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Updated: Dec 29, 2025
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
Published on: August 23, 2012
Enhanced light harvesting ability in zeolitic imidazolate frameworks through energy transfer from CdS nanowires
Yixuan Zhou1, Wenhui Hu2, Sizhuo Yang2
1School of Applied Physics and Materials, Wuyi University, Jiangmen, 529020, China and Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, USA. jier.huang@marquette.edu.
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.
