Silicon Nanoelectronics Photonics and Structures (SiNaPS)

The SiNaPS laboratory investigates the new physical phenomena appearing when silicon is down-sized to the nanometer scale. Our aim is to unveil new devices based on the understanding of those phenomena and to explore their future applications. Therefore, SiNaPS research span from material growth and nanotechnology to characterization of nanostructure electronic/structural/optical properties, up to prototype nanodevices fabrication.

Our effort is tightly focused on two fields : the physics of silicon and germanium based nanostructures (i.e. nanowires, quantum boxes and nanostructured GeMn alloys) and the optics of wavelength-scale optical microstructures namely photonic crystals and microcavities.

 

 

 

Current research axes

 

Among the main achievements are, in the field of group IV nanostructures, the growth of sub-5 nm diameter crystalline Si and Ge nanowires, the growth of nanostructured (branched) silicon nanowires, the nanofabrication of porous alumina templates, the growth of nanostructured GeMn alloys containing a high Tc (>400 K) ferromagnetic phase. At the frontier of electronics and optics, we studied the mechanisms of carrier recombination and light emission in silicon-on-insulator (SOI) thin films where we demonstrated the Fermi-Dirac condensation of excitons into a metallic liquid. In the field of nanophotonics, we evidenced the potential of SOI microcavities and photonic crystal structures to control the radiation diagram of photons. We also demonstrated strong (2 orders of magnitude) light extraction enhancement by low group velocity SOI photonic crystals. Finally, we applied our effort to the quest for ultra strong light confinement in high Q nanocavities (Q > 60.000 for V = 0.6(l/n)3 achieved) and to the fabrication of rare-earth (Er) functionalized toroidal whispery gallery mode microresonators for future on chip light generation.

In the reporting period, the laboratory as also launched the virtual laboratory SiNOPTIQ with the Institut Carnot de Bourgogne to pursue research in the field of near-field nanophotonics. At the same time we started, in association with the Laboratoire des Technologies de la Microélectronique, the NanoS platform dedicated to the synthesis of nanostructures and to their assembly into nanodevices.

 

Research tools, methods

 

The laboratory operates one MBE and one CVD chamber for the epitaxy of group-IV nanostructures, plus a vacuum e-beam deposition chamber dedicated to the deposition of oxide and metal films. The structural characterization is based on a low temperature STM with in-situ growth capabilities, SEM and TEM equipments located on the Nanocharacterization Platform (PFNC) within Minatec, as well as X-Ray diffraction techniques at the nearby located European Synchrotron Radiation Facility. For nanofabrication, the laboratory makes an intensive use of the Plateforme Technologique Amont (PTA) and also runs close collaborations with CEA and CNRS teams operating at Léti facilities. Along the years, the laboratory has intensively developed spectroscopic characterization tools such as : life time measurements and low temperature spectroscopy, spatially-resolved spectroscopy at the micron scale, wave-guided spectroscopy and also optical near-field microscopy.

 

 

                                

 

Publications

2016

2015

2014

2013

 

People

The laboratory is now a team of 25 people located on the Minatec Center.

 

permanent staff

postdocs

graduate students

André Barski

Denis Buttard

Vincent Calvo

Thomas Charvolin

Eric Delamadeleine

Pascal Gentile

Emmanuel Hadji

Jean-Baptiste Jager

Nicolas Pauc

Emmanuel Picard

Alban Gassenq

Dimitri Tainoff

 

Mustapha Boukhari

Olivier Marconot

Shashank Mathur

Dhruv Singhal

Manon Tardif

 

 

More from SiNaPS team ...

 

                                                  

 

Contact

Dr. Emmanuel HADJI

+33 (0)4.38.78.38.08

 

Last update : 02/20 2017 (152)

Themes
 
More ...
Highlights
06-01-2017
Contact : Manon Tardif
We demonstrate the optical trapping of living objects with an integrated SOI microcavity and the discrimination of three different types of bacteria based on the analysis of the trapped bacterium interactions with the electromagnetic field of the cavity. Bacteria are an important subject of ... More »
06-11-2015
Contact : Emmanuel PICARD
The distribution of the electromagnetic field is an essential input for the design and development of new photonic structures. The classical near-field microscopy tools (SNOM, PSTM ..) allow to obtain this information experimentally. This type of scanning probe microscopy is mainly based on a point ... More »
04-11-2015
Researchers from CNRS, CEA, Paris-Sud University and Joseph Fourier University have developed a new process for producing light emitting diodes (LED) flexible. These researchers have produced the first green nanowires-based flexible LED in the world and the first multilayer system combining blue ... More »
29-07-2015
Contact : Vincent Calvo
Light sources fully integrated into microelectronics technology are the missing stones of silicon photonics. Silicon, as well as germanium, are not well suited for light emission in their natural form, due to the indirect nature of their bandgap. In the case of Ge, this limitation can potentially ... More »
25-03-2014
Georgiana Irina Groza, a post-doc fellow currently working at the PTA in the frame of a  large collaboration involving CEA-IRFU/CNRS-LPN/CNRS-IAS, and former PhD at the Nanostructure and Magnetism lab, has been awarded the NanoART monthly prize in February 2014.   NanoART is a Nano ... More »
28-02-2014
Contact : Nicoals Pauc
Kevin Guilloy, a first year PhD student at SiNaPS lab, has been awarded the NanoART monthly prize in January 2014.   NanoART is a Nano Imagery contest sponsored by nRai®, and organized in Grenoble by the Nanoscience Foundation.   Website for submission: ... More »
29-01-2014
Contact : Denis Buttard
Ludovic Dupré, who defended his PhD thesis in Octobre 2013, after his doctoral stay at SiNaPS lab, was first awarded at the monthly contest in March 2013. He is now awarded the second prize at the annual contest, amounted to US$ 3000, for the micrograph reproduced here.   NanoART ... More »
14-01-2014
Contact : Gerard Bidan
  Whereas batteries provide energy over several hours, supercapacitors deliver energy peaks in seconds, and provide strong power. Balancing energy and power under constrained volumes is the key challenge for the growth of many industrial applications including the electric vehicle where ... More »
08-01-2014
Contact : Nicolas Pauc, Arnaud Morin (Liten), Samuele Galbiati (Liten)
Paste a stack of platinum nanotubes on proton exchange membrane of a fuel cell is the feat achieved through the joint efforts of researchers from INAC and LITEN. A preliminary assessment including tests under operating conditions of the battery reveals the potential of this new ... More »
18-09-2012
Contact : Emmanuel Picard
Today microelectronics techniques allow the combination of optics and microfluidics on the same chip to handle colloidal objects. The SiNaPS laboratory, in collaboration with the Near Field Optics Group of University of Burgundy and the Microelectronics Technologies Laboratory in Grenoble (LTM), ... More »
HAL publications

SINAPS last publications


All SINAPS publications in HAL-CEA

PhD

Dernière mise à jour : 22-08-2017

/PHELIQS/SINAPS

 

New alloys of the GeSn family: a direct band gap in group IV semiconductors

SL-DRF-17-0162

Research field : Solid state physics, surfaces and interfaces
Location :

Photonique, Electronique et Ingénierie Quantiques (PHELIQS)

Laboratoire Silicium Nanoélectronique Photonique et Structures (SINAPS)

Grenoble

Contact :

Nicolas PAUC

Vincent CALVO

Starting date : 01-10-2017

Contact :

Nicolas PAUC

CEA - DRF/INAC/PHELIQS/SINAPS

04 38 78 18 04

Thesis supervisor :

Vincent CALVO

CEA - DRF/INAC/PHELIQS/SINAPS

0438781809

This project aims at realizing a new type of semiconducting laser source based on germanium (Ge) and tin (Sn), which was recently demonstrated in 2015 [1] and 2016 [2]. Ge and Sn are compatible with microelectronic processes, making GeSn laser a breakthrought for silicon photonics.

Within this PhD, we propose to elaborate thin films of Ge1-xSnx alloys on Si substrates in order to get at short term the laser effect under optical injection. A strong effort will be devoted to the synthesis of heterostructures which offer carrier and photon confinement in the active medium, with the goal to lower the laser threshold. To reach this goal, we will developp in collaboraion with CEA-LETI the synthesis of ternary Ge1-x-ySnxSiy alloys, envisionned as barrier materials. The fundamental properties of the as synthesized materials such as the band gap energy, the confinement energy offered by the heterostructure, the internal quantum yield along with the density of surface recombination centers will be studied at the laboratory, prior to fabricating optical resonators in clean rooms.



[1] S. Wirths et al, Nature Photonics, 9, 88–92 (2015)

[2] D. Stange et al, ACS Photonics, 3, 1279-1285 (2016)

• Solid state physics, surfaces and interfaces

Stages
Gallery
Silicon Photonics
Silicon Photonics
Georgiana Irina Groza awarded February 2014 NanoART prize
- Growth and Characterization of Silicon Nanowires by Catalyst Assisted LPCVD
Si and Ge based nanowires : growth and optical properties
Si and Ge based nanowires : growth and optical properties
Si and Ge based nanowires : growth and optical properties
Si and Ge based nanowires : growth and optical properties
Si and Ge based nanowires : growth and optical properties
Photonic confinement and interactions with a near-field probe
Photonic confinement and interactions with a near-field probe
Photonic confinement and interactions with a near-field probe
Photonic confinement and interactions with a near-field probe
Photonic confinement and interactions with a near-field probe
Nanofils à base de Si et Ge : croissance et propriétés optiques
Nanofils à base de Si et Ge : croissance et propriétés optiques
Nanofils à base de Si et Ge : croissance et propriétés optiques
Nanofils à base de Si et Ge : croissance et propriétés optiques
Nanofils à base de Si et Ge : croissance et propriétés optiques
Spontaneous emission control in Si-based optical microcavities and photonic crystals
Spontaneous emission control in Si-based optical microcavities and photonic crystals
Spontaneous emission control in Si-based optical microcavities and photonic crystals
Silicon Nanoelectronics Photonics and Structures (SiNaPS)
Silicon Nanoelectronics Photonics and Structures (SiNaPS)
Silicon Nanoelectronics Photonics and Structures (SiNaPS)
Silicon Nanoelectronics Photonics and Structures (SiNaPS)
New tools for photonics optical characterization
- Epitaxy of Silicon and Germanium nanostructures on ultrathin oxides
- Epitaxy of Silicon and Germanium nanostructures on ultrathin oxides
- Epitaxy of Silicon and Germanium nanostructures on ultrathin oxides
High Curie temperature ferromagnetism  in self-organized (Ge,Mn) nanocolumns
High Curie temperature ferromagnetism  in self-organized (Ge,Mn) nanocolumns
High Curie temperature ferromagnetism  in self-organized (Ge,Mn) nanocolumns
Light emission and propagation in 1D and 2D Si photonic crystals
Light emission and propagation in 1D and 2D Si photonic crystals
Light emission and propagation in 1D and 2D Si photonic crystals
Light emission and propagation in 1D and 2D Si photonic crystals
Resonant cavity infrared emitters “EMIR” for gas analysis
Resonant cavity infrared emitters “EMIR” for gas analysis
- Surface self-organization with buried dislocation networks
- Surface self-organization with buried dislocation networks
- Surface self-organization with buried dislocation networks
- Surface self-organization with buried dislocation networks
How to reconcile energy and power for electrochemical storage: the pseudocapacitors
How to reconcile energy and power for electrochemical storage: the pseudocapacitors
Ludovic Dupré awarded second prize at 2013 NanoART contest
Kevin Guilloy awarded January 2014 NanoART prize
Trapping and manipulation of colloidal particles using optical nanocavities on a chip
Tensile strained germanium nanowires: towards a direct bandgap!
Flexible LED nanowires: a new breakthrough towards folding screens
Optofluidics marble game for sub-wavelength imaging applications
Platinum nanotube in fuel cells
Nanoporous alumina template for the growth of silicon based nanowires : towards thermoelectric applications
- Silicon based nanowires for super capacitor applications
- Silicon based nanowires for super capacitor applications
Nanostructured membranes for fuel cell applications
Nanostructured membranes for fuel cell applications
Nanostructured membranes for fuel cell applications
Characterization of nanostructures using synchrotron facilities
Characterization of nanostructures using synchrotron facilities
Characterization of nanostructures using synchrotron facilities
Characterization of nanostructures using synchrotron facilities
- Ge Mn based nanostructured thin films : phonon glass - electron crystal material for thermoelectricity applications
- Ge Mn based nanostructured thin films : phonon glass - electron crystal material for thermoelectricity applications
Semiconductor nanostructure growth
- Silicon and germanium based nanowire growth by chemical vapor deposition
- Silicon and germanium based nanowire growth by chemical vapor deposition
Single-cell bacterium identification with a SOI optical microcavity

 

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