Supramolecular nanofibers paired with nanohole substrate improve exciton transport in organic solid
Self-assembling, anthracene-based supramolecular nanofibers can enable excitons to migrate hundreds of nanometers, according to a new experimental finding by researchers at Science Tokyo.
Self-assembling, anthracene-based supramolecular nanofibers can enable excitons to migrate hundreds of nanometers, according to a new experimental finding by researchers at Science Tokyo.
The short version
- Coupling these nanofibers with a plasmonic gold nanohole substrate further doubles exciton diffusivity.
- By mitigating the limited diffusivity of singlet excitons in organic semiconductors, this approach offers a new strategy for improving optoelectronic technologies.
- This article has been reviewed according to Science X's editorial process and policies .
What happened
For decades, one of the biggest challenges in organic optoelectronics has been the limited diffusivity of excitons. Created when light is absorbed, excitons diffuse through the semiconducting material before they can dissociate into free charge carriers to generate electricity.
Why it matters
However, excitons in conventional organic semiconductors typically diffuse only up to 5–20 nm before recombining, limiting the performance of optoelectronic devices.
Summary by Nerd News Network. Read the full article at Phys.org via the links above and below.