| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
Processing Materials for Properties
|
| Presentation Title |
In Search of Rapid Processing Routes for CIGS Photovoltaic Absorber Materials |
| Author(s) |
Carelyn E Campbell |
| On-Site Speaker (Planned) |
Carelyn E Campbell |
| Abstract Scope |
Rapid processing of the α-Cu(In,Ga)Se<SUB>2</SUB> (CIGS) photovoltaic absorber material is critical for making these solar materials cost-effective. The current processing times must be reduced to less than 2 minutes, while maintaining optimum material properties. Exploration of novel processing routes within this complex system requires combining CALPHAD-based thermodynamic and diffusion mobilities descriptions. Using these multicomponent descriptions enables prediction of reaction pathways for prospective processing sequences. Preliminary thermodynamic and diffusion mobility descriptions for the Cu-In-Ga-Se system will be presented. The diffusion mobility descriptions are derived from both measured unary, binary and ternary tracer, intrinsic and chemical diffusion data and experimentally derived activation energies. The diffusion mobility descriptions are then used to simulate a wide range of model reactions. These simulations provide some insights into potential processing routes with significantly lower processing times. |
| Proceedings Inclusion? |
Definite: A CD-only volume |