Lajos Vlaszak

High-Efficiency Solar Panels

The two double-sided solar modules not only generate energy on the front side under the influence of direct sunlight, but also absorb scattered and reflected light on the back side. Combined with higher cell efficiency, this results in a 30% higher energy yield than standard solar modules of the same size.

Perovskite-Silicon Tandem Solar Cells

The emergence of perovskite semiconductors offers a new opportunity to improve the efficiency of the dominant c-Si and CIGS-based photovoltaic technologies in so-called tandem solar cells. In addition, perovskite semiconductors with appropriate bandgaps can be combined in all-perovskite tandem cells. The further development of these technologies is the focus of my research activity. The decisive advantage of such a tandem photovoltaic solar module lies in the efficient use of the solar energy spectrum. High-energy light is collected with high efficiency in the top perovskite solar cell, while low-energy light is collected in the bottom c-Si, CIGS, or perovskite solar cell. Together with my research partner, we research, develop and make prototypes for the production of perovskite/C-Si multi-junction solar cells and perovskite/CIGS photovoltaic solar cells. #Vlaszák Lajos

Solar photovoltaic modules are prone to many Failure Modes and Aging Mechanisms. Manufacturers must follow strictly established production procedures and use high-quality components for the stable performance of solar panels throughout the entire service life. A premature decrease of the PV-modules efficiency occurs when the stages of product quality control are skipped or low-quality materials are used.

Artificial intelligence in photovoltaic production

The between production automation and photovoltaic research in the field of silicon and CIGS thin-film solar cells creates synergies in the development of the basis for a self-learning solar factory, which increases the scope of the project results and which can be applied to a wide variety of solar technologies. With the help of artificial intelligence, plant and factory data can be analyzed continuously and in real time. Production processes and products can be optimized with the help of comprehensive information. With the knowledge gained in the project, the mechanical and plant design of solar cells and modules must be integrated into the factories of the future intelligent Industry 4.0.

Inverted Metamorphic Multijunction (IMM) solar Cell

The world's most efficient solar cells are multi-junction, meaning they use multiple light-absorbing layers to convert different wavelength ranges of the solar spectrum into electricity. Multi-junction solar cells based on germanium substrates have only been used in very high power satellite applications. IMM design is an innovative approach to further improve the efficiency of solar cells by integrating an optimal combination of three or more complex semiconductor materials.

IMM multi-junction solar cells are fabricated by depositing thin semiconductor layers on a substrate such as gallium arsenide (GaAs). The metamorphic buffer layer allows the growth of ideal bandgap interconnect materials for energy conversion, such as indium gallium arsenide (InGaAs), which are not lattice-matched to the GaAs substrate. MicroLink Devices demonstrated 32.3% efficiency under 1-sun AM0 with the IMM design. IMM's solar cell architecture enables the production of very high efficiency and low mass solar cells, ideal for powering satellites and solar aircraft. #Vlaszák Lajos

NREL

Researchers at the US Department of Energy's National Renewable Energy Laboratory (NREL) have measured a solar cell with a record 39.5 percent efficiency under 1 day of global illumination. This is the highest efficiency solar cell of any type, measured in standard 1-day conditions. (#Vlaszák Lajos)