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 April 19, 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 April 19, 2014).

Share This



More Matter & Energy News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Horseless Carriage Introduced at NY Auto Show

Horseless Carriage Introduced at NY Auto Show

AP (Apr. 17, 2014) An electric car that proponents hope will replace horse-drawn carriages in New York City has also been revealed at the auto show. (Apr. 17) Video provided by AP
Powered by NewsLook.com
Honda's New ASIMO Robot, More Human-Like Than Ever

Honda's New ASIMO Robot, More Human-Like Than Ever

AFP (Apr. 17, 2014) It walks and runs, even up and down stairs. It can open a bottle and serve a drink, and politely tries to shake hands with a stranger. Meet the latest ASIMO, Honda's humanoid robot. Duration: 00:54 Video provided by AFP
Powered by NewsLook.com
German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. 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