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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Solar Cell Silicon
Presentation Title Three-Dimensional Crystal-Plasticity based Model for Intrinsic Stresses in Multi-Junction Photovoltaic
Author(s) Khaled H. Khafagy , Tarek M. Hatem
On-Site Speaker (Planned) Tarek M. Hatem
Abstract Scope Outstand understanding for intrinsic stresses and defects evolution in photovoltaic devices became an essential part of new developments. In particular, Multi-Junction PV depend on multi-layers structures that may suffer a high dislocations-density as a result of high lattice and thermal mismatch. These defects limit the performance, reliability, and lifetime of PV devices. 

 In the current study, a three-dimensional multiple-slip dislocation-density model, specialized finite-element formulations are used to investigate InGaN growth on Si substrates. The formulation is based on accounting for thermal and intrinsic stresses as a result for different processing conditions and microstructures. Furthermore, the formulation was used to investigate a recently developed technique, embedded void approach (EVA), which can be used to address both the high density of defects and the cracking/bowing of InGaN growth on Si. The current work lays the groundwork for more extensive use of silicon in MJ-PV devices.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Low-cost and Novel Strategy for Inverted Pyramid Arrays Texturing of DWS mc-Si Wafers
A Review of Solar Silicon Recycling
Boron Removal from Ferrosilicon Alloy via Slag Treatment
CRYSTAL GROWTH MECHANISM OF Si IN HYPEREUTECTIC Al-Si MELT DURING THE ELECTROMAGNETIC DIRECTIONAL SOLIDIFICATION
Enhancement of Efficiency in Nanostructured-Si Solar Cells by Employing Doped-graphene Transparent Conductive Electrodes
High Temperature Pressure Filtration Applying for Separation of Silicon and Liquation Agent
Influence of Chemical and Heat Treatment on the Properties of Disi Raw Sandstones in Jordan
Leaching of Indium from ITO Present in Amorphous Silicon Photovoltaic Modules
Removal Impurities from Metallurgical Silicon by Slag Treatment Combined with Acid Leaching
Solar Silicon by Direct Carbothermic Reduction - Review and Outlook
Structure Nature of Boron Removal from Silicon in Slagging Refining: A Raman Spectroscopy and NMR Spectroscopy Study
The Effect of Rapid Heat Treatment on Crystal Defect Evolution and Electrical Properties of the Original High Efficient Polycrystalline Silicon
The Mechanism of Boron Removal from Silicon Alloy by Electric Field Using Slag Treatment
Thermo-Calc of the Phase Diagram of Calcium Silicon (Ca-Si) System
Thermo-Calc of the Phase Diagram of the Fe-Si System
Three-Dimensional Crystal-Plasticity based Model for Intrinsic Stresses in Multi-Junction Photovoltaic
Ultrathin Crystalline Silicon Solar Cell Preparation through Molten Salt Electrolysis

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