Sunday, December 10, 2023
SCIENMAG: Latest Science and Health News
No Result
View All Result
  • Login
  • HOME PAGE
  • BIOLOGY
  • CHEMISTRY AND PHYSICS
  • MEDICINE
    • Cancer
    • Infectious Emerging Diseases
  • SPACE
  • TECHNOLOGY
  • CONTACT US
  • HOME PAGE
  • BIOLOGY
  • CHEMISTRY AND PHYSICS
  • MEDICINE
    • Cancer
    • Infectious Emerging Diseases
  • SPACE
  • TECHNOLOGY
  • CONTACT US
No Result
View All Result
Scienmag - Latest science news from science magazine
No Result
View All Result
Home SCIENCE NEWS Chemistry AND Physics

Dawn of organic single crystal electronics

April 28, 2017
in Chemistry AND Physics
0
Share on FacebookShare on Twitter
IMAGE

Credit: Institute for Molecular Science

Researchers at the Institute for Molecular Science, National Institutes of Natural Sciences (Japan) have developed a method for high performance doping of organic single crystal. Furthermore, they succeeded in the Hall effect measurement of the crystal — the world's first case. The research has been published in the Advanced Materials.

Controlling "holes" and "electrons" responsible for electric conduction of p-type and n-type semiconductors by doping — adding a trace amount of impurity — had been the central technology in the 20th century's inorganic single crystal electronics represented by silicon chips, solar cells, and light emitting diodes. The number of carriers (holes and electrons) created by doping and their moving speed (mobility) can be freely evaluated by "Hall effect measurement" using a magnetic field. However, in the field of organic electronics emerging in the 21th century, no one has ever attempted to dope impurities into an organic single crystal itself nor measure its Hall effect.

"We have combined the rubrene organic single crystal growth technique with our original ultra-slow deposition technique of one billionth of a nanometer (10- 9 nm) per second, which includes a rotating shutter having aperture." explains Chika Ohashi, a PhD student, SOKENDAI in the group. "For the first time, we have succeeded in producing the 1 ppm doped organic single crystal and have detected its Hall effect signal." The doping efficiency of the organic single crystal was 24%, which is a much higher performance compared to 1% for the vacuum deposited amorphous film of the same material.

Lab head Prof. Masahiro Hiramoto sees the present results have the meaning of dawn of organic single crystal electronics similar to the silicon single crystal electronics. In future, devices such as high performance organic single crystal solar cells may be developed.

###

Information of the paper

Journal: Advanced Materials
Title: Hall effect in bulk-doped organic single crystals
Authors: Chika Ohashi, Seiichiro Izawa, Yusuke Shinmura, Mitsuru Kikuchi, Seiji Watase, Masanobu Izaki, Hiroyoshi Naito, Masahiro Hiramoto
Date: 2017/4/18

Media Contact

Masahiro Hiramoto
hiramoto@ims.ac.jp
81-564-595-537

http://www.nins.jp/english/

Original Source

https://www.ims.ac.jp/en/news/2017/04/18_3649.html http://dx.doi.org/10.1002/adma.201605619

Share25Tweet16Share4ShareSendShare
  • Long-term results show combination treatment that skips chemotherapy is effective for older patients with Ph+ ALL

    66 shares
    Share 26 Tweet 17
  • ASH: Targeted oral therapy reduced disease burden and improved symptoms for patients with rare blood disorder

    65 shares
    Share 26 Tweet 16
  • Taming oceans for 24/7 power

    66 shares
    Share 26 Tweet 17
  • Wayne State University announces creation of two research centers and institutes that aim to impact the health of Detroiters and beyond

    69 shares
    Share 28 Tweet 17
  • First-in-human clinical trial of CAR T cell therapy with new binding mechanism shows promising early responses

    65 shares
    Share 26 Tweet 16
  • ASH: Novel menin inhibitors show promise for patients with advanced acute myeloid leukemias

    64 shares
    Share 26 Tweet 16
ADVERTISEMENT

About us

We bring you the latest science news from best research centers and universities around the world. Check our website.

Latest NEWS

Study finds plant nurseries are exacerbating the climate-driven spread of 80% of invasive species

Researchers predict climate change-driven reduction in beneficial plant microbes

New study highlights COVID-19’s adaptive strategy for infection

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 208 other subscribers

© 2023 Scienmag- Science Magazine: Latest Science News.

No Result
View All Result
  • HOME PAGE
  • BIOLOGY
  • CHEMISTRY AND PHYSICS
  • MEDICINE
    • Cancer
    • Infectious Emerging Diseases
  • SPACE
  • TECHNOLOGY
  • CONTACT US

© 2023 Scienmag- Science Magazine: Latest Science News.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In