Si1-xCx / SiC multi-layers after annealing at 1000 °C

The left-hand image shows a silicon carbide nanocrystal and the right-hand image presents a silicon nanocrystal, together with the indices for grid planes.

Tandem Solar Cells on Crystalline Silicon

R&D Services

Our R&D services comprise:

Si-based tandem solar cells

To make better use of the whole solar spectrum (reduction of thermalisation losses), we are also developing silicon-based tandem solar cells. In addition to process adaptation for the Si base cell and the development of tunnel contacts, our research is concentrating primarily on new silicon nanocrystalline materials with adjustable band gaps and III-V-based absorber materials. The two sub-cells are combined either by direct stack growth on the Si base cell or by wafer-bonding.

Selected Research Projects

 

MehrSi

High-efficiency III-V Multi-Junction Solar Cells on Silicon

 

HISTORIC

High Efficiency GaInP/GaAs Tandem Wafer Bonded Solar Cell on Silicon

 

PersiST

Perovskite-silicon tandem solar cells

 

Current publications -Tandem Solar Cells on Crystalline Silicon:

YearTitle/AuthorDocument Type
2017Optical analysis of a III-V-nanowire-array-on-Si dual junction solar cell
Chen, Y.; Höhn, O.; Tucher, N.; Pistol, M.-E.; Anttu, N.
Journal Article
2016Formation of silicon nanocrystals in silicon carbide using flash lamp annealing
Weiss, C.; Schnabel, M.; Prucnal, S.; Hofmann, J.; Reichert, A.; Fehrenbach, T.; Skorupa, W.; Janz, S.
Journal Article
2016Monolithic Si nanocrystal/crystalline Si tandem cells involving Si nanocrystals in SiC
Schnabel, M.; Canino, M.; Schillinger, K.; Löper, P.; Summonte, C.; Wilshaw, P.R.; Janz, S.
Journal Article
2016Silicon nanocrystals embedded in silicon carbide as a wide-band gap photovoltaic material
Lopez-Vidrier, J.; Löper, P.; Schnabel, M.; Hernandez, S.; Canino, M.; Summonte, C.; Janz, S.; Garrido, B.
Journal Article
2015Absorption and emission of silicon nanocrystals embedded in SiC: Eliminating Fabry-Pérot interference
Schnabel, M.; Summonte, C.; Dyakov, S.; Lopez-Conesa, L.; Löper, P.; Janz, S.; Wilshaw, P.R.; Canino, M.
Journal Article
2015Charge transport in nanocrystalline SiC with and without embedded Si nanocrystals
Schnabel, M.; Canino, M.; Kühnold-Pospischil, S.; Lopez-Vidrier, J.; Klugermann, T.; Weiss, C.; Lopez-Conesa, L.; Zschintzsch-Dias, M.; Summonte, C.; Löper, P.; Janz, S.; Wilshaw, P.R.
Journal Article
2015Phosporus diffusion in nanocrystalline 3C-SiC
Schnabel, M.; Bakr Siddique, A.; Janz, S.; Wilshaw, P.R.
Journal Article
2015Rear side sphere gratings for improved light trapping in crystalline silicon single junction and silicon-based tandem solar cells
Eisenlohr, J.; Lee, B.G.; Benick, J.; Feldmann, F.; Drießen, M.; Milenkovic, N.; Bläsi, B.; Goldschmidt, J.C.; Hermle, M.
Journal Article
2015Self-assembled silicon nanocrystal arrays for photovoltaics
Schnabel, M.; Weiss, C.; Löper, P.; Wilshaw, P.R.; Janz, S.
Journal Article
2015Structural parameters effect on the electrical and electroluminescence properties of silicon nanocrystals/SiO2 superlattices
Lopez-Vidrier, J.; Berencen, Y.; Hernandez, S.; Mundet, B.; Gutsch, S.; Laube, J.; Hiller, D.; Löper, P.; Schnabel, M.; Janz, S.; Zacharias, M.; Garrido, B.
Journal Article
2014Absence of quantum confinement effects in the photoluminescence of Si3N4-embedded Si nanocrystals
Hiller, D.; Zelenina, A.; Gutsch, S.; Dyakov, S.A.; Lopez-Conesa, L.; Lopez-Vidrier, J.; Estrade, S.; Peiro, F.; Garrido, B.; Valenta, J.; Korinek, M.; Trojanek, F.; Maly, P.; Schnabel, M.; Weiss, C.; Janz, S.; Zacharias, M.
Journal Article
2014Boron diffusion in nanocrystalline 3C-SiC
Schnabel, M.; Weiss, C.; Canino, M.; Rachow, T.; Löper, P.; Summonte, C.; Mirabella, S.; Janz, S.; Wilshaw, P.R.
Journal Article
2014Electrical and electroluminescence properties of silicon nanocystals/SiO2 superlattices
López-Vidrier, J.; Berencén, Y.; Mundet, B.; Hernández, S.; Gutsch, S.; Hiller, D.; Löper, P.; Schnabel, M.; Janz, S.; Zacharias, M.; Garrido, B.
Conference Paper
2014Electrical and optical characterisation of silicon nancrystals embedded in SiC
Schnabel, M.; Löper, P.; Canino, M.; Dyakov, S.A.; Allegrezza, M.; Bellettato, M.; Lopez-Vidrier, J.; Hernandez, S.; Summonte, C.; Garrido, B.; Wilshaw, P.R.; Janz, S.
Conference Paper
2014High-bandgap silicon nanocrystal solar cells: Device fabrication, characterization, and modeling
Löper, P.; Canino, M.; Schnabel, M.; Summonte, C.; Janz, S.; Zacharias, M.
Book Article
2014Nanocrystalline SiC formed by annealing of a-SiC:H on Si substrates: A study of dopant interdiffusion
Schnabel, M.; Weiss, C.; Löper, P.; Canino, M.; Summonte, C.; Wilshaw, P.R.; Janz, S.
Journal Article
2014Silicon nanocrystals in carbide matrix
Summonte, C.; Allegrezza, M.; Bellettato, M.; Liscio, F.; Canino, M.; Desalvo, A.; Lopez-Vidrier, J.; Hernandez, S.; Lopez-Conesa, L.; Estrade, S.; Peiro, F.; Garrido, B.; Löper, P.; Schnabel, M.; Janz, S.; Guerra, R.; Ossicini, S.
Journal Article
2014Using the full solar spectrum with upconverter devices
Fischer, S.; Goldschmidt, J.C.
Journal Article
2013Aberration-corrected transmission electron microscopy analyses of GaAs/Si interfaces in wafer-bonded multi-junction solar cells
Häussler, D.; Houben, L.; Essig, S.; Kurttepeli, M.; Dimroth, F.; Dunin-Borkowski, R.E.; Jäger, W.
Journal Article
2013Annealing of nm-thin Si1-xCx/SiC multilayers
Künle, M.; Janz, S.; Nickel, K.G.; Heidt, A.; Luysberg, M.; Eibl, O.
Journal Article
2013Charge transport and electroluminescence of silicon nanocrystals/SiO2 superlattices
Lopez-Vidrier, J.; Berencén, Y.; Hernández, S.; Blázquez, O.; Gutsch, S.; Laube, J.; Hiller, D.; Löper, P.; Schnabel, M.; Janz, S.; Zacharias, M.; Garrido, B.
Journal Article
2013Fabrication of GaInP/GaAs//Si solar cells by surface activated direct wafer bonding
Derendorf, K.; Essig, S.; Oliva, E.; Klinger, V.; Roesener, T.; Philipps, S.P.; Benick, J.; Hermle, M.; Schachtner, M.; Siefer, G.; Jäger, W.; Dimroth, F.
Journal Article
2013Fast atom beam activated wafer bonds between n-Si and n-GaAs with low resistance
Essig, S.; Dimroth, F.
Journal Article
2013Fast atom beam-activated n-Si/n-GaAs wafer bonding with high interfacial transparency and electrical conductivity
Essig, S.; Moutanabbir, O.; Wekkeli, A.; Nahme, H.; Oliva, E.; Bett, A.W.; Dimroth, F.
Journal Article
2013Identification and tackling of a parasitic surface compound in SiC and Si-rich carbide films
Canino, M.; Summonte, C.; Allegrezza, M.; Shukla, R.; Jain, I.P.; Bellettato, M.; Desalvo, A.; Mancarella, F.; Sanmartin, M.; Terrasi, A.; Löper, P.; Schnabel, M.; Janz, S.
Journal Article
2013Novel silicon nanocrystal materials for photovoltaic applications
Weiss, C.; Janz, S.; Rumpel, M.; Schnabel, M.; Löper, P.
Conference Paper
2013Optoelectronic Characterization of SiC with Embedded Si Nanocrystals as Solar Cell Absorber Material
Löper, P.; Valenta J.; Canino M.; Glunz S.; Janz S.; Zacharias M.
Conference Paper
2013Photonic band gap engineering of solar cells
Höhn, O.; Kraus, T.; Zilk, M.; Schwarz, U.T.; Bläsi, B.
Conference Paper
2013Plasmonic particles arrays on large areas for photon management
Jüchter, S.; Meisenheimer, S.-K.; Hauser, H.; Wellens, C.; Höhn, O.; Kübler, V.; Fix, T.; Schwarz, U.T.; Bläsi, B.
Conference Paper
2013Processing and characterisation of tandem solar cells from crystalline silicon materials
Janz, S.; Schnabel, M.; Löper, P.; Summonte, C.; Canino, M.; Lopez-Vidrier, J.; Hernandez, S.; Garrido, B.; Glunz, S.W.
Conference Paper
2013Silicon nanocrystals embedded in silicon carbide: Investigation of charge carrier transport and recombination
Löper, P.; Canino, M.; Qazzazie, D.; Schnabel, M.; Allegrezza, M.; Summonte, C.; Glunz, S.W.; Janz, S.; Zacharias, M.
Journal Article
2013Silicon nanocrystals from high-temperature annealing: Characterization on device level
Löper, P.; Canino, M.; Lopez-Vidrier, J.; Schnabel, M.; Schindler, F.; Heinz, F.; Witzky, A.; Bellettato, M.; Allegrezza, M.; Hiller, D.; Hartel, A.; Gutsch, S.; Hernandez, S.; Guerra, R.; Ossicini, S.; Garrido, B.; Janz, S.; Zacharias, M.
Journal Article
2013Structural and optical properties of size controlled Si nanocrystals in Si3N4 matrix: The nature of photoluminescence peak shift
Zelenina, A.; Dyakov, S.A.; Hiller, D.; Gutsch, S.; Trouillet, V.; Bruns, M.; Mirabella, S.; Löper, P.; López-Conesa, L.; López-Vidrier, J.; Estrade, S.; Peiro, F.; Garrido, B.; Bläsing, J.; Krost, A.; Zhigunov, D.M.; Zacharias, M.
Journal Article
2013Structural, optical and electrical properties of silicon nanocrystals embedded in SixC1-x/SiC multilayer systems for photovoltaic applications
López-Vidrier, J.; Hernández, S.; Samà, J.; Canino, M.; Allegrezza, M.; Bellettato, M.; Shukla, R.; Schnabel, M.; Löper, P.; López-Conesa, L.; Estradé, S.; Peiró, F.; Janz, S.; Garrido, B.
Journal Article
2013Thermal oxidation and encapsulation of silicon-carbon nanolayers
Schnabel, M.; Löper, P.; Gutsch, S.; Wilshaw, P.R.; Janz, S.
Journal Article
2012A membrane device for substrate-free photovoltaic characterization of quantum dot based p-i-n solar cells
Löper, P.; Stüwe, D.; Künle, M.; Bivour, M.; Reichel, C.; Neubauer, R.; Schnabel, M.; Hermle, M.; Eibl, O.; Janz, S.; Zacharias, M.; Glunz, S.W.
Journal Article
2012Silicon quantum dots in photovoltaic devices: Device fabrication, characterization and comparison of materials
Löper, P.; Canino, M.; Lopez-Vidrier, J.; Schnabel, M.; Witzky, A.; Belletato, M.; Allegrezza, M.; Hiller, D.; Hartel, A.; Gutsch, S.; Hernandez, S.; Guerra, R.; Ossicini, S.; Garrido, B.; Janz, S.; Zacharias, M.
Conference Paper
20113D Optical Simulation of Scattering in Thin Film Silicon Solar Cells
Peters, M.; Battaglia, C.; Aberle, A.G.; Luther, J.; Bläsi, B.; Glunz, S.
Conference Paper
2011Electrical Properties of Recrystallised SiC Films from PECVD Precursors for Silicon Quantum Dot Solar Cell Applications
Schnabel, M.; Witzky, A.; Löper, P.; Gradmann, R.; Künle, M.; Janz, S.
Conference Paper
2011Formation of size-controlled silicon nanocrystals in plasma enhanced chemical vapor deposition grown SiOxNy/SiO2 superlattices
Hartel, A.M.; Hiller, D.; Gutsch, S.; Löper, P.; Estrade, S.; Peiro, F.; Garrido, B.; Zacharias, M.
Journal Article
2011The NASCEnT Project
Janz, S.; Löper, P.; Schnabel, M.; Zacharias, M.; Hiller, D.; Gutsch, S.; Hartel, A.M.; Summonte, C.; Canino, M.; Allegrezza, M.; Ossicini, S.; Guerra, R.; Marri, I.; Garrido, B.; Hernandez, S.; Lopez-Vidrier, J.; Valenta, J.; Kubera, T.; Foti, M.
Conference Paper
2011Quasi-fermi-level splitting in ideal silicon nanocrystal superlattices
Löper, P.; Müller, R.; Hiller, D.; Barthel, T.; Malguth, E.; Janz, S.; Goldschmidt, J.C.; Hermle, M.; Zacharias, M.
Journal Article
2011Si and SiC nanocrystals in an amorphous SiC matrix: Formation and electrical properties
Gradmann, R.; Loeper, P.; Künle, M.; Rothfelder, M.; Janz, S.; Hermle, M.; Glunz, S.
Journal Article
2010Amorphous SixC1-x:H single layers before and after thermal annealing: Correlating optical and structural properties
Hartel, A.M.; Künle, M.; Löper, P.; Janz, S.; Bett, A.W.
Journal Article
2010Carrier confinement and transport in high band gap materials with embedded Si quantum dots
Löper, P.; Hiller, D.; Künle, M.; Gradmann, R.; Rothfelder, M.; Janz, S.; Hermle, M.; Zacharias, M.; Glunz, S.W.
Conference Paper
2010Low temperature silicon dioxide by thermal atomic layer deposition: Investigation of material properties
Hiller, D.; Zierold, R.; Bachmann, J.; Alexe, M.; Yang, Y.; Gerlach, J.W.; Stesmans, A.; Jivanescu, M.; Müller, U.; Vogt, J.; Hilmer, H.; Löper, P.; Künle, M.; Munnik, F.; Nielsch, K.; Zacharias, M.
Journal Article
2010Silicon nanocrystals in SiC: The influence of doping on crystallisation and electrical properties
Gradmann, R.; Löper, P.; Künle, M.; Rothfelder, M.; Janz, S.; Hermle, M.; Glunz, S.W.
Conference Paper
2010Structural and optical characterization of Si quantumdots in a SiC matrix
Kuenle, M.; Löper, P.; Rothfelder, M.; Janz, S.; Nickel, K.-G.; Eibl, O.
Conference Paper
This publication list has been generated from the publication database Fraunhofer-Publica.