Bright and stable gold nanocluster assemblies by silica/zirconia double-shell encapsulation

Shaochen Zhou; Yanyan Duan; Kai Liu; Robin H.A. Ras

doi:10.1039/d2tc00824f

Bright and stable gold nanocluster assemblies by silica/zirconia double-shell encapsulation

Shaochen Zhou, Yanyan Duan, Kai Liu, Robin H.A. Ras^*

^*Corresponding author for this work

IMDEA Materials Institute

Research output: Contribution to journal › Article › Scientific › peer-review

5 Citations (Scopus)

45 Downloads (Pure)

Abstract

Ultrasmall gold nanoclusters are fascinating fluorescent materials with many unique properties, yet, to render them highly luminescent and stable remains challenging. In this work, solvent-induced aggregates of gold nanoclusters are encapsulated in silica/zirconia nanostructures, realizing a significantly enhanced photoluminescence efficiency and stability. These silica and zirconia coated gold nanocluster aggregates achieved a photoluminescence quantum yield of ∼55%, with high resistance to photobleaching and water, due to the stabilization by the dual-oxide matrix. Furthermore, we demonstrate their suitability for visualizing latent fingerprints.

Original language	English
Pages (from-to)	10001–10008
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	10
Issue number	27
DOIs	https://doi.org/10.1039/d2tc00824f
Publication status	Published - 14 Jul 2022
MoE publication type	A1 Journal article-refereed

Access to Document

10.1039/d2tc00824fLicence: CC BY

Bright and stable gold nanocluster assemblies by silica_zirconia double-shell encapsulationFinal published version, 4.82 MBLicence: CC BY

Cite this

@article{7e6b8de3993d4a98bb181d1385e13db3,

title = "Bright and stable gold nanocluster assemblies by silica/zirconia double-shell encapsulation",

abstract = "Ultrasmall gold nanoclusters are fascinating fluorescent materials with many unique properties, yet, to render them highly luminescent and stable remains challenging. In this work, solvent-induced aggregates of gold nanoclusters are encapsulated in silica/zirconia nanostructures, realizing a significantly enhanced photoluminescence efficiency and stability. These silica and zirconia coated gold nanocluster aggregates achieved a photoluminescence quantum yield of ∼55%, with high resistance to photobleaching and water, due to the stabilization by the dual-oxide matrix. Furthermore, we demonstrate their suitability for visualizing latent fingerprints.",

author = "Shaochen Zhou and Yanyan Duan and Kai Liu and Ras, {Robin H.A.}",

note = "Funding Information: This work was carried out under the Academy of Finland Center of Excellence Program (2022-2029) in Life-Inspired Hybrid Materials (LIBER) (project number 346109), Academy Project (310799) and Academy Postdoctoral Research Grant (13332370). We also acknowledge the provision of facilities and technical support by the OtaNano Nanomicroscopy Center of Aalto University (Aalto NMC). Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry",

year = "2022",

month = jul,

day = "14",

doi = "10.1039/d2tc00824f",

language = "English",

volume = "10",

pages = "10001–10008",

journal = "Journal of Materials Chemistry C",

issn = "2050-7526",

publisher = "Royal Society of Chemistry",

number = "27",

}

TY - JOUR

T1 - Bright and stable gold nanocluster assemblies by silica/zirconia double-shell encapsulation

AU - Zhou, Shaochen

AU - Duan, Yanyan

AU - Liu, Kai

AU - Ras, Robin H.A.

N1 - Funding Information: This work was carried out under the Academy of Finland Center of Excellence Program (2022-2029) in Life-Inspired Hybrid Materials (LIBER) (project number 346109), Academy Project (310799) and Academy Postdoctoral Research Grant (13332370). We also acknowledge the provision of facilities and technical support by the OtaNano Nanomicroscopy Center of Aalto University (Aalto NMC). Publisher Copyright: © 2022 The Royal Society of Chemistry

PY - 2022/7/14

Y1 - 2022/7/14

N2 - Ultrasmall gold nanoclusters are fascinating fluorescent materials with many unique properties, yet, to render them highly luminescent and stable remains challenging. In this work, solvent-induced aggregates of gold nanoclusters are encapsulated in silica/zirconia nanostructures, realizing a significantly enhanced photoluminescence efficiency and stability. These silica and zirconia coated gold nanocluster aggregates achieved a photoluminescence quantum yield of ∼55%, with high resistance to photobleaching and water, due to the stabilization by the dual-oxide matrix. Furthermore, we demonstrate their suitability for visualizing latent fingerprints.

AB - Ultrasmall gold nanoclusters are fascinating fluorescent materials with many unique properties, yet, to render them highly luminescent and stable remains challenging. In this work, solvent-induced aggregates of gold nanoclusters are encapsulated in silica/zirconia nanostructures, realizing a significantly enhanced photoluminescence efficiency and stability. These silica and zirconia coated gold nanocluster aggregates achieved a photoluminescence quantum yield of ∼55%, with high resistance to photobleaching and water, due to the stabilization by the dual-oxide matrix. Furthermore, we demonstrate their suitability for visualizing latent fingerprints.

UR - http://www.scopus.com/inward/record.url?scp=85133141174&partnerID=8YFLogxK

U2 - 10.1039/d2tc00824f

DO - 10.1039/d2tc00824f

M3 - Article

AN - SCOPUS:85133141174

SN - 2050-7526

VL - 10

SP - 10001

EP - 10008

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 27

ER -

Bright and stable gold nanocluster assemblies by silica/zirconia double-shell encapsulation

Abstract

Access to Document

Other files and links

Fingerprint

-: Center of Excellence in Life-inspired Hybrid Materials

-: Self-construction superhydrophobic surfaces

Ultraphotostable fluorescent metal nanoclusters

OtaNano

OtaNano - Nanomicroscopy Center

Cite this

Bright and stable gold nanocluster assemblies by silica/zirconia double-shell encapsulation

Abstract

Access to Document

Other files and links

Fingerprint

Projects

-: Center of Excellence in Life-inspired Hybrid Materials

-: Self-construction superhydrophobic surfaces

Ultraphotostable fluorescent metal nanoclusters

Equipment

OtaNano

OtaNano - Nanomicroscopy Center

Cite this