Stable passivation of cut edges in encapsulated n-type silicon solar cells using Nafion polymer

In this study, the edge passivation effectiveness and long-term stability of Nafion polymer in n-type interdigitated back contact (IBC) solar cells are investigated. For new module technologies such as half-cut, triple-cut, or shingled modules, cutting of the cells introduces unpassivated edges with a high recombination rate and this limits the...

Mitigating Cut Losses in Interdigitated Back Contact Solar Cells

The edge recombination losses of crystalline silicon solar cells become significant when they are cut into smaller pieces to be assembled into modules. With the interdigitated pattern of doped p and n regions on the rear side, the interdigitated back contact (IBC) solar cells can be cut through different doped regions. In this study, the...

Coaxial negative torsion stiffness mechanism developed for compact gravity compensation

The mechanism presented in this paper generates a partially negative stiffness characteristic, which is suitable for the balancing of a pendulum in a gravity field. The mechanism uses deformation in the axial direction of the base joint to store potential energy. The proposed design is located next to the base joint of the pendulum in an area...

Failure Mechanisms of Mechanically and Thermally Produced Holes in High-Strength Low-Alloy Steel Plates Subjected to Fatigue Loading

High-strength low-alloy steels (HSLA) are gaining popularity in structural applications in which weight reduction is of interest, such as heavy duty machinery, bridges, and offshore structures. Since the fatigue behavior of welds appears to be almost independent of the base material and displays little improvement when more resistant steel...

Fabrication and Characterization of a Prototype Forward-Looking Single-Cable 64-Element Intra-Vascular Ultrasound Probe

This paper presents the integration steps towards a prototype forward-looking intra-vascular ultrasound probe. An ASIC (Application Specific Integrated Circuit) is laser cut to create a 1.6mm circular shaped die that can be integrated at the tip of a small catheter. The ASIC is designed such that it can be used to transmit and receive on 64...

Indoor Solar Lamp: Simulating Interior Radiant Energy for the Design and Prototyping of an Indoor PV Lamp

Solar photovoltaic cells are destined to become an important contributor in the renewable energy sector, also for small electrical systems inside buildings. They can be used to mobilise the electrical infrastructure, by providing an independent energy source for medium-consumption products, like decorative lighting. This thesis shows all aspects...

Enhancing Solar Energy Integration with Innovative mini-modules

As solar energy finds its way into unexpected applications such as buildings or objects, the traditional rectangle-shaped module becomes inadequate. Although traditional modules have been optimized to deliver a large amount of power, they cannot be fitted easily into a façade or a wearable. This is why, new methods for integrating solar power...

Aito Haptic Mid-Console: Design of an Haptic Feedback Enabled Demonstrator for Automotive HMI Applications

While touch Interfaces have greatly improved the user friendliness and functional possibilities of devices, haptic feedback has been lacking in user interface design. Good Haptic feedback not only gives confirmation of a key press, but also enriches the user interaction and improves the usability of interfaces.<br/>This absence of haptic...

Development of a semi transparent perovskite module: Optimization of the laser scribe for interconnection

Despite the fact of the outstanding efficiency of the perovskite-based devices, their current size is<br/>around a few square millimeters. The application of this thin-film technology in module scale requires<br/>an interconnection with optimal laser processing to create a channel for the photo current. In<br/>this project, the relation between...

Help Make The Cut: Exploring the way laser cutting can better support the design processes of students in creative education.

This thesis is concerned with the question of in what way laser cutting can better support the creative design processes of students. Laser cutting has many benefits over other manufacturing options, including high accuracy, aesthetics, consistency and in general high speed, form freedom and repeatability. In creative education, laser cutting...