Program 2010 M 894.47 Kb

This symposium shall concentrate on chalcogenide photovoltaic materials such as CdM (M=S,Se,Te), CuMX2 (M=Al,In,Ga and X=S,Se,Te) and related ones such as Cu2ZnSnS4. The aspects treated in this symposium range from material growth and properties up to material application in devices. In connection with above chalcogenide compounds, relevant materials used in devices in conjunction, such as n- and p-type transparent conductive materials are treated as well.

Scope:
Chalcogenide semiconductors, such as copper indium gallium diselenide (Cu(In,Ga)Se2; CIGS), cadmium sulfide (CdS) and cadmium telluride (CdTe), together with transparent conducting oxides, are the critical materials for today’s leading thin-film photovoltaic technologies. Progress is continuously made both in terms of small cell efficiencies (with best thin-film cell performances of 16.5 and 19.9 % obtained for CdTe- and CIGS-based cells) and in terms of larger area module efficiencies (over 12 and 11 % for CIGS and CdTe-based ones, respectively).

Chalcogenide semiconductors are also considered as promising candidates for next generation photovoltaics in the form of tandem cells and nanostructured cells. Here the scientific aspects are among others sub-bandgap transparency, doping ability and nanoparticle stability.

Since the beginning of this century, Chalcogenide based solar cells have evolved from a development stage to a fast growing industry. Yet many material issues related to defects or interfaces are unresolved, where focus is both on characterization techniques and fundamental understanding. Although chalcogenide photovoltaic materials are already used in commercial products, their growth and thin film preparation remain a subject of vivid research. Low-cost preparation techniques as well as high-speed deposition are addressed in several laboratories in the world.

Because the emphasis is on Materials R&D, relevant to PV, rather than on PV technology, the symposium will complement rather than overlap with the various PV Solar Cell Specialist and Technology Conferences.

The symposium is part of the successful biannual series of E-MRS symposia (1999, 2000, 2002, 2004, 2006, 2008) on "Chalcogenide semiconductors for photovoltaics", complemented by MRS Spring Meeting ones on "II-VI Compound Semiconductor Photovoltaic Materials", in 2001, 2003, 2005, 2007, 2009. The symposium will be organized along similar lines, i.e., with ample time for both structured and free discussion sessions, centred on the main topics of the symposium. A satellite tutorial on specific topics of relevance for young scientists will be organized in connection with the symposium.

Hot topics to be covered by the symposium:
• Novel processes for film synthesis
• Thin film growth models from theory and experiment
• Defect physics and device analysis
• Interfaces and grain boundaries
• Chalcogenide window&buffer layers
• Issues of large area film manufacturing
• Alternative chalcogenides
• Material combinations & hetero-structures, Nano-structured composites
• Defect chemistry, doping of chalcogenide semiconductors

List of invited speakers (confirmed):
- M. Edoff, Uppsala University
- A. Compaan Univ. Toledo
- T. Minemoto, Ritsumeikan University
- E. Mellikov, Uni. Tallin
- A. Tiwari, EMPA
- N. Naghavi, IRDEP
- Y. Yan, NREL
- Enzenroth, Colorado Uni.
- A. Bosio, University of Parma, INFM
- A. Klein, U. Darmstadt
- H- W. Schock, Helmholtz Zentrum

Accepted contributed papers will be published in Thin Solid Films.

Sponsors:

Symposium organizers:

Jean Francois Guillemoles
IRDEP
Ecole Nationale Supérieure de Chimie de Paris
France
Tel: +33 1 5542 6381
Fax:+33 1 4427 6750
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Roland Scheer
Helmholtz Zentrum Berlin für Materialien und Energie
Glienicker Strasse 100
14109 Berlin
Germany
Tel: +49 30 8062 2235
Fax:+49 30 8062 3173
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Alessandro Romeo
Universita' di Verona
Ca' Vignal 1
Strada Le Grazie 15
37134 Verona
Italy
Office:+39 045 8027974
Lab:   +39 045 8027808
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Akira Yamada
Department of Physical Electronics
Tokyo Institute of Technology
2-12-1-S9-10 O-okayama, Meguro-ku
Tokyo 152-8552
Japan
Tel: +81 3 5734 2698
Fax:+81 3 5734 2897
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