Issue 37, 2017

Photo-switchable field-effect transistors based on two-dimensional stilbene oligomer crystals

Abstract

We demonstrate the utilization of photochromic two-dimensional (2D) organic single crystals as the channel of organic field-effect transistors (OFETs). High-quality millimeter-sized 2D crystals of semiconducting 1,4-bis(4-methylstyryl)benzene (p-MSB) are grown via a simple one-step interfacial self-assembly method. A typical photo-switching behavior is observed, and the drain current can be reversibly modulated by the alternation of low-intensity irradiation (395 nm) and dark storage, confirming the occurrence of transcis photoisomerization of stilbene in the 2D-crystalline phase. As a comparison, different photoresponsive behaviors are observed in OFETs based on bulk p-MSB crystals, indicating that highly efficient photoisomerization and photo-switching behavior occur when the crystal thickness of the conduction channel decreases down to a few molecular layers.

Graphical abstract: Photo-switchable field-effect transistors based on two-dimensional stilbene oligomer crystals

Article information

Article type
Paper
Submitted
17 Jul 2017
Accepted
26 Aug 2017
First published
29 Aug 2017

J. Mater. Chem. C, 2017,5, 9597-9601

Photo-switchable field-effect transistors based on two-dimensional stilbene oligomer crystals

M. Cao, Z. Cai, X. Chen, K. Yi and D. Wei, J. Mater. Chem. C, 2017, 5, 9597 DOI: 10.1039/C7TC03190D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements