Scientists Show How Defects Can Improve Technology In Science Magazine's Special Issue On Materials Science

WASHINGTON, D.C. -- Although it may defy common sense, adding imperfections to materials can actually improve their performance in devices used for everything from information technology to playing music. In this special section, four articles and a special news section show how purposely creating "defects"--or putting naturally occurring defects to good use--can have major implications for the future of electronics and materials science.

The use of semiconductor devices, which allow the manipulation of electric current, has revolutionized information and communications technology. These devices are actually created by introducing impurities into specific regions of a semiconducting material, allowing researchers to control the current in a number of ways, including amplifying it or changing its direction. New applications for defects in semiconductors are being rapidly developed, but scientists do not yet have a thorough understanding of how some defects operate. While semiconductors are best known for their use in computer chips, defects also appear to be useful for improving high-speed communications technology through the engineering of a certain variety of optical fibers.

In one article, Hans J. Queisser and Eugene E. Haller review several of the major ways in which defects affect the performance of semiconductors. In some cases researchers grow pure semiconductor crystals and then "dope" them with foreign atoms. Alternatively, some defects occur naturally within a semiconductor crystal, and researchers must use their ingenuity to find ways of controlling, or even exploiting, these defects.

H. Ohno discusses advances made in merging the capabilities of non-magnetic semiconductors, like silicon, with those of magnetic materials (used to store massive amounts of information; for example, on hard disks). The results could be used to engineer instruments that could perform mass storage and process information at

Contact: Kathy Wren
(202) 326-6215
American Association for the Advancement of Science

Page: 1 2 3 4

Related biology news :

1. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
2. Scientists sequence genome of kind of organism central to biospheres carbon cycle
3. Scientists find nanowires capable of detecting individual viruses
4. Scientists discover potential new way to control drug-resistant bacteria
5. Scientists explore genome of methane-breathing microbe
6. Scientists decipher genetic code of biothreat pathogen
7. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
8. Scientists discover proteins involved in spread of HIV-1 infection
9. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
10. Scientists reinvent DNA as template to produce organic molecules
11. Scientists visualise cellular handmaiden that restores shape to proteins

Post Your Comments:

(Date:8/26/2020)... ... August 25, 2020 , ... Catalent, the leading ... cell and gene therapies, and consumer health products, today announced that two Catalent ... & Expo, taking place between Aug. 31 – September 4, 2020. , On ...
(Date:8/21/2020)... CARLSBAD, Calif. (PRWEB) , ... August 19, 2020 ... ... of both Salimetrics LLC and SalivaBio LLC, businesses dedicated to Salivary Bioscience for ... co-editor of the recently published book by Springer, " Salivary Bioscience: Foundations of ...
(Date:8/12/2020)... , ... August 12, 2020 , ... ... monitoring systems that are ideal for public health agencies of all sizes. With ... diseases and helping at-risk individuals find appropriate health care, Mosio helps public health ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... ... eSource has long been touted as the solution to high data management ... reasons it did not take off as quickly as people initially expected, and where ... towards capturing data electronically for clinical trials and then repurposing it for downstream analysis, ...
(Date:7/18/2020)... , ... July 16, 2020 , ... “We are thrilled ... Wave Bioactives. “It’s the only technology of its kind on the market and we ... onions with the protective capacity of traditional cultured ingredients, creating a natural way to ...
(Date:7/10/2020)... , ... July 09, 2020 , ... ... 1-phenyl-2-thiourea (PTU) is commonly used to suppress pigment formation in zebrafish embryos, maintaining ... research team led by Dr MA has been using the zebrafish model to ...
(Date:7/1/2020)... ... June 29, 2020 , ... The Interlocal Purchasing System (TIPS), ... membership, recently named BioFit Engineered Products an Awarded Vendor. Awarded Vendor ... seating, cafeteria tables, book trucks and carts at discounted pricing without the delay ...
Breaking Biology Technology:
Cached News: