Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Development of World’s Highest Performance Thin Film Condenser

Abstract:
High-k Dielectric Nanosheets Realizes the Smallest, Highest Capacitance Device

Development of World’s Highest Performance Thin Film Condenser

Tokyo | Posted on August 30th, 2010

A research group headed by MANA Scientist Dr. Minoru Osada and Principal Investigator Dr. Takayoshi Sasaki of the International Center for Materials Nanoarchitectonics (MANA; Director-General: Masakazu Aono) at the National Institute for Materials Science (NIMS; President: Sukekatsu Ushioda) discovered a new high-k dielectric nanosheet with a molecular level thickness (~1.5 nm), and successfully developed the world's highest performance thin-film condenser by a solution-based bottom-up nanotechnology.

Condensers based on dielectric thin films are a key component of electronic devices, where they perform essential functions such as storing electrical charge, and blocking direct current while allowing alternating currents to propagate. Because condensers are the largest components in our electronic equipments such as cell phones, personal computers, etc., extensive efforts are directed at the developments of high performance condensers with smaller size and higher capacitance. Central to these researches is the design and integration of ultrathin high-k dielectrics such as perovskite-structure BaTiO3 and (Ba1-xSrx)TiO3, which should provide more capacitance per unit area of device. However, current perovskite thin films yield reduced dielectric constants that are one order of magnitudesmaller than bulk values. This so-called size effect is a long-standing conundrum in perovskite dielectrics, which limits further miniaturization and enhanced capacitance in condensers devices.

This research group conducted a search for new high-k nanodielectrics, and discovered a moleculary thin high-k nanosheet (perovsikte nanosheet) that afford robust high-k properties even at several nanometer thicknesses, allowing high capacitances. By solution-based bottom-up approach using perovskite nanosheets, the group successfully fabricated thin-film condensers directly on SrRuO3 or Pt substrates with a clean interface. These devices exhibited a high capacitance density (with dielectric constant of 210 - 240), the largest value seen so far in current perovskite films with the thickness down to 10 nm. This result enables further miniaturization and enhanced capacitance in thin film condensers, and opens a new route to the development of high performance condenser devices desirable for future electronic equipments.

This research was carried out as part of the research project "Development of Nanomaterials/Manufacturing Processes for Next-generation Electronics Using Inorganic Nanosheets" (Project Leader: Takayoshi Sasaki) in the "Establishment of Innovative Manufacturing Technology Based on Nanotechnology" Research Area ofthe Core Research of Evolutional Science & Technology (CREST) Program of the Japan Science and Technology Agency (JST). This result was published in the online edition of ACS Nano (the American Chemical Society) on August 24 (local time).


####

For more information, please click here

Contacts:
NIMS Public Relations Office
TEL:+81-29-859-2026
FAX:+81-29-859-2017

Copyright © National Institute for Materials Science

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Doubling down on Schrödinger's cat May 27th, 2016

Deep Space Industries and SFL selected to provide satellites for HawkEye 360’s Pathfinder mission: The privately-funded space-based global wireless signal monitoring system will be developed by Deep Space Industries and UTIAS Space Flight Laboratory May 26th, 2016

Thin films

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

Graphene: A quantum of current - When current comes in discrete packages: Viennese scientists unravel the quantum properties of the carbon material graphene May 20th, 2016

New research shows how silver could be the key to gold-standard flexible gadgets: Silver nanowires are an ideal material for current and future flexible touch-screen technologies May 13th, 2016

Solliance realizes first up-scaled Perovskite based PV modules with 10% efficiency: Holst Centre, imec and ECN pave the road to upscaling Perovskite PV modules May 10th, 2016

Nanoelectronics

Researchers demonstrate size quantization of Dirac fermions in graphene: Characterization of high-quality material reveals important details relevant to next generation nanoelectronic devices May 20th, 2016

Graphene: A quantum of current - When current comes in discrete packages: Viennese scientists unravel the quantum properties of the carbon material graphene May 20th, 2016

New type of graphene-based transistor will increase the clock speed of processors: Scientists have developed a new type of graphene-based transistor and using modeling they have demonstrated that it has ultralow power consumption compared with other similar transistor devices May 19th, 2016

Self-healing, flexible electronic material restores functions after many breaks May 17th, 2016

Announcements

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Doubling down on Schrödinger's cat May 27th, 2016

Deep Space Industries and SFL selected to provide satellites for HawkEye 360’s Pathfinder mission: The privately-funded space-based global wireless signal monitoring system will be developed by Deep Space Industries and UTIAS Space Flight Laboratory May 26th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic