Issue 26, 2017

Multi-functional polyimides containing tetraphenyl fluorene moieties: fluorescence and resistive switching behaviors

Abstract

Two novel aromatic polyimides (PIs), TPF27OPI and TPF99OPI, with a tetraphenyl fluorene (TPF) unit as the electron donor (D) and a 4,4′-oxydiphthalic dianhydride (ODPA) unit as the electron acceptor (A) were synthesized and characterized. Both of the as-synthesized PIs showed obvious photoluminescence properties, and compared with TPF27OPI, where the fluorene unit is located in the polymer main chain, TPF99OPI with a fluorene unit in the side chain showed stronger fluorescence and a fluorescence blue shift in the film state. The memory device with a sandwich configuration of ITO/TPF27OPI/Al showed the nonvolatile “write once, read many” (WORM) switching behavior, while that of ITO/TPF99OPI/Al exhibited “static random access memory” (SRAM) switching behavior. Both of the devices exhibited a stable ON/OFF current ratio above 104 and a long operation time, following 104 pulse reading cycles with no obvious degradation in current. The mechanism of the resistive switching behaviors was discussed using the experimental and molecular simulation results. These multi-functional polyimides showed attractive potential applications in the field of polymer optoelectronic devices and memory devices.

Graphical abstract: Multi-functional polyimides containing tetraphenyl fluorene moieties: fluorescence and resistive switching behaviors

Supplementary files

Article information

Article type
Paper
Submitted
25 4月 2017
Accepted
05 6月 2017
First published
05 6月 2017

J. Mater. Chem. C, 2017,5, 6457-6466

Multi-functional polyimides containing tetraphenyl fluorene moieties: fluorescence and resistive switching behaviors

L. Qu, S. Huang, Y. Zhang, Z. Chi, S. Liu, X. Chen and J. Xu, J. Mater. Chem. C, 2017, 5, 6457 DOI: 10.1039/C7TC01807J

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