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Zinc Oxide Nanowires Deposited on Polymeric Hotplates for Low-power Gas Sensors

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Synthesis of heterogeneous catalysts with metal oxide overcoat for renewable catalysis applications

Yuan-Peng Du

Metal oxide deposition is an emerging synthetic technique for designing heterogeneous catalysts. Depositing a nanoscale overcoat of metal oxide on heterogeneous catalysts can modify their structural and chemical characteristics. Many deposition approaches, ...

EPFL2020

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Zinc phosphide (Zn3P2) nanowires constitute prospective building blocks for next generation solar cellsdue to the combination of suitable optoelectronic properties and an abundance of the constitutingelements in the Earth’s crust. The generation of periodi ...

2020

Here, we report a facile irradiation-assisted route to fabricate sub-10 nm Ag nanowires fromoxide supports using a TEM. The obtained Ag nanowires show a tunable length/diameter aspect ratio with a minimum diameter of about 9.5 nm. Moreover, the nucleation ...

ROYAL SOC CHEMISTRY2020

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A novel pattern strategy of a nanomaterial network that can self‐assemble onto prepatterned soft substrate to realize ultra‐transparent electronics is presented. The approach detailed is based on the combination of nanomaterials' self‐assembly at the water ...

2019

Shape and size control of colloidal CdSe nanocrystals in the presence of carboxylate and alkylamine ligands

Xiaopeng Huang

In this thesis, we focus on investigating the shape and size evolution of colloidal CdSe nanomaterials in the presence of carboxylate and alkylamine surface ligands. By elaborating the combination of carboxylates and alkylamines with different hydrocarbon ...

EPFL2019

This thesis is dedicated to the engineering of the emission energy of quantum dots embedded in core-shell GaAs-AlGaAs nanowires. The goal is to redshift the quantum-dot emission energy in resonance with a gas of Rb atoms. Segregation processes on the nanow ...

EPFL2019

Novel manufacturing methods for optical antennas

Valentin Flauraud

The resonant excitation of free electrons in metallic nanostructures enables extreme near field intensities along with a deep sub-wavelength localization of the electromagnetic energy. This has been exploited to enhance light-matter interaction down to the ...

EPFL2017

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Controlling the growth direction of nanowires is of strategic importance both for applications where nanowire arrays are contacted in parallel and for the formation of more complex nanowire networks. We report on the existence of tilted InAs nanowires on ( ...

American Chemical Society2017

Growth of GaAs nanowires on Si (111) for photovoltaic applications

Federico Matteini

The goal of this thesis is to master the synthesis of GaAs nanowires ensembles on Si for their application in solar cells. Semiconductor nanowires present promising characteristics for photovoltaic applications: they benefit from their longitudinal high as ...

EPFL2016

Here we show that sub-micron coatings of zeolitic imidazolate frameworks (ZIFs) and even ZIF-ZIF bilayers can be grown directly on polymers of intrinsic microporosity from zinc oxide (ZnO) nanocrystal precursor films, yielding a new class of all-microporou ...

Amer Chemical Soc2015