Issue 7, 2020

Enhanced light harvesting ability in zeolitic imidazolate frameworks through energy transfer from CdS nanowires

Abstract

Zeolitic imidazolate frameworks (ZIFs) represent a novel class of porous crystalline materials that have demonstrated potential as light harvesting materials for solar energy conversion. In order to facilitate their application in solar energy conversion, it is necessary to expand their absorption further into the realm of the solar spectrum. In this work, we report the incorporation of semiconductor cadmium sulfide nanowires (CdS NWs) into ZIF-67 (CdS@ZIF-67), where a broader region of the solar spectrum can be absorbed by CdS NWs and relayed to ZIF-67 through an energy transfer (EnT) process. Using steady-state emission and time resolved emission and absorption spectroscopy, we show that efficient EnT can occur from CdS NWs to ZIF-67 by selective excitation of CdS NWs. The EnT time is ∼729.9 ps, which corresponds to 71.2% EnT efficiency.

Graphical abstract: Enhanced light harvesting ability in zeolitic imidazolate frameworks through energy transfer from CdS nanowires

Supplementary files

Article information

Article type
Paper
Submitted
08 Dec 2019
Accepted
16 Jan 2020
First published
16 Jan 2020

Phys. Chem. Chem. Phys., 2020,22, 3849-3854

Author version available

Enhanced light harvesting ability in zeolitic imidazolate frameworks through energy transfer from CdS nanowires

Y. Zhou, W. Hu, S. Yang and J. Huang, Phys. Chem. Chem. Phys., 2020, 22, 3849 DOI: 10.1039/C9CP06634A

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