By Topic

Optoelectronic conversion by polarization current, triggered by space charges at organic-based interfaces

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
6 Author(s)
Hu, Laigui ; Department of Chemistry and Research Center for Materials Science, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan ; Noda, Yukiko ; Ito, Hiroshi ; Kishida, Hideo
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link: 

We report that a highly efficient optoelectronic conversion can be achieved by photogenerated space charges, which usually damp photocurrent. Theoretical analysis of metal-organic insulator-organic semiconductor-metal photocells indicates the generation of a large transient current that is triggered by photogenerated space charges and governed by the dielectric properties of the insulator layer. We experimentally demonstrated this mechanism with model photocells, revealing that the quantum efficiency can be dramatically increased by increasing the dielectric constant of the insulator.

Published in:

Applied Physics Letters  (Volume:96 ,  Issue: 24 )