Nanostructured Solar Cells
The Laboratory for Nanostructured Solar Cells (LaNaSC) develops nano- and micro-structures of chalcopyrite-type semiconductors (Cu(In,Ga)Se2) for application in photovoltaic energy conversion.
- Development of advanced thin-film solar cells by the implementation of micro- and nanostructures.
- Development and application of scanning probe microscopy techniques for the characterization of solar cell materials and light-induced phenomena at the nanometer scale.
- Development of 2D materials for optoelectronis applications.
- Development of growth methods for chalcopyrite nanostructures i.e. quantum dots and nanowires. The goal is to combine the excellent light absorbing properties of chalcopyrite-type materials with the quantum properties of nanostructured materials, and thereby provide a pathway for the enhancement of power conversion efficiencies of photovoltaic devices beyond the Shockley-Queisser limit.
The laboratory is equipped with various materials preparation facilities consisting in a molecular beam epitaxy (MBE) setup for the growth of nanostructured chalcopyrite-type semiconductors, a hybrid sputter system for Cu(In,Ga)Se2, Mo, and ZnO, and an evaporation system for Cu(In,Ga)Se2 thin films.
The lab also operates an ultra-high vacuum scanning probe microscope, combining STM, AFM, and KPFM facilities with surface photovoltage methods to study light-induced phenomena at the nanometer scale.
We are always open for new team members. If you are interested in joining us and applying for external funding (i.e. MSCA, FCT, etc.), please contact Sascha by email at email@example.com.
Spin-orbit torque flash analog-to-digital converter
SCIENTIFIC REPORTS, 2023
Fabrication of semi-transparent Cu(In,Ga)Se-2 solar cells aided by Bromine etching
THIN SOLID FILMS, 2023
Van der Waals Heteroepitaxy of GaSe and InSe, Quantum Wells, and Superlattices
ADVANCED FUNCTIONAL MATERIALS, 2023
Precisely nanostructured HfO2 rear passivation layers for ultra-thin Cu(In,Ga)Se-2
PROGRESS IN PHOTOVOLTAICS, 2022
Current Status of Bottom-Up Fabrication Approaches for Cu(In,Ga)Se-2 Micro-Concentrator Solar Cells
17TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-17), 2022
Optimizing PMMA solutions to suppress contamination in the transfer of CVD graphene for batch production
BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 2022
Effect of Se-Free Annealing on Cesium Fluoride-Treated Cu(In,Ga)Se-2 Thin Films and Corresponding Solar Cells
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2022
Merging solution processing and printing for sustainable fabrication of Cu(In,Ga)Se-2 photovoltaics
CHEMICAL ENGINEERING JOURNAL, 2022
Effect of Cu-In-Ga Target Composition on Hybrid-Sputtered Cu(In,Ga)Se-2 Solar Cells
IEEE JOURNAL OF PHOTOVOLTAICS, 2021
Effect of Se-Free Annealing on Cesium Fluoride-Treated Cu(In,Ga)Se2 Thin Films and Corresponding Solar Cells
Physica Status Solidi (RRL) – Rapid Research Letters, 2021
Novel Polymorph of GaSe
ADVANCED FUNCTIONAL MATERIALS, 2021
Efficient ReSe2 Photodetectors with CVD Single-Crystal Graphene Contacts
Role of sublimation kinetics of ammonia borane in chemical vapor deposition of uniform, large-area hexagonal boron nitride
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2021
Atomic-Scale Interface Modification Improves the Performance of Cu(In1-xGax)Se-2/Zn(O,S) Heterojunction Solar Cells
ACS APPLIED MATERIALS & INTERFACES, 2021
Van der Waals Epitaxy of Ultrathin beta-In2Se3 on Insulators Used in Standard Silicon Microelectronics Technology
CRYSTAL GROWTH & DESIGN, 2021
Wafer-Scale Fabrication of 2D beta-In2Se3 Photodetectors
ADVANCED OPTICAL MATERIALS, 2021
Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surface
NATURE COMMUNICATIONS, 2020
Design and Characterization of 3D Self-folded Micro Antennas for Implantable Microdevices
IEEE Transactions on Antennas and Propagation, 2020
Over 6% Efficient Cu(ln,Ga)Se-2 Solar Cell Screen-Printed from Oxides on Fluorine-Doped Tin Oxide
ACS APPLIED ENERGY MATERIALS, 2020
Heavy Alkali Treatment of Cu(In,Ga)Se-2 Solar Cells: Surface versus Bulk Effects
ADVANCED ENERGY MATERIALS, 2020
Giant V-oc Boost of Low-Temperature Annealed Cu(In,Ga)Se-2 with Sputtered Zn(O,S) Buffers
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2019
Thin-film micro-concentrator solar cells
JOURNAL OF PHYSICS-ENERGY, 2019
Area-selective electrodeposition of micro islands for CuInSe2-based photovoltaics
RESULTS IN PHYSICS, 2019
Voids in Kesterites and the Influence of Lamellae Preparation by Focused Ion Beam for Transmission Electron Microscopy Analyses
IEEE JOURNAL OF PHOTOVOLTAICS, 2019
Evidence of reversible oxidation at CuInSe2 grain boundaries
2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC), 2019
CuInSe2 quantum dots grown by molecular beam epitaxy on amorphous SiO2 surfaces
BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 2019
Interface modification in type-II ZnCdSe/Zn(Cd)Te QDs for high efficiency intermediate band solar cells
Journal of Crystal Growth Volume 512, 15 April 2019, Pages 203-207, 2019