Featured Research

from universities, journals, and other organizations

Growing thin films of germanium

Date:
September 6, 2013
Source:
American Institute of Physics (AIP)
Summary:
Researchers have developed a new technique to produce thin films of germanium crystals -- key components for next-generation electronic devices such as advanced large-scale integrated circuits and flexible electronics, which are required for gadgets that move or bend.

High-speed germanium thin-film transistors enable next-generation electronics.
Credit: Kyushu Univ./T. Sadoh

Researchers have developed a new technique to produce thin films of germanium crystals -- key components for next-generation electronic devices such as advanced large-scale integrated circuits and flexible electronics, which are required for gadgets that move or bend.

Unlike conventional methods, the new approach does not require high temperatures or other crystals to act as seeds to grow the germanium crystal. And, the researchers say, the new method can be used to produce germanium films with a very large area, allowing for more potential applications.

"This is the realization of the dreams of crystal-growth researchers," says Taizoh Sadoh of Kyushu University. "This unique method will open new ways to create advanced flexible electronics."

Sadoh is an author of the paper describing the new work, which appears in the AIP Publishing journal Applied Physics Letters.

Charged particles move through germanium more readily than they do through silicon, making germanium a good material for electronics. In particular, it is a promising material for the thin-film transistors that are needed for flexible electronics. However, for use in flexible electronics, the germanium would have to be grown on malleable materials, which tend to soften at temperatures above 300° Celsius. The challenge, said Sadoh, is to grow germanium at lower temperatures.

Using gold as a catalyst, Sadoh and his colleagues were able to grow germanium crystals at a temperature of about 250° Celsius. They were also able to grow them in such a way that their crystal structure has the proper orientation and electrical properties necessary for technological applications.


Story Source:

The above story is based on materials provided by American Institute of Physics (AIP). Note: Materials may be edited for content and length.


Journal Reference:

  1. Jong-Hyeok Park, Tsuneharu Suzuki, Masashi Kurosawa, Masanobu Miyao, Taizoh Sadoh. Nucleation-controlled gold-induced-crystallization for selective formation of Ge(100) and (111) on insulator at low-temperature (∼250 °C). Applied Physics Letters, 2013; 103 (8): 082102 DOI: 10.1063/1.4819015

Cite This Page:

American Institute of Physics (AIP). "Growing thin films of germanium." ScienceDaily. ScienceDaily, 6 September 2013. <www.sciencedaily.com/releases/2013/09/130906114208.htm>.
American Institute of Physics (AIP). (2013, September 6). Growing thin films of germanium. ScienceDaily. Retrieved September 15, 2014 from www.sciencedaily.com/releases/2013/09/130906114208.htm
American Institute of Physics (AIP). "Growing thin films of germanium." ScienceDaily. www.sciencedaily.com/releases/2013/09/130906114208.htm (accessed September 15, 2014).

Share This



More Matter & Energy News

Monday, September 15, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Manufacturer Prints 3-D Car In Record Time

Manufacturer Prints 3-D Car In Record Time

Newsy (Sep. 15, 2014) — Automobile manufacturer Local Motors created a drivable electric car using a 3-D printer. Printing the body only took 44 hours. Video provided by Newsy
Powered by NewsLook.com
Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Reuters - US Online Video (Sep. 15, 2014) — New York officials unveil subway tunnels that were refurbished after Superstorm Sandy. Nathan Frandino reports. Video provided by Reuters
Powered by NewsLook.com
Frustration As Drone Industry Outpaces Regulation In U.S.

Frustration As Drone Industry Outpaces Regulation In U.S.

Newsy (Sep. 14, 2014) — U.S. firms worry they’re falling behind in the marketplace as the FAA considers how to regulate commercial drones. Video provided by Newsy
Powered by NewsLook.com
Smart Gun Innovators Fear Backlash From Gun Rights Advocates

Smart Gun Innovators Fear Backlash From Gun Rights Advocates

Newsy (Sep. 14, 2014) — Winners of a contest for smart gun design are asking not to be named after others in the industry received threats for marketing similar products. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins