Quantitative Electrochemical Control over Optical Gain in Quantum-Dot Solids

Autor: Gianluca Grimaldi, Arjan J. Houtepen, Wiel H. Evers, Solrun Gudjonsdottir, Baldur Brynjarsson, Ward van der Stam, Jaco J. Geuchies

Publikováno v: ACS Nano
ACS Nano (online), 15(1)

Solution-processed quantum dot (QD) lasers are one of the holy grails of nanoscience. They are not yet commercialized because the lasing threshold is too high: one needs >1 exciton per QD, which is difficult to achieve because of fast nonradiative Au

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aba8e01e67616a2f2ab49032abed3498
https://doi.org/10.1021/acsnano.0c07365

On the Stability of Permanent Electrochemical Doping of Quantum Dot, Fullerene, and Conductive Polymer Films in Frozen Electrolytes for Use in Semiconductor Devices

Autor: Christel Koopman, Wiel H. Evers, Bob Kwakkenbos, Solrun Gudjonsdottir, Ward van der Stam, Arjan J. Houtepen

Publikováno v: ACS Applied Nano Materials
ACS Applied Nano Materials, 2(8)

Semiconductor films that allow facile ion transport can be electronically doped via electrochemistry, where the amount of injected charge can be controlled by the potential applied. To apply electrochemical doping to the design of semiconductor devic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::772fa31a3e4ff5a20128b928e1d75760
http://europepmc.org/articles/PMC6711363

Electrochemical Modulation of the Photophysics of Surface-Localized Trap States in Core/Shell/(Shell) Quantum Dot Films

Autor: Mandy van Overeem, Solrun Gudjonsdottir, Gianluca Grimaldi, Baldur Brynjarsson, Arjan J. Houtepen, Ward van der Stam, Nicholas Kirkwood, Pieter T van Uffelen, Jaco J. Geuchies

Publikováno v: Chemistry of Materials
Chemistry of Materials, 31(20)

In this work, we systematically study the spectroelectrochemical response of CdSe quantum dots (QDs), CdSe/CdS core/shell QDs with varying CdS shell thicknesses, and CdSe/CdS/ZnS core/shell/shell QDs in order to elucidate the influence of localized s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eac29068f3b40c27c486a61bfd99efaf

Tuning and Probing the Distribution of Cu+ and Cu2+ Trap States Responsible for Broad-Band Photoluminescence in CuInS2 Nanocrystals

Autor: Jurgen Dijkema, Arjan J. Houtepen, Wiel H. Evers, Ward van der Stam, Max de Graaf, Jaco J. Geuchies, Nicholas Kirkwood, Solrun Gudjonsdottir, Alessandro Longo

Publikováno v: ACS Nano
ACS Nano, American Chemical Society, 2018, 12 (11), pp.11244-11253. ⟨10.1021/acsnano.8b05843⟩
'ACS Nano ', vol: 12, pages: 11244-11253 (2018)
ACS Nano (online), 12(11)

The processes that govern radiative recombination in ternary CuInS2 (CIS) nanocrystals (NCs) have been heavily debated, but recently, several research groups have come to the same conclusion that a photoexcited electron recombines with a localized ho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22ba228d55372ed5fa905d4fdd5b255e
https://hal.archives-ouvertes.fr/hal-02976430/file/ACS_Nano_12_11244.pdf

Enhancing the stability of the electron density in electrochemically doped ZnO quantum dots

Autor: Solrun Gudjonsdottir, Arjan J. Houtepen, Christel Koopman

Publikováno v: The Journal of Chemical Physics
Journal of Chemical Physics, 151(14)

Electronic doping of semiconductor nanomaterials can be efficiently achieved using electrochemistry. However, the injected charge carriers are usually not very stable. After disconnecting the cell that is used for electrochemical doping, the carrier

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aab8c281751acd464ca189dc9fdf0043