22.4% bifacial n-PERT cells with Ni/Ag co-plated contacts and Voc ~691 mV

Fretting corrosion of tin-plated contacts

The susceptibility of tin-plated contacts to fretting corrosion is a major limitation for its use in electrical connectors. The present paper evaluates the influence of a variety of factors, such as, fretting amplitude (track length), frequency, temperature, humidity, normal load and current load on the fretting corrosion behaviour of tin-plated contacts. This paper also addresses the developme...

Development of bifacial n-type solar cells for industrial application

Fretting corrosion of tin-plated contacts: Evaluation of surface characteristics

The surface characteristics of the contact zone of tin-plated copper alloy contacts subjected to fretting motion for 8000, 16,800 and 48,000 cycles under unlubricated conditions are presented. The nature of the contact zone, at the verge of wearing out of the tin coating as well as upon the coating is completely worn out, is assessed using scanning electron microscopy (SEM), energy-dispersive X...

Implied-voc and Suns-voc Measurements in Multicrystalline Solar Cells

Identifying loss mechanisms and predicting device performance are key goals of device and process characterization. Photoconductance measurements allow the extraction of the Implied Voc and Suns Voc, which together can be used for process monitoring, for loss analysis and to identify the potential device performance in the absence of unwanted defects. In this paper, we measure the Implied Voc a...

CS 224 N : Natural Language Processing

The objective of this project is to analyze the performance of a class-based language model and compare it to the performance of traditional n-gram language models. Class-based language models are well-studied, as is the use of clustering to learn classes of words. However, it seems fairly standard across the literature to use hard-clustering i.e. assign each word to a single class and then to ...