Skip to Main content Skip to Navigation
Theses

Encapsulation de nanocristaux II-VI dans une matrice semiconductrice de pérovskite hybride d’halogénure de plomb en vue de la création d’un dispositif de contrôle du clignotement

Abstract : To construct a device for controlling the blinking of nanocrystals, it was necessary to create a solid-state active material that can be integrated in such an apparatus. To this end, we have encapsulated cadmium-based quantum dots (QDs) in a crystalline matrix of a hybrid lead-bromide perovskite. This manuscript describes all the steps that have been undertaken to achieve the creation of this new composite. We have developed a synthesis of QDs that are resistant to encapsulation in an ionic matrix by means of an organic-inorganic ligand exchange that allowed us to integrate nanocrystals into the matrix while conserving their luminescence properties. We were thus able to document efficient encapsulation and a coupling between the QDs and the matrix. These two characteristics are favorable for using this composite in a control device which ultimately aims at optically following the luminescence of the BQs and applying an electric field to extract and evacuate the excess charges responsible for the nonemissive state. The successful completion of this step will enable us in the future to study the phenomenon of blinking and, more importantly, to construct a stable on-demand single-photon source
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-02502338
Contributor : Abes Star :  Contact
Submitted on : Monday, March 9, 2020 - 10:50:13 AM
Last modification on : Friday, October 23, 2020 - 4:52:01 PM
Long-term archiving on: : Wednesday, June 10, 2020 - 1:59:55 PM

File

TH2019BARONNIERJUSTINE.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02502338, version 1

Collections

Citation

Justine Baronnier. Encapsulation de nanocristaux II-VI dans une matrice semiconductrice de pérovskite hybride d’halogénure de plomb en vue de la création d’un dispositif de contrôle du clignotement. Matériaux. Université de Lyon, 2019. Français. ⟨NNT : 2019LYSE1297⟩. ⟨tel-02502338⟩

Share

Metrics

Record views

135

Files downloads

145