NDLI: Optimization of laser interconnection processes in thin film a-Si modules working at cell level

Content Provider	IEEE Xplore Digital Library
Author	Garcia-Ballesteros, J.J. Torres, I. Morales, M. Canteli, D. Carabe, J. Gandia, J.J. Molpeceres, C.
Copyright Year	2011
Description	Author affiliation: Centro Láser UPM, Universidad Politécnica de Madrid, Campus Sur UPM, Carretera de Valencia Km 7.3. 28031, Spain (Garcia-Ballesteros, J.J.; Morales, M.; Molpeceres, C.) \|\| Departamento de Energías Renovables, Energía Solar Fotovoltaica, CIEMAT, Avda. Complutense, 22. 28040 Madrid, Spain (Torres, I.; Canteli, D.; Carabe, J.; Gandia, J.J.)
Abstract	This work demonstrates the possibility of process optimization for laser monolithic interconnection in thin film amorphous silicon photovoltaic modules working in single cells. Being the laser interconnection process a key step in thin film module fabrication for PV industry, the optimization of this process is usually made at module level being difficult to evaluate separetely the effect of the laser processes in each of the differents scribe steps involved. Additionally the standard size of these modules (in the range of one square meter) and the intrinsic sequence of module fabrication (involving material deposition and laser scribing steps alternativaly) makes quite difficult the feedback for process optimization from research labotatories. Taking this into account, and bearing in mind that unsatisfactory connection conditions of different subcells could spoil completely the device generating, for instance, block parasitic currents due to short circuits generated mainly by the third interconnection process, P3, harmful or incomplete interconnection through the second laser scribe, P2, or poor levels of isolation in the case to first laser processes P1, this work presents a simple approach to process optimization at laboratory level working on single cells and not in complete modules.
Starting Page	1
Ending Page	1
File Size	204029
Page Count	1
File Format	PDF
ISBN	9781457705335
e-ISBN	9781457705328
DOI	10.1109/CLEOE.2011.5943356
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fabrication Lasers Integrated circuit interconnections Materials Pulsed laser deposition Solar power generation Optimization
Content Type	Text
Resource Type	Article

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