Gözde Tütüncüoglu

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Publications associées (50)

The growth and optical properties of III-V nanostructures grown by Molecular Beam Epitaxy

Gözde Tütüncüoglu

This thesis is dedicated to the growth and characterization of the optoelectronic properties of III-V semiconductor nanostructures namely nanowires and nanoscale membranes. III-V semiconductors possess promising intrinsic properties like direct band gap, h ...

EPFL2017

Conductive-probe atomic force microscopy as a characterization tool for nanowire-based solar cells

Anna Fontcuberta i Morral, Federico Matteini, Esther Alarcon Llado, Gözde Tütüncüoglu, Jelena Vukajlovic Plestina, Dmitry Mikulik, Maria Ricci, Natasa Vulic

The photonic properties of nanowires advocate for their utilization in next generation solar cells. Compared to traditional devices, the electric scheme is transformed from a single into an ensemble of pn junctions connected in parallel. This new configura ...

Elsevier Science Bv2017

Tuning growth direction of catalyst-free InAs(Sb) nanowires with indium droplets

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Martin George Friedl, Heidi Andrea Potts, Nicholas Paul Morgan

The need for indium droplets to initiate self-catalyzed growth of InAs nanowires has been highly debated in the last few years. Here, we report on the use of indium droplets to tune the growth direction of self-catalyzed InAs nanowires. The indium droplets ...

Institute of Physics2017

Engineering the Size Distributions of Ordered GaAs Nanowires on Silicon

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Maxime Lagier, Wonjong Kim, Martin George Friedl, Heidi Andrea Potts, Jelena Vukajlovic Plestina

Reproducible integration of III-V semiconductors on silicon can open new path toward CMOS compatible optoelectronics and novel design schemes in next generation solar cells. Ordered arrays of nanowires could accomplish this task, provided they are obtained ...

2017

Plasmonic Waveguide-Integrated Nanowire Laser

Anna Fontcuberta i Morral, Gözde Tütüncüoglu

Next-generation optoelectronic devices and photonic circuitry will have to incorporate on-chip compatible nanolaser sources. Semiconductor nanowire lasers have emerged as strong candidates for integrated systems with applications ranging from ultrasensitiv ...

American Chemical Society2017

Towards higher electron mobility in modulation doped GaAs/AlGaAs core shell nanowires

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Sonia Conesa Boj

Precise control over the electrical conductivity of semiconductor nanowires is a crucial prerequisite for implementation of these nanostructures into novel electronic and optoelectronic devices. Advances in our understanding of doping mechanisms in nanowir ...

Royal Society of Chemistry2017

Visual Understanding of Light Absorption and Waveguiding in Standing Nanowires with 3D Fluorescence Confocal Microscopy

Anna Fontcuberta i Morral, Federico Matteini, Esther Alarcon Llado, Gözde Tütüncüoglu

Semiconductor nanowires are promising building blocks for next generation photonics. Indirect proofs of large absorption cross sections have been reported in nanostructures with subwavelength diameters, an effect that is even more prominent in vertically s ...

Amer Chemical Soc2017

Optical properties of GaAsSb nanowire networks and GaAs nanomembranes

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Martin George Friedl, Heidi Andrea Potts, Jean-Baptiste Leran, Alessandro Surrente

Ieee2016

Quantum Heterostructures Based on GaAs Nanomembranes for Photonic Applications

Anna Fontcuberta i Morral, Federico Matteini, Gözde Tütüncüoglu, Martin George Friedl, Heidi Andrea Potts, Jean-Baptiste Leran

Ieee2016

Time-Resolved Nonlinear Coupling between Orthogonal Flexural Modes of a Pristine GaAs Nanowire

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Federico Matteini

We demonstrate nonlinear coupling between two orthogonal flexural modes of single as-grown GaAs nanowires. The resonant frequency of one mode can be shifted over many line widths by mechanically driving the other mode. We present time-domain measurements o ...

American Chemical Society2016

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