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Showing 1 to 12 of 13 entries
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Critical Au Concentration for the Stabilization of Au-Cu Nanoparticles on Rutile against Dissociation under Oxygen.

The journal of physical chemistry letters

Wilson A, Bernard R, Borensztein Y, Croset B, Cruguel H, Vlad A, Coati A, Garreau Y, Prévot G.
PMID: 26266501
J Phys Chem Lett. 2015 Jun 04;6(11):2050-5. doi: 10.1021/acs.jpclett.5b00791. Epub 2015 May 19.

Controlling aging of catalysts is of crucial importance to preserve their properties, in particular for bimetallic nanoparticles (NPs) where reaction can modify the composition. Herein, we have studied the stability upon oxygen exposure of gold-copper NPs supported on rutile....

Wave-Function Engineering in HgSe/HgTe Colloidal Heterostructures To Enhance Mid-infrared Photoconductive Properties.

Nano letters

Goubet N, Livache C, Martinez B, Xu XZ, Ithurria S, Royer S, Cruguel H, Patriarche G, Ouerghi A, Silly M, Dubertret B, Lhuillier E.
PMID: 29812951
Nano Lett. 2018 Jul 11;18(7):4590-4597. doi: 10.1021/acs.nanolett.8b01861. Epub 2018 Jun 07.

The use of intraband transition is an interesting alternative path for the design of optically active complex colloidal materials in the mid-infrared range. However, so far, the performance obtained for photodetection based on intraband transition remains much smaller than...

Gas-induced selective re-orientation of Au-Cu nanoparticles on TiO.

Nanoscale

Wilson A, Bailly A, Bernard R, Borensztein Y, Coati A, Croset B, Cruguel H, Naitabdi A, Silly M, Saint-Lager MC, Vlad A, Witkowski N, Garreau Y, Prevot G.
PMID: 30566167
Nanoscale. 2019 Jan 03;11(2):752-761. doi: 10.1039/c8nr07645f.

Au-Cu bimetallic nanoparticles (NPs) grown on TiO2(110) have been followed in situ using grazing incidence X-ray diffraction and X-ray photoemission spectroscopy from their synthesis to their exposure to a CO/O2 mixture at low pressure (P < 10-5 mbar) and...

Crystalline Molybdenum Oxide Thin-Films for Application as Interfacial Layers in Optoelectronic Devices.

ACS applied materials & interfaces

F Cauduro AL, Dos Reis R, Chen G, Schmid AK, Méthivier C, Rubahn HG, Bossard-Giannesini L, Cruguel H, Witkowski N, Madsen M.
PMID: 28165215
ACS Appl Mater Interfaces. 2017 Mar 01;9(8):7717-7724. doi: 10.1021/acsami.6b14228. Epub 2017 Feb 13.

The ability to control the interfacial properties in metal-oxide thin films through surface defect engineering is vital to fine-tune their optoelectronic properties and thus their integration in novel optoelectronic devices. This is exemplified in photovoltaic devices based on organic,...

Bias Tunable Spectral Response of Nanocrystal Array in a Plasmonic Cavity.

Nano letters

Dang TH, Vasanelli A, Todorov Y, Sirtori C, Prado Y, Chu A, Gréboval C, Khalili A, Cruguel H, Delerue C, Vincent G, Lhuillier E.
PMID: 34339191
Nano Lett. 2021 Aug 11;21(15):6671-6677. doi: 10.1021/acs.nanolett.1c02193. Epub 2021 Aug 02.

Nanocrystals (NCs) have gained considerable attention for their broadly tunable absorption from the UV to the THz range. Nevertheless, their optical features suffer from a lack of tunability once integrated into optoelectronic devices. Here, we show that bias tunable...

Stoichiometry-dependent chemical activity of supported MgO(100) films.

The journal of physical chemistry. A

Cabailh G, Lazzari R, Cruguel H, Jupille J, Savio L, Smerieri M, Orzelli A, Vattuone L, Rocca M.
PMID: 21526863
J Phys Chem A. 2011 Jun 30;115(25):7161-8. doi: 10.1021/jp200069u. Epub 2011 Apr 29.

Here, we show that the stoichiometry and, consequently, the chemical activity toward hydroxylation of MgO(100) films grown by reactive deposition on Ag(100) strongly depend on the O(2) partial pressure during film growth. Oxygen-deficient films undergo dramatic relative oxygen uptake...

Charge Dynamics and Optolectronic Properties in HgTe Colloidal Quantum Wells.

Nano letters

Livache C, Izquierdo E, Martinez B, Dufour M, Pierucci D, Keuleyan S, Cruguel H, Becerra L, Fave JL, Aubin H, Ouerghi A, Lacaze E, Silly MG, Dubertret B, Ithurria S, Lhuillier E.
PMID: 28598629
Nano Lett. 2017 Jul 12;17(7):4067-4074. doi: 10.1021/acs.nanolett.7b00683. Epub 2017 Jun 15.

We investigate the electronic and transport properties of HgTe 2D colloidal quantum wells. We demonstrate that the material can be made p- or n-type depending on the capping ligands. In addition to the control of majority carrier type, the...

HgTe Nanocrystals for SWIR Detection and Their Integration up to the Focal Plane Array.

ACS applied materials & interfaces

Chu A, Martinez B, Ferré S, Noguier V, Gréboval C, Livache C, Qu J, Prado Y, Casaretto N, Goubet N, Cruguel H, Dudy L, Silly MG, Vincent G, Lhuillier E.
PMID: 31426628
ACS Appl Mater Interfaces. 2019 Sep 11;11(36):33116-33123. doi: 10.1021/acsami.9b09954. Epub 2019 Aug 30.

Infrared applications remain too often a niche market due to their prohibitive cost. Nanocrystals offer an interesting alternative to reach cost disruption especially in the short-wave infrared (SWIR, λ < 1.7 μm) where material maturity is now high. Two...

HgSe Self-Doped Nanocrystals as a Platform to Investigate the Effects of Vanishing Confinement.

ACS applied materials & interfaces

Martinez B, Livache C, Notemgnou Mouafo LD, Goubet N, Keuleyan S, Cruguel H, Ithurria S, Aubin H, Ouerghi A, Doudin B, Lacaze E, Dubertret B, Silly MG, Lobo RPSM, Dayen JF, Lhuillier E.
PMID: 28956432
ACS Appl Mater Interfaces. 2017 Oct 18;9(41):36173-36180. doi: 10.1021/acsami.7b10665. Epub 2017 Oct 06.

Self-doped colloidal quantum dots (CQDs) attract a strong interest for the design of a new generation of low-cost infrared (IR) optoelectronic devices because of their tunable intraband absorption feature in the mid-IR region. However, very little remains known about...

RFLP markers linked to scald (Rhynchosporium secalis) resistance gene Rh2 in barley.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

Schweizer GF, Baumer M, Daniel G, Rugel H, Röder MS.
PMID: 24173045
Theor Appl Genet. 1995 Jun;90(7):920-4. doi: 10.1007/BF00222904.

Rhynchosporium secalis is the causal organism of barley scald disease. A number of resistance genes against the fungus are well known; one of them, the single dominant Rh2 resistance gene, has been mapped on the linkage map of barley...

Deciphering Electron Interplay at the Fullerene/Sputtered TiO.

ACS applied materials & interfaces

Amelot D, Ahmadpour M, Ros Q, Cruguel H, Casaretto N, Cossaro A, Floreano L, Madsen M, Witkowski N.
PMID: 33871979
ACS Appl Mater Interfaces. 2021 Apr 28;13(16):19460-19466. doi: 10.1021/acsami.1c01966. Epub 2021 Apr 19.

Organic photovoltaics (OPVs) technology now offers power conversion efficiency (PCE) of over 18% and is one of the main emerging photovoltaic technologies. In such devices, titanium dioxide (TiO

Impact of dimensionality and confinement on the electronic properties of mercury chalcogenide nanocrystals.

Nanoscale

Gréboval C, Izquierdo E, Livache C, Martinez B, Dufour M, Goubet N, Moghaddam N, Qu J, Chu A, Ramade J, Aubin H, Cruguel H, Silly M, Lhuillier E, Ithurria S.
PMID: 30758021
Nanoscale. 2019 Feb 28;11(9):3905-3915. doi: 10.1039/c8nr09644a.

We demonstrate the growth of 2D nanoplatelets (NPLs) made of a HgTe/CdS heterostructure, with an optical absorption reaching the shortwave infrared range. The material is an interesting platform to investigate the effect of dimensionality (0D vs. 2D) and confinement...

Showing 1 to 12 of 13 entries