Evidence map›Paper›PMID 36818587›Full record

ArticleChemistry of materials : a publication of the American Chemical Society2023

Cation Exchange during the Synthesis of Colloidal Type-II ZnSe-Dot/CdS-Rod Nanocrystals.

Jannik Rebmann, Hans Werners, Florian Johst, Marcel Dohrmann, Yannic U Staechelin, Christian Strelow, Alf Mews, Tobias Kipp

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Article in Chemistry of materials : a publication of the American Chemical Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jannik RebmannInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
Hans WernersInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
Florian JohstInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.ORCID https://orcid.org/0000-0002-7594-8440
Marcel DohrmannInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
Yannic U StaechelinInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.ORCID https://orcid.org/0000-0001-8588-9117
Christian StrelowInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.ORCID https://orcid.org/0000-0002-5989-1675
Alf MewsInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.ORCID https://orcid.org/0000-0001-5739-8820
Tobias KippInstitute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.ORCID https://orcid.org/0000-0002-9663-7422

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cation exchange is known to occur during the synthesis of colloidal semiconductor heteronanoparticles, affecting their band gap and thus altering their optoelectronic properties. It is often neglected, especially when anisotropic heterostructures are discussed. We present a study on the role of cation exchange inevitably occurring during the growth of anisotropic dot-in-rod structures consisting of a spherical ZnSe core enclosed by a rod-shaped CdS shell. The material combination exhibits a type-II band alignment. Two reactions are compared: the shell-growth reaction of CdS on ZnSe and an exchange-only reaction of ZnSe cores to CdSe. Transmission electron microscopy and a comprehensive set of optical spectroscopy data, including linear and time-resolved absorption and fluorescence data, prove that cation exchange from ZnSe to CdSe is the dominant process in the initial stages of the shell-growth reaction. The degree of cation exchange before significant shell growth starts was determined to be about 50%, highlighting the importance of cation exchange during the heteronanostructure growth.

Identifiers

PMID36818587
PMCPMC9933437

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.