Skip to Main content Skip to Navigation
Theses

Développement de dispositifs hybrides à base de nanocristaux colloïdaux pour l'émission et la photodétection dans le visible et l'infrarouge

Abstract : This work is devoted to the development of Visible and Near-Infrared Light Emitting Diodes and photodetectors based on colloidal nanocrystals. First, we report a wet strategy for solution processed QDLEDs. Using spin coated and inkjet printed polymers, we have developed our first devices. Unfortunately, their efficiencies were quite low. To overcome these issues, we have developed an original QDs deposition method based on stamping and Langmuir processes, called Langmuir-Schaeffer Stamping (LSS). LSS is a very cost-efficient, dry, simple and homogeneous method to deposit nanocrystals on any substrate, even on small molecules deposited layers. Using LSS, we have developed efficient devices whose specifications are reported here. Direct injection and Förster mechanisms are studied. Furthermore we have fabricated infrared devices with PbS nanocrystals. Performances of our 109 Jones NIR photo-detectors and NIR-QDLEDs are presented in this thesis.
Document type :
Theses
Complete list of metadatas

Cited literature [16 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00845447
Contributor : Abes Star :  Contact
Submitted on : Wednesday, July 17, 2013 - 10:27:14 AM
Last modification on : Thursday, June 11, 2020 - 5:04:06 PM
Long-term archiving on: : Friday, October 18, 2013 - 4:22:43 AM

File

30846_BOURVON_2012_archivage.p...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00845447, version 1

Collections

STAR | CEA | DRT | LETI | CEA-GRE

Citation

Hélène Bourvon. Développement de dispositifs hybrides à base de nanocristaux colloïdaux pour l'émission et la photodétection dans le visible et l'infrarouge. Autre. Université de Grenoble, 2012. Français. ⟨NNT : 2012GRENI044⟩. ⟨tel-00845447⟩

Share

Metrics

Record views

524

Files downloads

853