Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes

Patterning, stability, and dispersion of the semiconductor quantum dots (scQDs) are three issues strictly interconnected for successful device manufacturing. Recently, several authors adopted direct optical patterning (DOP) as a step forward in photolithography to position the scQDs in a selected ar...

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Published in:Nanomaterials
Main Author: Francesco Antolini
Format: Article
Language:English
Published: MDPI AG 2023-07-01
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Online Access:https://www.mdpi.com/2079-4991/13/13/2008
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author Francesco Antolini
author_facet Francesco Antolini
author_sort Francesco Antolini
collection DOAJ
container_title Nanomaterials
description Patterning, stability, and dispersion of the semiconductor quantum dots (scQDs) are three issues strictly interconnected for successful device manufacturing. Recently, several authors adopted direct optical patterning (DOP) as a step forward in photolithography to position the scQDs in a selected area. However, the chemistry behind the stability, dispersion, and patterning has to be carefully integrated to obtain a functional commercial device. This review describes different chemical strategies suitable to stabilize the scQDs both at a single level and as an ensemble. Special attention is paid to those strategies compatible with direct optical patterning (DOP). With the same purpose, the scQDs’ dispersion in a matrix was described in terms of the scQD surface ligands’ interactions with the matrix itself. The chemical processes behind the DOP are illustrated and discussed for five different approaches, all together considering stability, dispersion, and the patterning itself of the scQDs.
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spelling doaj-art-ba3cd5e0976a4bc3b8cdcc1a81256d5f2025-08-19T21:59:24ZengMDPI AGNanomaterials2079-49912023-07-011313200810.3390/nano13132008Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical ProcessesFrancesco Antolini0Fusion and Technologies for Nuclear Safety and Security Department, Physical Technology for Safety and Health Division, ENEA C.R. Frascati, Via E. Fermi 45, 00044 Frascati, ItalyPatterning, stability, and dispersion of the semiconductor quantum dots (scQDs) are three issues strictly interconnected for successful device manufacturing. Recently, several authors adopted direct optical patterning (DOP) as a step forward in photolithography to position the scQDs in a selected area. However, the chemistry behind the stability, dispersion, and patterning has to be carefully integrated to obtain a functional commercial device. This review describes different chemical strategies suitable to stabilize the scQDs both at a single level and as an ensemble. Special attention is paid to those strategies compatible with direct optical patterning (DOP). With the same purpose, the scQDs’ dispersion in a matrix was described in terms of the scQD surface ligands’ interactions with the matrix itself. The chemical processes behind the DOP are illustrated and discussed for five different approaches, all together considering stability, dispersion, and the patterning itself of the scQDs.https://www.mdpi.com/2079-4991/13/13/2008semiconductor quantum dotspolymersligandssiloxanesthiol-enequantum dots stability
spellingShingle Francesco Antolini
Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes
semiconductor quantum dots
polymers
ligands
siloxanes
thiol-ene
quantum dots stability
title Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes
title_full Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes
title_fullStr Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes
title_full_unstemmed Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes
title_short Direct Optical Patterning of Quantum Dots: One Strategy, Different Chemical Processes
title_sort direct optical patterning of quantum dots one strategy different chemical processes
topic semiconductor quantum dots
polymers
ligands
siloxanes
thiol-ene
quantum dots stability
url https://www.mdpi.com/2079-4991/13/13/2008
work_keys_str_mv AT francescoantolini directopticalpatterningofquantumdotsonestrategydifferentchemicalprocesses