Jørgen Schou
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View article: Effect of Interface Passivation on the Performance of the Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cells
Effect of Interface Passivation on the Performance of the Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cells Open
This study examines the effect of ultrathin aluminum oxide (Al2O3) passivation layer on the performance of the kesterite Cu2ZnSnS4 (CZTS) solar cells. The Al2O3 layer was ap…
View article: Effect of InterfacePassivation on the Performanceof the Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cells
Effect of InterfacePassivation on the Performanceof the Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cells Open
This study examines the effect of ultrathin aluminum oxide (Al2O3) passivation layer on the performance of the kesterite Cu2ZnSnS4 (CZTS) solar cells. The Al2O3 layer was ap…
View article: The effect of post-annealing on the performance of the Cu2ZnSnS4 solar cells
The effect of post-annealing on the performance of the Cu2ZnSnS4 solar cells Open
Cu2ZnSnS4 (CZTS) solar cells commonly undergo post-annealing treatments to enhance their performance. However, multiple concurrent effects, including Cu-Zn disorder, Na diffusion from the back contact, CZTS grain boun…
View article: The effect of post-annealing on the performance of the Cu2 ZnSnS4 solar cells
The effect of post-annealing on the performance of the Cu2 ZnSnS4 solar cells Open
Cu 2 ZnSnS 4 (CZTS) solar cells commonly undergo post-annealing treatments to enhance their performance. Yet, multiple concurrent effects, including Cu-Zn disorder, Na diffusion from the back contact, CZTS grain boundary passivation, and e…
View article: Development of Fabrication Process for Electroplated CZTS Absorber
Development of Fabrication Process for Electroplated CZTS Absorber Open
Electroplating is a cost-effective method for deposition of copper-zinc-tin (CuZnSn) alloys which can be a precursor to fabricate CZTS absorbers for thin-film solar cells. Focus has been on development of simple and robust electroplating p…
View article: Monolithically Integrated BiVO<sub>4</sub>/Si Tandem Devices Enabling Unbiased Photoelectrochemical Water Splitting
Monolithically Integrated BiVO<sub>4</sub>/Si Tandem Devices Enabling Unbiased Photoelectrochemical Water Splitting Open
A photoelectrochemical (PEC) water splitting device based on a dual‐junction monolithic tandem cell that utilizes NiOOH/FeOOH/BiVO 4 /SnO 2 /Ta:SnO 2 (TTO)/tunnel oxide passivated contact (TOPCon) Si is reported. The PEC device achieves a …
View article: Silver-substituted (Ag1-xCux)2ZnSnS4 solar cells from aprotic molecular inks
Silver-substituted (Ag1-xCux)2ZnSnS4 solar cells from aprotic molecular inks Open
To battle the high open-circuit voltage deficit (VOC,def) in kesterite (Cu2ZnSnS4 or CZTS) solar cells, a current field of research relates to point defect engineering by cation substitution. For example, by partly replacing Cu with an ele…
View article: Gettering in PolySi/SiO<i><sub>x</sub></i> Passivating Contacts Enables Si-Based Tandem Solar Cells with High Thermal and Contamination Resilience
Gettering in PolySi/SiO<i><sub>x</sub></i> Passivating Contacts Enables Si-Based Tandem Solar Cells with High Thermal and Contamination Resilience Open
Multijunction solar cells in a tandem configuration could further lower the costs of electricity if crystalline Si (c-Si) is used as the bottom cell. However, for direct monolithic integration on c-Si, only a restricted number of top and b…
View article: Laser-assisted Synthesis of 2D Quantum Materials and Heterostructures
Laser-assisted Synthesis of 2D Quantum Materials and Heterostructures Open
View article: Gettering in polySi/SiOx passivating contacts enables Si-based tandem solar cells with high thermal and contamination resilience
Gettering in polySi/SiOx passivating contacts enables Si-based tandem solar cells with high thermal and contamination resilience Open
Multijunction solar cells in a tandem configuration could further lower the costs of electricity if crystalline Si (c-Si) is used as bottom cell. However, for direct monolithic integration on c-Si, only a restricted number of top and botto…
View article: Intrinsic Defects in MoS<sub>2</sub> Grown by Pulsed Laser Deposition: From Monolayers to Bilayers
Intrinsic Defects in MoS<sub>2</sub> Grown by Pulsed Laser Deposition: From Monolayers to Bilayers Open
Pulsed laser deposition (PLD) can be considered a powerful method for the growth of two-dimensional (2D) transition-metal dichalcogenides (TMDs) into van der Waals heterostructures. However, despite significant progress, the defects in 2D …
View article: Spin-coated $$\hbox {Cu}_2\hbox {ZnSnS}_{4}$$ solar cells: A study on the transformation from ink to film
Spin-coated $$\hbox {Cu}_2\hbox {ZnSnS}_{4}$$ solar cells: A study on the transformation from ink to film Open
In this paper, we study the DMSO/thiourea/chloride salt system for synthesis of pure-sulfide $$\hbox {Cu}_2\hbox {ZnSnS}_{4}$$ (CZTS) thin-film solar cells under ambient conditions. We map out the ink constituents and determine the effect…
View article: Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTS
Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTS Open
View article: Monolithic thin-film chalcogenide-silicon tandem solar cells enabled by a diffusion barrier
Monolithic thin-film chalcogenide-silicon tandem solar cells enabled by a diffusion barrier Open
Following the recent success of monolithically integrated Perovskite/Si tandem solar cells, great interest has been raised in searching for alternative wide bandgap top-cell materials with prospects of a fully earth-abundant, stable and ef…
View article: Persistent Double-Layer Formation in Kesterite Solar Cells: A Critical Review
Persistent Double-Layer Formation in Kesterite Solar Cells: A Critical Review Open
In kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cell research, an asymmetric crystallization profile is often obtained after annealing, resulting in a bilayered - or double-layered - CZTSSe absorber. So far, only segregate…
View article: Oxide route for production of Cu2ZnSnS4 solar cells by pulsed laser deposition
Oxide route for production of Cu2ZnSnS4 solar cells by pulsed laser deposition Open
View article: Characterization of Cu<sub>2</sub>ZnSnS<sub>4</sub> Particles Obtained by the Hot-Injection Method
Characterization of Cu<sub>2</sub>ZnSnS<sub>4</sub> Particles Obtained by the Hot-Injection Method Open
In the last decade, Cu2ZnSnS4 (CZTS) has been a promising earth-abundant, nontoxic candidate material for absorption layers within thin-film solar cells. One major issue preventing this type of solar cells from achiev…
View article: Monolithic thin-film chalcogenide–silicon tandem solar cells enabled by a diffusion barrier
Monolithic thin-film chalcogenide–silicon tandem solar cells enabled by a diffusion barrier Open
View article: History and prospects of the physical synthesis of kesterite for photovoltaic applications
History and prospects of the physical synthesis of kesterite for photovoltaic applications Open
Through the years, kesterite Cu2ZnSn(S,Se)4 thin films have been fabricated using various physical synthesis technologies. Among them, sequential stacking or co-sputtering of precursors as well as sequential or co- evaporation of elemental…
View article: Physical routes for the synthesis of kesterite
Physical routes for the synthesis of kesterite Open
This paper provides an overview of the physical vapor technologies used to synthesize Cu 2 ZnSn(S,Se) 4 thin films as absorber layers for photovoltaic applications. Through the years, CZT(S,Se) thin films have been fabricated using sequent…
View article: Carrier Selective Contacts based on Low Pressure Chemical Vapor Deposition on Planar and Black Silicon
Carrier Selective Contacts based on Low Pressure Chemical Vapor Deposition on Planar and Black Silicon Open
View article: Large process-dependent variations in band alignment and interface band gaps of Cu2ZnSnS4/CdS solar cells
Large process-dependent variations in band alignment and interface band gaps of Cu2ZnSnS4/CdS solar cells Open
View article: Comparison of potassium-functionalized Cu<inf>2</inf>ZnSnS<inf>4</inf> nanoparticles annealed in different reactive sulfide atmospheres
Comparison of potassium-functionalized Cu2ZnSnS4 nanoparticles annealed in different reactive sulfide atmospheres Open
Kesterite Cu 2 ZnSnS 4 (CZTS) can be a promising, alternative material for thin-film solar cells, because it is earth-abundant, non-toxic and displays relevant physical properties. For future up-scaling possibilities …
View article: Liquid phase assisted grain growth in Cu<sub>2</sub>ZnSnS<sub>4</sub> nanoparticle thin films by alkali element incorporation
Liquid phase assisted grain growth in Cu<sub>2</sub>ZnSnS<sub>4</sub> nanoparticle thin films by alkali element incorporation Open
We present a route where organic ligand-free, KCl-functionalized Cu2ZnSnS4 nanoparticles grow into large, dense grains during annealing in nitrogen/sulfur atmosphere.
View article: Nonstoichiometric transfer during laser ablation of metal alloys
Nonstoichiometric transfer during laser ablation of metal alloys Open
Large angular variations in film composition have been found for ablation of a metallic AuCu alloy (Au/Cu ratio ∼1) in vacuum and background gases of Ne and Xe. The AuCu films grown in vacuum at a laser fluence of 5 Jcm-2 exhibi…
View article: Temperature dependent photoreflectance study of Cu2SnS3 thin films produced by pulsed laser deposition
Temperature dependent photoreflectance study of Cu2SnS3 thin films produced by pulsed laser deposition Open
The energy band structure of Cu2SnS3 (CTS) thin films fabricated by pulsed laser deposition was studied by photoreflectance spectroscopy (PR). The temperature-dependent PR spectra were measured in the range of T = 10–150 K. According to th…
View article: Pulsed laser deposition (PLD) of the CZTS absorber for thin solar cells with up to 5.2-% -efficiency
Pulsed laser deposition (PLD) of the CZTS absorber for thin solar cells with up to 5.2-% -efficiency Open
View article: Technology for Si/CZTS Tandem Solar Cell
Technology for Si/CZTS Tandem Solar Cell Open
View article: Spray-coated Cu2ZnSnS4 thin films for large-scale photovoltaic applications
Spray-coated Cu2ZnSnS4 thin films for large-scale photovoltaic applications Open
The kesterite material, Cu2ZnSnS4 (CZTS), has in the preceding ten years been investigated and developed as a new Earth-abundant material for solar cells. The interest in this inorganic semiconductor originates in its optimal energy band g…
View article: Lattice-matched Cu2ZnSnS4/CeO2 solar cell with open circuit voltage boost
Lattice-matched Cu2ZnSnS4/CeO2 solar cell with open circuit voltage boost Open
We report a reproducible enhancement of the open circuit voltage in Cu2ZnSnS4 solar cells by introduction of a very thin CeO2 interlayer between the Cu2ZnSnS4 absorber and the conventional CdS buffer. CeO2, a non-toxic earth-abundant compo…