Research Themes +
Energy Technologies Area (ETA) researchers are continually building on the strong scientific foundation we have developed over the past 50 years. We address the world’s most pressing climate challenges by bringing to market energy-efficient innovations across the buildings, transportation, and industrial sectors. ETA is at the forefront of developing better batteries for electric vehicles; improving the country's aging electrical grid and innovating distributed energy and storage solutions; developing grid-interactive, efficient buildings; and providing the most comprehensive market and data analysis worldwide for renewable technologies like wind and solar.
Strategic Initiatives +
The Energy Technologies Area (ETA) Strategic Plan is the guiding force for our research and development for the next ten years. It clearly charts a path toward clean-energy solutions and focuses on five detailed Strategic Initiatives. The Plan provides an in-depth look at how ETA is accelerating research to provide affordable, clean energy to all while accomplishing deep, economy-wide decarbonization, looking to avoid a rise in global average temperature while simultaneously developing solutions to increase humanity's resilience to extreme weather volatility.
Publications
News +
For media inquiries,
please contact ETA
Interim Communications Manager
Kiran Julin

kjulin@lbl.gov
About Us +
The Energy Technologies Area (ETA) is unique in translating fundamental scientific discoveries into scalable technology adoption. Our approach combines an understanding of the marketplace and the role of state and federal regulation and policies. ETA's research drives real-world, practical results that affect and improve the everyday lives of Americans and those across the globe. Saving energy and battling the Climate Crisis are key to the foundation of our research, which is driven by technoeconomic analysis and in-lab experimentation and discovery.

Epitaxial Y1Ba2Cu3O7-y/Y 1-xPrxBa2Cu3O7-y heterostructures

Publication Type

Journal Article

Authors

Venkatesan, T., A. Inam, B. Dutta, Ramamoorthy Ramesh, M.S. Hegde, X.D. Wu, L. Nazar, C.C. Chang, J.B. Barner, D.M. Hwang, C.T. Rogers

DOI

10.1063/1.103291

Abstract

For a variety of device applications, junction devices in particular, we have demonstrated a heterostructure system of Y1Ba2Cu 3O7-y/Y1-xPrxBa2Cu 3O7-y which maintains epitaxy over the entire Pr composition range x=0-1. We have grown both trilayer and multiperiod superlattices which show nearly single crystalline helium ion backscattering minimum yields of <6% in the topmost layer. X-ray diffraction measurements indicate c-axis orientation by a transverse scan across (005) line with a full width at half maximum of 0.6°and 0.4°on MgO and SrTiO3 substrates, respectively. Scanning Auger electron depth profiles and cross-sectional transmission electron micrographs indicate abrupt Pr/Y interfaces within one unit cell and virtually no disruption of the layered structure at the interface. These results indicate the potential for the growth of excellent heterostructures and superlattices of the high-temperature superconductors.

Journal

Applied Physics Letters

Volume

Year of Publication

1990

ISSN

00036951

Notes

cited By 57

Research Areas

Ramesh Lab