Zitieren Dateien zu dieser Ressource. Mechanisms, Models and Applications Publikationstyp: Finally, the impact of the contact firing process on the cell performance will be investigated. Part II deals with the investigation of the silver thick film metallisation applied to solar cells. Die elektrische Kontaktbildung ist Inhalt des Kapitels 5. The results of these investigations will lead to the successful fabrication of a solar cell with a moderately doped emitter with a series resistance of 0. The thesis is divided into three parts.

Die vorherrschende Technologie zur Kontaktierung von Silizium-Solarzellen in der Photovoltaikindustrie ist die Dickfilmmetallisierung. The experiments will be the basis for the development of a successful aluminium thick film paste. The focus is thereby on the role of lead oxide contained in the glass frit commonly used in silver thick film pastes. After a brief introduction in glass theory, fabrication, and characterisation in chapter 7 the model of silver thick film contact formation developed in chapter 5 will be applied to the development of lead free silver thick film pastes. Mechanisms, Models and Applications Publikationstyp:

These investigations will lead to the development of a successful lead free silver thick film paste. The microstructure of the contact interface of silver thick film contacts to silicon will be investigated by scanning electron microscopy and energy dispersive x-ray spectroscopy solarzelle dissertation chapter 4.

In chapter 2 the major loss mechanisms in typical industrial solar cells are identified and investigated. These results will be compared to experimental measurements.

Die vorherrschende Technologie zur Solarzelle dissertation von Silizium-Solarzellen in der Photovoltaikindustrie ist die Dickfilmmetallisierung. Die Glasfritte ist Teil einer typischen Dickfilmpaste.

In Kapitel 8 werden die Untersuchungen solarzelle dissertation Experimente zur Entwicklung einer blei- und cadmiumfreien Aluminiumpaste vorgestellt. To get a deeper insight in the current transport mechanisms in the silver solarzelle dissertation film contact, the beneficial effect of a forming gas anneal on the contact resistivity of silver thick film contacts to silicon is investigated.

Part I deals with the industrial solar cell in general.

An overview of thick film deposition technologies and basic concepts is given. Mechanisms, Models and Applications solarzelle dissertation. Experimentally, the properties of the lead solarzelle dissertation glass frits are tested. Dickfilmmetallisierung von kristallinen Siliziumsolarzellen. Aus den Erkenntnissen wird ein Modell der Kontaktbildung aufgestellt.

These models are applied to develop a process sequence that allows contacting of moderately doped phosphorous emitters ND,surf. One solarzelle dissertation for further reduction of the production costs per watt peak is to increase solarzelle dissertation efficiency of industrial solar cells. In chapter 6 the electrical properties of the formed silver thick film contact will be examined.

Zitieren Dateien zu dieser Ressource. Suitable test structures will be prepared and investigated to separate the processes occurring during contact firing. Die Ergebnisse werden zur erfolgreichen Herstellung solarzelle dissertation Solarzelle mit einem moderat dotierten Emitter mit einem Serienwiderstand von 0. This measurement tool will be useful to study the kinetics of sintering processes in fast contact firing sequences.

Die elektrische Kontaktbildung ist Inhalt des Kapitels 5. The model will be used to predict suitable substitutes for lead. Mechanisms, Models and Applications Home.

Thick Film Metallisation of Crystalline Silicon Solar Cells : Mechanisms, Models and Applications

Furthermore, lead and cadmium free silver and aluminium thick film pastes for the metallisation of solar cells are solarzelle dissertation. Part Solarzelle dissertation summarises the development of lead free thick film pastes. After a review of existing hypotheses the basic metal semiconductor fundamentals are used to simulate the properties of a silver – silicon thick film contact.

The pastes are commercialised by the project partner Metalor. Typical characterisation methods, used throughout this work, are introduced and applied.

Thick film metallisation is the predominant technology in photovoltaic industry for contacting solar cells. Mit Hilfe von grundlegenden Metall-Halbleiter Gleichungen werden die Eigenschaften des Silberdickfilmkontakts simuliert und die Ergebnisse mit experimentellen Daten verglichen.

In Kapitel 6 werden die elektrischen Eigenschaften des eingebrannten Silber-Dickfilmkontakts untersucht. Des Weiteren werden blei- und cadmiumfreie Silber- und Aluminium-Dickfilmpasten zur Metallisierung von Solarzellen entwickelt.

Im dritten Solarzelle dissertation wird die Entwicklung von bleifreien Dickfilmpasten solarzelle dissertation. Der erste Teil handelt von der Industriesolarzelle im Allgemeinen. After a brief introduction in glass theory, fabrication, and characterisation in chapter 7 the model of silver thick film contact solarzelle dissertation developed in chapter 5 will be applied to the development of lead free silver thick film pastes.

Finally, the impact of the contact firing process on the cell performance will be investigated. The focus is thereby on the role of lead oxide contained in the glass frit commonly used in silver thick film pastes. This thesis deals with the fundamental understanding of thick film contacts to crystalline silicon solarzelle dissertation cells.

The results of these investigations will lead to a model of contact formation. A new developed solarzelle dissertation method, the in-situ line resistance measurement, will be introduced. In chapter 8 experiments on lead free, glass frit containing aluminium pastes on thin solarzelle dissertation silicon substrates are presented.

The results of these investigations will lead to the successful fabrication of a solar cell with a moderately doped emitter with a series resistance of 0.

Das in Kapitel 5 entwickelte Modell der Silberdickfilmkontaktbildung wird in Kapitel 7 angewendet, um geeignete Alternativen zum Bleioxid zu finden.

The kinetics of the electrical contact formation are studied using the new developed in-situ contact resistance measurement. Solarzelle dissertation Untersuchungen des Silberdickfilmkontaktes auf Solarzellen werden im zweiten Solarzelle dissertation vorgestellt. In dieser Doktorarbeit wird deshalb die Dickfilmmetallisierung von kristallinen Silizium-Solarzellen grundlegend untersucht. Die Kinetik der elektrischen Kontaktbildung wird mit Hilfe der neu entwickelten In-Situ Kontaktwiderstandsmessung studiert.

Solarzelle dissertation thesis is divided into three parts. Diese Arbeit ist in drei Teile unterteilt. The approach of this work is to separate competing processes and to develop models solarzelle dissertation contact formation and electrical conduction.

Beside material induced losses, the major loss mechanisms are related to the thick film metallisation. In chapter 1 this type of solar cell and its fabrication process is introduced. Kapitel werden die Hauptverlustmechanismen in typischen Industriesolarzellen identifiziert und untersucht.

The experiments will be the basis for the development of a successful aluminium thick film paste. In Solarzelle dissertation 1 wird dieser Typ Solarzelle und sein Herstellungsprozess vorgestellt.

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