Controlled Morphological Arrangement of Anisotropic Nanoparticles via Oxidation or Ionic Cross-Linking

Marina Rosebrock; Rebecca T. Graf; Daniel Kranz; Hannah Christmann; Hannah Bronner; Adrian Hannebauer; Dániel Zámbó; Dirk Dorfs; Nadja C. Bigall

doi:10.1002/sstr.202300186

Controlled Morphological Arrangement of Anisotropic Nanoparticles via Oxidation or Ionic Cross-Linking

Marina Rosebrock
, Rebecca T. Graf
, Daniel Kranz
, Hannah Christmann
, Hannah Bronner
, Adrian Hannebauer
, Dániel Zámbó
, Dirk Dorfs
, Nadja C. Bigall^*

^*Corresponding author for this work

Centre for Energy Research

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

Abstract

For a long time, researchers in nanochemistry have been exploring ways to create 3D structures using cross-linked nanoparticles, such as lyogels and aerogels. In the present work, how simple modifications to the nanoparticle surface can be used to influence the resulting structure in a targeted manner is demonstrated. Specifically, positively charged surface ligands containing amine groups are compared to negatively charged ligands typically used, containing carboxylic acid groups, to generate network structures using different gelation agents. By utilizing bridging through S²⁻ ions, a network structure of anisotropic CdSe/CdS nanorods is generated, packing them side by side at the nanoscopic level. The resulting structures exhibit improved fluorescence properties comparable to those of tip-to-tip connected networks but without harsh conditions for the nanoparticle surfaces. This innovative new method of gelation using S²⁻ ions can achieve adequate photoluminescence quantum yields as well as prolonged fluorescence lifetimes compared to other network structures.

Original language	English
Article number	2300186
Number of pages	9
Journal	Small Structures
Volume	4
Issue number	12
DOIs	https://doi.org/10.1002/sstr.202300186 https://doi.org/10.15488/15642
Publication status	Published - 11 Dec 2023

Keywords

aerogels
fluorescence enhancements
ionic gelations
nanoparticles
semiconductors

ASJC Scopus subject areas

General Materials Science
Engineering (miscellaneous)
Chemistry (miscellaneous)
Energy (miscellaneous)
Environmental Science (miscellaneous)

Access to Document

10.1002/sstr.202300186Licence: CC BY 4.0
10.15488/15642Licence: CC BY 4.0

Cite this

@article{610b7a8bac3e4eb59624c1a782f04c44,

title = "Controlled Morphological Arrangement of Anisotropic Nanoparticles via Oxidation or Ionic Cross-Linking",

abstract = "For a long time, researchers in nanochemistry have been exploring ways to create 3D structures using cross-linked nanoparticles, such as lyogels and aerogels. In the present work, how simple modifications to the nanoparticle surface can be used to influence the resulting structure in a targeted manner is demonstrated. Specifically, positively charged surface ligands containing amine groups are compared to negatively charged ligands typically used, containing carboxylic acid groups, to generate network structures using different gelation agents. By utilizing bridging through S2− ions, a network structure of anisotropic CdSe/CdS nanorods is generated, packing them side by side at the nanoscopic level. The resulting structures exhibit improved fluorescence properties comparable to those of tip-to-tip connected networks but without harsh conditions for the nanoparticle surfaces. This innovative new method of gelation using S2− ions can achieve adequate photoluminescence quantum yields as well as prolonged fluorescence lifetimes compared to other network structures.",

keywords = "aerogels, fluorescence enhancements, ionic gelations, nanoparticles, semiconductors",

author = "Marina Rosebrock and Graf, \{Rebecca T.\} and Daniel Kranz and Hannah Christmann and Hannah Bronner and Adrian Hannebauer and D{\'a}niel Z{\'a}mb{\'o} and Dirk Dorfs and Bigall, \{Nadja C.\}",

note = "Funding Information: This work received funding from the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) under Germany's excellence strategy within the cluster of excellence PhoenixD (EXC 2122, project ID 390833453) and the grant BI 1708/4-3. The authors acknowledge the cfMATCH providing the equipment for the Hg porosimetry and argon physisorption measurements. D. D. would like to acknowledge the support by the German Research Foundation (DFG research Grant DO 1580/5-1). D.K. would like to thank the Konrad–Adenauer–Stiftung (KAS) for financial support. D.Z. acknowledges the project no. FK-142148 financed by the Hungarian Scientific Research Fund (NRDI Fund) as well as the project no. TKP-2021-NKTA-05 implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. R.T.G. and A.H. would like to thank the Hannover School for Nanotechnology for funding. The authors would like to thank A. Feldhoff for the SEM facilities. The authors would like to thank the Laboratorium f{\"u}r Nano- und Quantenengineering (LNQE) for TEM facilities. Open Access funding enabled and organized by Projekt DEAL. Funding Information: This work received funding from the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) under Germany's excellence strategy within the cluster of excellence PhoenixD (EXC 2122, project ID 390833453) and the grant BI 1708/4‐3. The authors acknowledge the cfMATCH providing the equipment for the Hg porosimetry and argon physisorption measurements. D. D. would like to acknowledge the support by the German Research Foundation (DFG research Grant DO 1580/5‐1). D.K. would like to thank the Konrad–Adenauer–Stiftung (KAS) for financial support. D.Z. acknowledges the project no. FK‐142148 financed by the Hungarian Scientific Research Fund (NRDI Fund) as well as the project no. TKP‐2021‐NKTA‐05 implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. R.T.G. and A.H. would like to thank the Hannover School for Nanotechnology for funding. The authors would like to thank A. Feldhoff for the SEM facilities. The authors would like to thank the Laboratorium f{\"u}r Nano‐ und Quantenengineering (LNQE) for TEM facilities. ",

year = "2023",

month = dec,

day = "11",

doi = "10.1002/sstr.202300186",

language = "English",

volume = "4",

journal = "Small Structures",

issn = "2688-4062",

publisher = "Wiley-VCH Verlag",

number = "12",

}

TY - JOUR

T1 - Controlled Morphological Arrangement of Anisotropic Nanoparticles via Oxidation or Ionic Cross-Linking

AU - Rosebrock, Marina

AU - Graf, Rebecca T.

AU - Kranz, Daniel

AU - Christmann, Hannah

AU - Bronner, Hannah

AU - Hannebauer, Adrian

AU - Zámbó, Dániel

AU - Dorfs, Dirk

AU - Bigall, Nadja C.

N1 - Funding Information: This work received funding from the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) under Germany's excellence strategy within the cluster of excellence PhoenixD (EXC 2122, project ID 390833453) and the grant BI 1708/4-3. The authors acknowledge the cfMATCH providing the equipment for the Hg porosimetry and argon physisorption measurements. D. D. would like to acknowledge the support by the German Research Foundation (DFG research Grant DO 1580/5-1). D.K. would like to thank the Konrad–Adenauer–Stiftung (KAS) for financial support. D.Z. acknowledges the project no. FK-142148 financed by the Hungarian Scientific Research Fund (NRDI Fund) as well as the project no. TKP-2021-NKTA-05 implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. R.T.G. and A.H. would like to thank the Hannover School for Nanotechnology for funding. The authors would like to thank A. Feldhoff for the SEM facilities. The authors would like to thank the Laboratorium für Nano- und Quantenengineering (LNQE) for TEM facilities. Open Access funding enabled and organized by Projekt DEAL. Funding Information: This work received funding from the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) under Germany's excellence strategy within the cluster of excellence PhoenixD (EXC 2122, project ID 390833453) and the grant BI 1708/4‐3. The authors acknowledge the cfMATCH providing the equipment for the Hg porosimetry and argon physisorption measurements. D. D. would like to acknowledge the support by the German Research Foundation (DFG research Grant DO 1580/5‐1). D.K. would like to thank the Konrad–Adenauer–Stiftung (KAS) for financial support. D.Z. acknowledges the project no. FK‐142148 financed by the Hungarian Scientific Research Fund (NRDI Fund) as well as the project no. TKP‐2021‐NKTA‐05 implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. R.T.G. and A.H. would like to thank the Hannover School for Nanotechnology for funding. The authors would like to thank A. Feldhoff for the SEM facilities. The authors would like to thank the Laboratorium für Nano‐ und Quantenengineering (LNQE) for TEM facilities.

PY - 2023/12/11

Y1 - 2023/12/11

N2 - For a long time, researchers in nanochemistry have been exploring ways to create 3D structures using cross-linked nanoparticles, such as lyogels and aerogels. In the present work, how simple modifications to the nanoparticle surface can be used to influence the resulting structure in a targeted manner is demonstrated. Specifically, positively charged surface ligands containing amine groups are compared to negatively charged ligands typically used, containing carboxylic acid groups, to generate network structures using different gelation agents. By utilizing bridging through S2− ions, a network structure of anisotropic CdSe/CdS nanorods is generated, packing them side by side at the nanoscopic level. The resulting structures exhibit improved fluorescence properties comparable to those of tip-to-tip connected networks but without harsh conditions for the nanoparticle surfaces. This innovative new method of gelation using S2− ions can achieve adequate photoluminescence quantum yields as well as prolonged fluorescence lifetimes compared to other network structures.

AB - For a long time, researchers in nanochemistry have been exploring ways to create 3D structures using cross-linked nanoparticles, such as lyogels and aerogels. In the present work, how simple modifications to the nanoparticle surface can be used to influence the resulting structure in a targeted manner is demonstrated. Specifically, positively charged surface ligands containing amine groups are compared to negatively charged ligands typically used, containing carboxylic acid groups, to generate network structures using different gelation agents. By utilizing bridging through S2− ions, a network structure of anisotropic CdSe/CdS nanorods is generated, packing them side by side at the nanoscopic level. The resulting structures exhibit improved fluorescence properties comparable to those of tip-to-tip connected networks but without harsh conditions for the nanoparticle surfaces. This innovative new method of gelation using S2− ions can achieve adequate photoluminescence quantum yields as well as prolonged fluorescence lifetimes compared to other network structures.

KW - aerogels

KW - fluorescence enhancements

KW - ionic gelations

KW - nanoparticles

KW - semiconductors

UR - https://www.scopus.com/pages/publications/85179342876

U2 - 10.1002/sstr.202300186

DO - 10.1002/sstr.202300186

M3 - Article

AN - SCOPUS:85179342876

SN - 2688-4062

VL - 4

JO - Small Structures

JF - Small Structures

IS - 12

M1 - 2300186

ER -

Controlled Morphological Arrangement of Anisotropic Nanoparticles via Oxidation or Ionic Cross-Linking

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Multikomponentelle Assemblierungen aus Halbleiter- und Edelmetallnanopartikeln

Synthesis of Heterogels from Metal and Metal Oxide Nanocrystals by Means of Cryogelation Method for Application in Electrocatalysis

PhoenixD: Cluster of Excellence 2122/1: Photonics, Optics, and Engineering – Innovation Across Disciplines

Plasmonic nanocrystals and multi-component nanocrystals for activation of chemical reactions using ultra-short temperature pulses

Cite this

Controlled Morphological Arrangement of Anisotropic Nanoparticles via Oxidation or Ionic Cross-Linking

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Research output

Multikomponentelle Assemblierungen aus Halbleiter- und Edelmetallnanopartikeln

Projects

Synthesis of Heterogels from Metal and Metal Oxide Nanocrystals by Means of Cryogelation Method for Application in Electrocatalysis

PhoenixD: Cluster of Excellence 2122/1: Photonics, Optics, and Engineering – Innovation Across Disciplines

Plasmonic nanocrystals and multi-component nanocrystals for activation of chemical reactions using ultra-short temperature pulses

Cite this