Issue 24, 2023

Porous film impregnation method for record-efficiency visible-to-UV photon upconversion and subsolar light harvesting

Abstract

Photon upconversion from visible light to ultraviolet (UV) light is useful for various photochemical reactions such as artificial photosynthesis, but its efficiency is low under practical film conditions. Here, we demonstrate a film with a record-high visible-to-UV upconversion efficiency of 27.6% by simply soaking a porous film with a low-volatile upconversion solution. Furthermore, by combining this film with a microlens array, a significantly low threshold excitation light intensity of less than 0.60 mW cm−2, at least one order of magnitude lower than solar irradiance, is achieved.

Graphical abstract: Porous film impregnation method for record-efficiency visible-to-UV photon upconversion and subsolar light harvesting

Supplementary files

Article information

Article type
Communication
Submitted
19 1月 2023
Accepted
27 3月 2023
First published
28 3月 2023

J. Mater. Chem. C, 2023,11, 8002-8006

Author version available

Porous film impregnation method for record-efficiency visible-to-UV photon upconversion and subsolar light harvesting

N. Harada, M. Uji, B. Singh, N. Kimizuka and N. Yanai, J. Mater. Chem. C, 2023, 11, 8002 DOI: 10.1039/D3TC00236E

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