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micro-crystals Single Photon InfraREd detectors

Total Cost €


EC-Contrib. €






 microSPIRE project word cloud

Explore the words cloud of the microSPIRE project. It provides you a very rough idea of what is the project "microSPIRE" about.

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Project "microSPIRE" data sheet

The following table provides information about the project.


Organization address
city: MILANO
postcode: 20133

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Italy [IT]
 Project website
 Total cost 3˙106˙381 €
 EC max contribution 3˙106˙381 € (100%)
 Programme 1. H2020-EU.1.2.1. (FET Open)
 Code Call H2020-FETOPEN-1-2016-2017
 Funding Scheme RIA
 Starting year 2017
 Duration (year-month-day) from 2017-11-01   to  2020-10-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    POLITECNICO DI MILANO IT (MILANO) coordinator 892˙232.00
2    UNIVERSITY OF GLASGOW UK (GLASGOW) participant 737˙271.00
6    MICRO PHOTON DEVICES S.R.L. IT (BOLZANO) participant 200˙625.00


 Project objective

µSPIRE aims at establishing a technological platform for homo- and hetero- structure based photonic and electronic devices using the self-assembling of epitaxial crystals on patterned Si substrates. Emerging micro-electronic and photonic devices strongly require the integration on Si of a variety of semiconducting materials such as Ge, GaAs, GaN and SiC, in order to add novel functionalities to the Si platform. µSPIRE pursues this goal employing a novel deposition approach, which we termed vertical hetero-epitaxy (VHE). VHE exploits the patterning of conventional Si substrates, in combination with epitaxial deposition, to attain the self-assembly of arrays of Ge and GaAs epitaxial micro-crystals elongated in the vertical direction, featuring structural and electronic properties unparalleled by “conventional” epitaxial growth. As a concrete demonstration of VHE potentialities, we will deliver a complete set of novel photon counting detectors: VHE micro-crystals will be used as the elementary microcells for single-photon detectors with performances far beyond those of current state-of-the-art devices, namely: - High photon detection efficiency (> 80%), thanks to the use of several µm thick micro-crystals; - High photon-number-resolving capability, thanks to the high density of micro-crystals; - High fill-factor (> 90%), thanks to the almost complete surface coverage attained by VHE; - Extended sensitivity from visible (350 – 900 nm) to NIR (800 – 1800 nm) and MIR (up to 10µm), thanks to the integration on Si of Ge and GaAs quantum wells. As a first action towards real applications, the Si and Ge devices will be tested on phantoms closely mimicking breast tissue in order to assess the improvement in signal level with respect to state of the art detectors, and investigate the potential extension to a presently unexplored, but appealing, long-wavelength spectral range (1500nm) of breast imaging and optical assessment of breast cancer risk.


List of deliverables.
Draft dissemination and exploitation plan Other 2020-02-13 16:22:45
Review meeting nr. 1 Documents, reports 2020-02-13 16:22:45
µSPIRE logo and webpage Websites, patent fillings, videos etc. 2020-02-13 16:22:45
Appointment of the Advisory Committee Other 2020-02-13 16:22:45
µSPIRE Data Management Plan Open Research Data Pilot 2020-02-13 16:22:45
Delivery of Si micro-crystals Demonstrators, pilots, prototypes 2020-02-13 16:22:45
Report on the characterization of Si micro-crystals Documents, reports 2020-02-13 16:22:45

Take a look to the deliverables list in detail:  detailed list of microSPIRE deliverables.


year authors and title journal last update
List of publications.
2019 P. Kükelhan, S. Firoozabadi, A. Beyer, L. Duschek, C. Fuchs, J.O. Oelerich, W. Stolz, K. Volz
Segregation at interfaces in (GaIn)As/Ga(AsSb)/(GaIn)As- quantum well heterostructures explored by atomic resolution STEM
published pages: 125180, ISSN: 0022-0248, DOI: 10.1016/j.jcrysgro.2019.125180
Journal of Crystal Growth 524 2020-02-13
2018 T. Guillet, A. Marty, C. Beigné, C. Vergnaud, M.-T. Dau, P. Noël, J. Frigerio, G. Isella, M. Jamet
Magnetotransport in Bi 2 Se 3 thin films epitaxially grown on Ge(111)
published pages: 115125, ISSN: 2158-3226, DOI: 10.1063/1.5048547
AIP Advances 8/11 2020-02-13
2019 Andrea Ballabio, Jacopo Frigerio, Saleh Firoozabadi, Daniel Chrastina, Andreas Beyer, Kerstin Volz, Giovanni Isella
Ge/SiGe parabolic quantum wells
published pages: 415105, ISSN: 0022-3727, DOI: 10.1088/1361-6463/ab2d34
Journal of Physics D: Applied Physics 52/41 2020-02-13
2019 L. Duschek, P. Kükelhan, A. Beyer, S. Firoozabadi, J.O. Oelerich, C. Fuchs, W. Stolz, A. Ballabio, G. Isella, K. Volz
Composition determination of semiconductor alloys towards atomic accuracy by HAADF-STEM
published pages: 84-96, ISSN: 0304-3991, DOI: 10.1016/j.ultramic.2019.02.009
Ultramicroscopy 200 2020-02-13
2019 E. Talamas Simola, A. De Iacovo, J. Frigerio, A. Ballabio, A. Fabbri, G. Isella, L. Colace
Voltage-tunable dual-band Ge/Si photodetector operating in VIS and NIR spectral range
published pages: 8529, ISSN: 1094-4087, DOI: 10.1364/oe.27.008529
Optics Express 27/6 2020-02-13
2019 Marco Albani, Roberto Bergamaschini, Marco Salvalaglio, Axel Voigt, Leo Miglio, Francesco Montalenti
Competition Between Kinetics and Thermodynamics During the Growth of Faceted Crystal by Phase Field Modeling
published pages: 1800518, ISSN: 0370-1972, DOI: 10.1002/pssb.201800518
physica status solidi (b) 2020-02-13
2019 Joan Manel Ramirez, Qiankun Liu, Vladyslav Vakarin, Xavier Le Roux, Jacopo Frigerio, Andrea Ballabio, Carlos Alonso-Ramos, Enrico Talamas Simola, Laurent Vivien, Giovanni Isella, Delphine Marris-Morini
Broadband integrated racetrack ring resonators for long-wave infrared photonics
published pages: 407, ISSN: 0146-9592, DOI: 10.1364/OL.44.000407
Optics Letters 44/2 2020-02-13
2018 Qiankun Liu, Joan Manel Ramirez, Vladyslav Vakarin, Xavier Le Roux, Jacopo Frigerio, Andrea Ballabio, Enrico Talamas Simola, Carlos Alonso-Ramos, Daniel Benedikovic, David Bouville, Laurent Vivien, Giovanni Isella, Delphine Marris-Morini
On-chip Bragg grating waveguides and Fabry-Perot resonators for long-wave infrared operation up to 84 µm
published pages: 34366, ISSN: 1094-4087, DOI: 10.1364/OE.26.034366
Optics Express 26/26 2020-02-13
2018 Marco Albani, Lea Ghisalberti, Roberto Bergamaschini, Martin Friedl, Marco Salvalaglio, Axel Voigt, Francesco Montalenti, Gözde Tütüncüoglu, Anna Fontcuberta i Morral, Leo Miglio
Growth kinetics and morphological analysis of homoepitaxial GaAs fins by theory and experiment
published pages: , ISSN: 2475-9953, DOI: 10.1103/PhysRevMaterials.2.093404
Physical Review Materials 2/9 2020-02-13
2018 Francesco Montalenti, Fabrizio Rovaris, Roberto Bergamaschini, Leo Miglio, Marco Salvalaglio, Giovanni Isella, Fabio Isa, Hans von Känel
Dislocation-Free SiGe/Si Heterostructures
published pages: 257, ISSN: 2073-4352, DOI: 10.3390/cryst8060257
Crystals 8/6 2020-02-13

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