Issue 35, 2021

Platinum-free photoelectrochromic devices working with copper-based electrolytes for ultrastable smart windows

Abstract

Photoelectrochromic systems are devices designed for large-scale manufacturing of smart windows, capable of changing their transmittance according to external environmental conditions. This communication proposes the replacement of the two most critical photoelectrochemical device components studied so far, namely the counter electrode and the redox mediator. Regarding the first, graphene nanoplatelets are used to replace platinum, maintaining both its optical and electrocatalytic properties, and at the same time reducing the device cost. Secondly, a copper-based redox pair was chosen to solve the corrosion problems typically encountered with the iodine-based mediator. The combination of the above components led to devices with high performance (coloration speeds in the order of seconds, with a maximum contrast ratio of 10.4 : 1), as well as the achievement of a long-term stability record (over 400 days) for these photoelectrochromic systems.

Graphical abstract: Platinum-free photoelectrochromic devices working with copper-based electrolytes for ultrastable smart windows

Supplementary files

Article information

Article type
Communication
Submitted
27 апр 2021
Accepted
18 июн 2021
First published
18 июн 2021

J. Mater. Chem. A, 2021,9, 19687-19691

Platinum-free photoelectrochromic devices working with copper-based electrolytes for ultrastable smart windows

L. Lavagna, G. Syrrokostas, L. Fagiolari, J. Amici, C. Francia, S. Bodoardo, G. Leftheriotis and F. Bella, J. Mater. Chem. A, 2021, 9, 19687 DOI: 10.1039/D1TA03544D

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