A5046576326- Silicon and Solar Cell Technologies
- 3D IC and TSV technologies
- solar cell performance optimization
- Semiconductor materials and interfaces
- Integrated Circuits and Semiconductor Failure Analysis
- Photovoltaic System Optimization Techniques
- Fiber-reinforced polymer composites
- High voltage insulation and dielectric phenomena
- Electrostatic Discharge in Electronics
- Combustion and Detonation Processes
- Pulsed Power Technology Applications
- Photovoltaic Systems and Sustainability
- Electromagnetic Launch and Propulsion Technology
- Plasma Diagnostics and Applications
Fraunhofer Institute for Solar Energy Systems
2019-2024
United States Army
2007
United States Army Combat Capabilities Development Command
2007
United States Department of the Army
2007
We present the design, implementation and optimization of laser metal bonding (LMB), a new approach for joining thin aluminum foils back surfaces solar cells with focus on low impact semiconductor good adhesion. After gaining deep insights into laser-material interaction using finite difference simulations, we succeeded in establishing an expulsion free process that can be tuned from non-ablative bonding, which leaves substrate largely intact, to welding, produces highly adhesive joints....
Abstract The investigation of novel cell‐to‐cell interconnection methods has gained importance with the increase wafer sizes. Shingling (i.e., overlapping) solar cells is not only a solution for smaller but also chance to output power density by (i) increasing active cell area within module, (ii) decreasing shading losses, and (iii) reducing electrical losses. Replacing commonly used expensive materials such as silver in cell's electrodes electrically conductive adhesive increases...
In this contribution the novel aluminum foil based rear metallization technology FoilMet® - Connect is introduced. With technology, we combine optical advantages of a metallized rear, known from Classic and high voltages screen printed furnace fired contacts usually applied in industrial PERC. The paste volume reduced which show to come with benefits formation during firing process standard belt furnace. report an improvement cell efficiency by Δη = (0.25±0.15) %abs over mono facial...
The demand for cost-effective and highly efficient solar cells is increased by the need to shift energy production renewables. FoilMet-Connect technology offers a way meet this achieving higher cell efficiencies while utilizing low-cost aluminum foil large parts of rear electrode. This realized reduction screen-printed area small disks, which are electrically connected via laser welding. necessary adhesion achieved additionally bonding passivation cell. presented in work achieve an...
A 2nd generation dual purpose pulse forming network (DP-PFN) has been developed to power both the electro-thermal-chemical (ETC)/electro-thermal-ignition (ETI) lethality capability and electro-magnetic armor (EMA) survivability improvements envisioned for future hybrid-electric vehicles. ETI decreases ignition variability associated with launching of conventional munitions by roughly a factor ten which, in conjunction systems ballistic computer, greatly enhances hit probability round. ETC...
We present the design, implementation and optimization of laser metal bonding (LMB), a new approach for joining thin aluminum foils back surfaces solar cells with focus on low impact semiconductor good adhesion. succeeded in establishing an expulsion free process to create highly adhesive joints dielectric layers without penetrating them. Electrically conducting contacts have been successfully created PERC via LMB locally opened nitride layers, achieving efficiencies up 20.5%.
There is a high demand for small photovoltaic (PV) modules that can provide 12V or more to operate electronic devices with low power consumption, such as parking meters, street signs, and remote Internet of Things (IoT). However, state-of-the-art PV either require several step-up converters achieve the necessary voltage are put together from sub-cells, requiring significant handling interconnection overhead during manufacturing. The technology described in this work allows interconnect rear...
Summary form only given. The central aim of the work is to conduct basic research on metallized polypropylene based capacitors with overall goal increase energy density for pulsed power applications. three areas are improving performance flat windings, sprayed end connection, and feasibility a film ultraviolet treatment station. station studied. looks at required studies preliminarily pilot test rewinder.
Summary form only given. The Army's Pulse Power for Future Combat System (FCS) Army Technology Objective (ATO) program is developing the high-voltage pulse power components required to allow integration of revolutionary survivability and lethality in ground combat vehicles. This paper will describe recent advances high energy density (MED) biaxial-oriented poly-propylene (BOPP) capacitors.