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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Solar Cell Silicon
Presentation Title Electrodeposition of Solar Grade Silicon on Graphite in Molten CaCl2
Author(s) Huayi Yin, Allen Bard, Donald Sadoway
On-Site Speaker (Planned) Huayi Yin
Abstract Scope A dense p-type photoresponsive Si film was electro-chemically deposited on a graphite foil in molten CaCl2 containing 0.15 wt% nano-SiO2 particles. By tuning the cell voltage and/or current density of electrolysis, the Si deposit of different morphologies and photoresponse can be achieved. A dense Si film can be obtained by an elec-trolysis of a cell voltage from 2.4 to 2.6V or a current density of 3 to 7 mA cm-2. The photoresponse of the prepared dense Si film under 2.4V for 4 hours is ~ 4 mA cm-2. The use of a low-cost graphite substrate and SiO2 precursor to prepare different structured Si paves a facile and controllable way to cut the cost of the Si as well as eliminate the environmental pollution caused by producing photoresponsive Si in current industry.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)


Characterization of Composition, Morphology, and Structure of Disi Raw Sandstones in Jordan
Effect of Magnesium Addition on Removal of Impurities from Silicon by Hydrometallurgical Treatment
Electrodeposition of Solar Grade Silicon on Graphite in Molten CaCl2
Electrodynamic Eddy Current Separation of End-of-Life PV Materials
Evaporation Removal of Boron in Molten Silicon Using Reactive Fluxes
Influence of Oxygen Content on the Wettability of Silicon on Graphite
Investigation on Quartz Crucibles for Monocrystalline Silicon Ingots for Solar Cells
Particle Separation in Silicon Ingot Casting Using AC Magnetic Field
Phase Analysis of the Si-O2 System
Study on Producing Solar Grade Silicon by Carbothermal Reduction of Andalusite Ore
Study on the Segregation Behavior of Impurities during Solvent Refining Process
Topological Impurity Segregation at Faceted Silicon Grain Boundaries

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