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Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures
Recombination centers generated from structural and interfacial defects in nanoheterostructures (NHs) prevent effective photo-induced charge transfer and have blocked the advance of many photoresponsive applications. Strategies to construct high-quality interfaces in NHs are emerging but are limited...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418435/ https://www.ncbi.nlm.nih.gov/pubmed/36133727 http://dx.doi.org/10.1039/d1na00037c |
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author | Guo, Xueyi Liu, Sheng Wang, Weijia Li, Chongyao Yang, Ying Tian, Qinghua Liu, Yong |
author_facet | Guo, Xueyi Liu, Sheng Wang, Weijia Li, Chongyao Yang, Ying Tian, Qinghua Liu, Yong |
author_sort | Guo, Xueyi |
collection | PubMed |
description | Recombination centers generated from structural and interfacial defects in nanoheterostructures (NHs) prevent effective photo-induced charge transfer and have blocked the advance of many photoresponsive applications. Strategies to construct high-quality interfaces in NHs are emerging but are limited in the release of interfacial strain and the integrality of the sublattice. Herein, we synthesize single-particulate Cu(1.94)S–ZnS NHs with a continuous sublattice using a nanoscale cation exchange reaction (CE). Under near-infrared (NIR) radiation (λ = 1500 nm), femtosecond open-aperture (OA) Z-scan measurements are applied to investigate the nonlinear optical features of samples and verify the existence of plasma-induced charge transfer in the Cu(1.94)S–ZnS NHs system. The resulting charge transfer time (τ(CT)) of ∼0.091 picoseconds (ps) was confirmed by the femtosecond time-resolved pump–probe technique. Such an ultrafast charge transfer process has been rarely reported in semiconductor–semiconductor NHs. The results suggest that CE can be used as a promising tool to construct well-ordered interfacial structures, which are significant for the performance enhancement of NHs for photon utilization. |
format | Online Article Text |
id | pubmed-9418435 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94184352022-09-20 Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures Guo, Xueyi Liu, Sheng Wang, Weijia Li, Chongyao Yang, Ying Tian, Qinghua Liu, Yong Nanoscale Adv Chemistry Recombination centers generated from structural and interfacial defects in nanoheterostructures (NHs) prevent effective photo-induced charge transfer and have blocked the advance of many photoresponsive applications. Strategies to construct high-quality interfaces in NHs are emerging but are limited in the release of interfacial strain and the integrality of the sublattice. Herein, we synthesize single-particulate Cu(1.94)S–ZnS NHs with a continuous sublattice using a nanoscale cation exchange reaction (CE). Under near-infrared (NIR) radiation (λ = 1500 nm), femtosecond open-aperture (OA) Z-scan measurements are applied to investigate the nonlinear optical features of samples and verify the existence of plasma-induced charge transfer in the Cu(1.94)S–ZnS NHs system. The resulting charge transfer time (τ(CT)) of ∼0.091 picoseconds (ps) was confirmed by the femtosecond time-resolved pump–probe technique. Such an ultrafast charge transfer process has been rarely reported in semiconductor–semiconductor NHs. The results suggest that CE can be used as a promising tool to construct well-ordered interfacial structures, which are significant for the performance enhancement of NHs for photon utilization. RSC 2021-03-23 /pmc/articles/PMC9418435/ /pubmed/36133727 http://dx.doi.org/10.1039/d1na00037c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Guo, Xueyi Liu, Sheng Wang, Weijia Li, Chongyao Yang, Ying Tian, Qinghua Liu, Yong Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures |
title | Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures |
title_full | Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures |
title_fullStr | Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures |
title_full_unstemmed | Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures |
title_short | Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S–ZnS nanoheterostructures |
title_sort | plasmon-induced ultrafast charge transfer in single-particulate cu(1.94)s–zns nanoheterostructures |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418435/ https://www.ncbi.nlm.nih.gov/pubmed/36133727 http://dx.doi.org/10.1039/d1na00037c |
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