Vertically oriented self-assembly of colloidal CdSe/CdZnS quantum wells controlled <i>via</i> hydrophilicity/lipophilicity balance: optical gain of quantum well stacks for amplified spontaneous emission and random lasing

DIKMEN, ZEYNEP; Isik, Ahmet Tarik; Bozkaya, Iklim; Baruj, Hamed Dehghanpour; Canımkurbey, Betül; Shabani, Farzan; Ahmad, M.; Demir, Hilmi Volkan

doi:10.1039/d3nr00170a

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…The self assembly process on the gold precursor containing subphase is depicted in Figure 4. Thicker film of gold tipped nanorods were prepared for EDS analysis by top picking method onto a silicon wafer as we reported before [18].…”

Section: Resultsmentioning

confidence: 99%

“…The self assembly process can be controlled by external fields, by interparticle interactions as well as solvent, subphase or capping ligand choice. Binary solvent/nonsolvent usage also affects the self assembly tendency of the nanocrystals [18]. Ordered assemblies and orientation control of nanorods and their metal tipped counterparts are important for investigation their chemical and physical interactions among nanocrystals.…”

Section: Introductionmentioning

confidence: 99%

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NOVEL APPROACH FOR ONE-POT SELF-ASSEMBLED MONOLAYER PREPARATION OF GOLD TIPPED CdSe/CdS NANORODS

Dikmen

2024

Eskişehir Technical University Journal of Science and Technology a - Applied Sciences and Engineering

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In this study, CdSe/CdS nanorods (NRs) were synthesized via hot injection method to perform simultaneous self-assembly studies with gold tip formation on the nanorods. In this new approach, we propose and demonstrate reductant chemical and gold organosol-free synthesis of gold-tipped nanocrystals on the subphase. Instead of gold organosol usage, gold precursor was prepared by addition of gold source into subphase, and photocatalytic reduction of gold on the tip of nanorods was achieved by exciting the samples under UV-light excitation. Reduction of gold nanoparticles on the tip of NRs was also tried by heating effect, which results in nanopillar formation. The optical properties of these nanorods were determined by spectrophotometric measurements, and gold-tipped nanorods were imaged by TEM analysis. This method enables self-assembly of nanorods and following gold tip formation on the subphase, and it can pave the way to prepare well-defined metal-tipped oriented surfaces that can be used for optical and photocatalysis applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NOVEL APPROACH FOR ONE-POT SELF-ASSEMBLED MONOLAYER PREPARATION OF GOLD TIPPED CdSe/CdS NANORODS

Dikmen

2024

Eskişehir Technical University Journal of Science and Technology a - Applied Sciences and Engineering

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Gold-tipped CdSe/CdZnS colloidal quantum wells as non-quenching plasmonic particles for optical applications

Dikmen

2024

Optical Materials

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The Cd0.8Zn0.2S/In2S3 porous nanotubes heterojunction towards enhanced visible light photocatalytic H2 evolution and photodegradation via MOFs self-template and bimetallic synergism

Cao,

Xu,

Que

et al. 2024

Renewable Energy

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Vertically oriented self-assembly of colloidal CdSe/CdZnS quantum wells controlled via hydrophilicity/lipophilicity balance: optical gain of quantum well stacks for amplified spontaneous emission and random lasing

Abstract: We propose and demonstrate vertically-oriented self-assembly of colloidal quantum wells (CQWs) that allows for stacking CdSe/CdZnS core/shell CQWs in the film for the purposes of amplified spontaneous emission (ASE) and...

Cited by 6 publications

References 44 publications

NOVEL APPROACH FOR ONE-POT SELF-ASSEMBLED MONOLAYER PREPARATION OF GOLD TIPPED CdSe/CdS NANORODS

NOVEL APPROACH FOR ONE-POT SELF-ASSEMBLED MONOLAYER PREPARATION OF GOLD TIPPED CdSe/CdS NANORODS

Gold-tipped CdSe/CdZnS colloidal quantum wells as non-quenching plasmonic particles for optical applications

The Cd0.8Zn0.2S/In2S3 porous nanotubes heterojunction towards enhanced visible light photocatalytic H2 evolution and photodegradation via MOFs self-template and bimetallic synergism

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