LEDs are discussed in this communication.
-
-
Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
-
Bulletin of Materials Science | News
-
Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-