Ludovic Arzel
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View article: Characterization of co-evaporated CIGS 5 (Cu 0.65 In 1.75 Ga 1.4 S 5 ) lamellar material used as absorber in thin film solar cell
Characterization of co-evaporated CIGS 5 (Cu 0.65 In 1.75 Ga 1.4 S 5 ) lamellar material used as absorber in thin film solar cell Open
Single-phase lamellar CIGS 5 (Cu 0.65 In 1.75 Ga 1.4 S 5, nominal composition) thin films were synthesized using co-evaporation. Structural, morphological and optoelectronic properties of these films have been investigated. The optical ba…
View article: Interfacial Chemistry of Cu(In,Ga)S<sub>2</sub> on GaP/Si: Insights for Tandem Solar Cell Design
Interfacial Chemistry of Cu(In,Ga)S<sub>2</sub> on GaP/Si: Insights for Tandem Solar Cell Design Open
This article exposes an in‐depth analysis of the chemical interaction between Cu(In,Ga)S 2 thin‐film and GaP/Si(001) pseudo‐substrate, in the framework of the development of high‐efficiency tandem solar cells on Si. A rich Cu‐Ga‐P‐S chemis…
View article: Characterization of Co-Evaporated Cigs5 (Cu0.65in1.75ga1.4s5) Lamellar Material Used as Absorber in Thin Film Solar Cell
Characterization of Co-Evaporated Cigs5 (Cu0.65in1.75ga1.4s5) Lamellar Material Used as Absorber in Thin Film Solar Cell Open
View article: Rethinking CIGS solar cells for rear illumination applications
Rethinking CIGS solar cells for rear illumination applications Open
This study introduces a chalcogenide-based thin-film solar cell structure optimized for rear illumination, featuring a thinner, wide-bandgap Cu(In,Ga)S 2 chalcopyrite absorber. Matching the performance of traditional front-illuminated desi…
View article: Photo-electrochemical characterization of CIGSn lamellar compounds: potential candidates for photoinduced applications
Photo-electrochemical characterization of CIGSn lamellar compounds: potential candidates for photoinduced applications Open
View article: Evidence of Cationic Antiphase Disorder in Epitaxial Cu(In,Ga)S<sub>2</sub> Grown on GaP/Si(001)
Evidence of Cationic Antiphase Disorder in Epitaxial Cu(In,Ga)S<sub>2</sub> Grown on GaP/Si(001) Open
A transmission electron microscopy study of epitaxial Cu(In,Ga)S 2 (CIGS) films coevaporated on GaP/Si(001), in either Cu‐rich or Cu‐poor conditions, is presented. The spatial distribution and the orientation of the different phases by mea…
View article: Photo-Electrochemical Characterization of Cigsn Lamellar Compounds: Potential Candidates for Photoinduced Applications
Photo-Electrochemical Characterization of Cigsn Lamellar Compounds: Potential Candidates for Photoinduced Applications Open
View article: Microstructure characterization of CIGS/GaP/Si tandem solar cells
Microstructure characterization of CIGS/GaP/Si tandem solar cells Open
View article: Unveiling the role of copper content in the crystal structure and phase stability of epitaxial Cu(In,Ga)S2 films on GaP/Si(001)
Unveiling the role of copper content in the crystal structure and phase stability of epitaxial Cu(In,Ga)S2 films on GaP/Si(001) Open
View article: On the role of sodium and copper off‐stoichiometry in Cu (In,Ga)S<sub>2</sub> for photovoltaic applications: Insights from the investigation of more than 500 samples
On the role of sodium and copper off‐stoichiometry in Cu (In,Ga)S<sub>2</sub> for photovoltaic applications: Insights from the investigation of more than 500 samples Open
The present article discusses the investigation of CuIn 1−x Ga x S 2 (CIGS) thin films for photovoltaic applications. For decades, a Cu‐rich composition has been used to create solar cells with efficiencies of up to 13.5%; however, interes…
View article: On the role of sodium and copper off-stoichiometry in Cu(In,Ga)S 2 for photovoltaic applications: Insights from the Investigation of more than 500 samples
On the role of sodium and copper off-stoichiometry in Cu(In,Ga)S 2 for photovoltaic applications: Insights from the Investigation of more than 500 samples Open
The present article discusses the investigation of CuIn Ga S (CIGS) thin films for photovoltaic applications. For decades, a Cu-rich composition has been used to create solar cells with efficiencies of up to 13.5%; however, interest in cha…
View article: RbF-related post-deposition treatments on Cu(In,Ga)(S,Se)2 absorbers: The role of the chalcogen atmosphere
RbF-related post-deposition treatments on Cu(In,Ga)(S,Se)2 absorbers: The role of the chalcogen atmosphere Open
View article: Ternary Planar Heterojunction Organic Solar Cells Based on the Ternary Active Layers: α-6T/AlPcCl/C60
Ternary Planar Heterojunction Organic Solar Cells Based on the Ternary Active Layers: α-6T/AlPcCl/C60 Open
Ternary planar heterojunction organic solar cells (PHJ-OPVs) were fabricated using three organic small molecules, alpha-sexithiophene (α-6T), aluminum phthalocyanine chloride (AlPcCl) and fullerene (C60). These molecules can be easily subl…
View article: Modelling of photovoltaic production and electrochemical storage in an autonomous solar drone
Modelling of photovoltaic production and electrochemical storage in an autonomous solar drone Open
A simple, efficient simulator has been developed to predict the generation of photovoltaic energy and its storage in Li-ion batteries, for an autonomous drone with four wings covered by solar panels based on thin-film gallium arsenide phot…
View article: Investigation of co-evaporated polycrystalline Cu(In,Ga)S<sub>2</sub>thin film yielding 16.0 % efficiency solar cell
Investigation of co-evaporated polycrystalline Cu(In,Ga)S<sub>2</sub>thin film yielding 16.0 % efficiency solar cell Open
The interest for pure sulfide Cu(In,Ga)S 2 chalcopyrite thin films is increasing again because their optical properties make them relevant candidates to be applied as top cell absorbers in tandem structures. Nonetheless, their use as so is…
View article: Rbf-Related Post-Deposition Treatments on Cu(In,Ga)(S,Se)2 Absorbers: The Role of the Chalcogen Atmosphere
Rbf-Related Post-Deposition Treatments on Cu(In,Ga)(S,Se)2 Absorbers: The Role of the Chalcogen Atmosphere Open
View article: Power Conversion Efficiency Improvement of Planar Organic Photovoltaic Cells Using an Original Hybrid Electron-Transporting Layer
Power Conversion Efficiency Improvement of Planar Organic Photovoltaic Cells Using an Original Hybrid Electron-Transporting Layer Open
In organic photovoltaic (OPV) cells, besides the organic active layer, the electron-transporting layer (ETL) has a primordial role in transporting electrons and blocking holes. In planar heterojunction-OPVs (PHJ-OPVs), the ETL is called th…
View article: Detrimental copper-selenide bulk precipitation in CuIn1-xGaxSe2 thin-film solar cells. A possible reason for the limited performance at large x?
Detrimental copper-selenide bulk precipitation in CuIn1-xGaxSe2 thin-film solar cells. A possible reason for the limited performance at large x? Open
View article: Improved CuGaSe2 absorber properties through a modified co-evaporation process
Improved CuGaSe2 absorber properties through a modified co-evaporation process Open
View article: Sn Substitution by Ge: Strategies to Overcome the Open-Circuit Voltage Deficit of Kesterite Solar Cells
Sn Substitution by Ge: Strategies to Overcome the Open-Circuit Voltage Deficit of Kesterite Solar Cells Open
Current state-of-the-art Cu2ZnSn(S,Se)(4) kesterite solar cells are limited by low open-circuit voltages (V-OC). In order to evaluate to what extent the substitution of Sn by Ge is able to result in higher V oc values, this article focuses…
View article: On the contribution of fullerene to the current of planar heterojunction organic solar cells
On the contribution of fullerene to the current of planar heterojunction organic solar cells Open
International audience
View article: Smart geometrical approach to intercalate a highly absorbing and quite resistive electron donor layer in ternary organic photovoltaic cells
Smart geometrical approach to intercalate a highly absorbing and quite resistive electron donor layer in ternary organic photovoltaic cells Open
View article: The effect of the band structure on the Voc value of ternary planar heterojunction organic solar cells based on pentacene, boron subphthalocyanine chloride and different electron acceptors
The effect of the band structure on the Voc value of ternary planar heterojunction organic solar cells based on pentacene, boron subphthalocyanine chloride and different electron acceptors Open
View article: Effects of KF and RbF post deposition treatments on the growth of the CdS buffer layer on CIGS thin films - a comparative study
Effects of KF and RbF post deposition treatments on the growth of the CdS buffer layer on CIGS thin films - a comparative study Open
International audience
View article: Facile enhancement of bulk heterojunction solar cells performance by utilizing PbSe nanorods decorated with graphene
Facile enhancement of bulk heterojunction solar cells performance by utilizing PbSe nanorods decorated with graphene Open
View article: 17.2% efficiency CuIn<sub>1−<i>x</i></sub>Ga<i><sub>x</sub></i>Se<sub>2</sub> thin-film based mini-module thanks to alternative architecture yielding 81% fill factor
17.2% efficiency CuIn<sub>1−<i>x</i></sub>Ga<i><sub>x</sub></i>Se<sub>2</sub> thin-film based mini-module thanks to alternative architecture yielding 81% fill factor Open
An alternative to conventional Cu(In,Ga)Se 2 module structure is proposed and experimentally investigated. This alternative module structure, which consists in applying metallic buses to connect monolithically adjacent cells in series, is …
View article: Wide band gap kesterite absorbers for thin film solar cells: potential and challenges for their deployment in tandem devices
Wide band gap kesterite absorbers for thin film solar cells: potential and challenges for their deployment in tandem devices Open
This study describes the potential and challenges involved with the use of wide bandgap kesterite absorbers in tandem solar cells.
View article: Highlighting the possibility of parallel mechanism in planar ternary photovoltaic cells
Highlighting the possibility of parallel mechanism in planar ternary photovoltaic cells Open
Ternary and binary planar heterojunctions (PHJs) have been realized and characterized. The outer layers of the active organic layers are pentathiophene (5T) and fullerene (C60), while the intercalated layer is AlPcCl. The binary, 5T/C60, 5…
View article: 7.6% CZGSe Solar Cells Thanks to Optimized CdS Chemical Bath Deposition
7.6% CZGSe Solar Cells Thanks to Optimized CdS Chemical Bath Deposition Open
In this study, CdS chemical bath deposition is investigated to improve the performance of thin film solar cell based on Cu 2 ZnGeSe 4 /CdS heterojunction. The influence of both the bath temperature and the dipping duration on the CdS thin …
View article: Effect of the KF post-deposition treatment on grain boundary properties in Cu(In, Ga)Se2 thin films
Effect of the KF post-deposition treatment on grain boundary properties in Cu(In, Ga)Se2 thin films Open
Significant power conversion efficiency improvements have recently been achieved for thin-film solar cells based on a variety of polycrystalline absorbers, including perovskites, CdTe, and Cu(In,Ga)Se 2 (CIGS). The passivation of grain bou…