Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution
Abstract Since their discovery, cadmium chalcogenide nanoplatelets (NPLs) gained a lot of interest, not only due to their beneficial characteristic, but also because of their high affinity to self‐assemble into ordered stacks. Interestingly, the stacks showed both the properties of the single NPLs a...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-12-01
|
| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202300408 |
| _version_ | 1797392851592544256 |
|---|---|
| author | Rebecca T. Graf Kevin Tran Marina Rosebrock Hadir Borg Jakob Schlenkrich Franziska Lübkemann‐Warwas Franz Renz Dirk Dorfs Nadja C. Bigall |
| author_facet | Rebecca T. Graf Kevin Tran Marina Rosebrock Hadir Borg Jakob Schlenkrich Franziska Lübkemann‐Warwas Franz Renz Dirk Dorfs Nadja C. Bigall |
| author_sort | Rebecca T. Graf |
| collection | DOAJ |
| description | Abstract Since their discovery, cadmium chalcogenide nanoplatelets (NPLs) gained a lot of interest, not only due to their beneficial characteristic, but also because of their high affinity to self‐assemble into ordered stacks. Interestingly, the stacks showed both the properties of the single NPLs and new collective features, such as charge carrier transport within the stacks. Until now, the stacking was, to the best of the knowledge, only performed in non‐polar media mostly through the addition of antisolvents with higher polarity. Due to the fact, that many applications (e.g., photocatalysis) or procedures (such as gelation) occur in water, a route to self‐assemble stacks directly in aqueous solution is needed. In this work a new synthesis route is thus introduced to produce stacks directly in aqueous media. The NPLs are phase transferred with mercaptocarboxylic acids to an aqueous KOH solution followed by an addition of less polar antisolvents to initialize the stacking (e.g., tetrahydrofuran). Furthermore, a mechanism of the stacking as well as four possible driving forces involved in the process are proposed supported by transmission electron microscopy, dynamic light scattering, infrared spectroscopy, and x‐ray photoelectron spectroscopy measurements. |
| first_indexed | 2024-03-08T23:53:31Z |
| format | Article |
| id | doaj.art-30afce4b6bad41438d4376f3609a75b0 |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-08T23:53:31Z |
| publishDate | 2023-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-30afce4b6bad41438d4376f3609a75b02023-12-13T08:17:06ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-12-011035n/an/a10.1002/admi.202300408Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous SolutionRebecca T. Graf0Kevin Tran1Marina Rosebrock2Hadir Borg3Jakob Schlenkrich4Franziska Lübkemann‐Warwas5Franz Renz6Dirk Dorfs7Nadja C. Bigall8Institute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyLaboratory of Nano‐ and Quantum Engineering Leibniz Universität Hannover 30167 Hanover GermanyInstitute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyInstitute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyInstitute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyInstitute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyLaboratory of Nano‐ and Quantum Engineering Leibniz Universität Hannover 30167 Hanover GermanyInstitute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyInstitute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover GermanyAbstract Since their discovery, cadmium chalcogenide nanoplatelets (NPLs) gained a lot of interest, not only due to their beneficial characteristic, but also because of their high affinity to self‐assemble into ordered stacks. Interestingly, the stacks showed both the properties of the single NPLs and new collective features, such as charge carrier transport within the stacks. Until now, the stacking was, to the best of the knowledge, only performed in non‐polar media mostly through the addition of antisolvents with higher polarity. Due to the fact, that many applications (e.g., photocatalysis) or procedures (such as gelation) occur in water, a route to self‐assemble stacks directly in aqueous solution is needed. In this work a new synthesis route is thus introduced to produce stacks directly in aqueous media. The NPLs are phase transferred with mercaptocarboxylic acids to an aqueous KOH solution followed by an addition of less polar antisolvents to initialize the stacking (e.g., tetrahydrofuran). Furthermore, a mechanism of the stacking as well as four possible driving forces involved in the process are proposed supported by transmission electron microscopy, dynamic light scattering, infrared spectroscopy, and x‐ray photoelectron spectroscopy measurements.https://doi.org/10.1002/admi.202300408aqueous mediananoplateletsstackingself‐assembly |
| spellingShingle | Rebecca T. Graf Kevin Tran Marina Rosebrock Hadir Borg Jakob Schlenkrich Franziska Lübkemann‐Warwas Franz Renz Dirk Dorfs Nadja C. Bigall Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution Advanced Materials Interfaces aqueous media nanoplatelets stacking self‐assembly |
| title | Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution |
| title_full | Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution |
| title_fullStr | Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution |
| title_full_unstemmed | Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution |
| title_short | Self‐Assembly of Semiconductor Nanoplatelets into Stacks Directly in Aqueous Solution |
| title_sort | self assembly of semiconductor nanoplatelets into stacks directly in aqueous solution |
| topic | aqueous media nanoplatelets stacking self‐assembly |
| url | https://doi.org/10.1002/admi.202300408 |
| work_keys_str_mv | AT rebeccatgraf selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT kevintran selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT marinarosebrock selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT hadirborg selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT jakobschlenkrich selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT franziskalubkemannwarwas selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT franzrenz selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT dirkdorfs selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution AT nadjacbigall selfassemblyofsemiconductornanoplateletsintostacksdirectlyinaqueoussolution |