Preparation of Solar Grade Silicon Precursor by Silicon Dioxide Electrolysis in Molten Salts

2015 ◽  
pp. 209-217
Author(s):  
Liangxing Li ◽  
Jinzhao Guan ◽  
Aimin Liu ◽  
Zhongning Shi ◽  
Michal Korenko ◽  
...  
Keyword(s):  
Silicon Dioxide ◽  
Molten Salts ◽  
Solar Grade Silicon ◽  
Grade Silicon

Preparation of Solar Grade Silicon Precursor by Silicon Dioxide Electrolysis in Molten Salts

2015 ◽  
pp. 209-217
Author(s):  
Liangxing Li ◽  
Jinzhao Guan ◽  
Aimin Liu ◽  
Zhongning Shi ◽  
Michal Korenko ◽  
...  
Keyword(s):  
Silicon Dioxide ◽  
Molten Salts ◽  
Solar Grade Silicon ◽  
Grade Silicon

scholarly journals Electrodeposition of crystalline silicon films from silicon dioxide for low-cost photovoltaic applications

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Xingli Zou ◽  
Li Ji ◽  
Jianbang Ge ◽  
Donald R. Sadoway ◽  
Edward T. Yu ◽  
...  
Keyword(s):  
Silicon Dioxide ◽  
Silicon Wafer ◽  
High Purity ◽  
Crystalline Silicon ◽  
Low Cost ◽  
Silicon Films ◽  
Silicon Solar Cells ◽  
Solar Grade Silicon ◽  
Photovoltaic Applications ◽  
Grade Silicon

AbstractCrystalline-silicon solar cells have dominated the photovoltaics market for the past several decades. One of the long standing challenges is the large contribution of silicon wafer cost to the overall module cost. Here, we demonstrate a simple process for making high-purity solar-grade silicon films directly from silicon dioxide via a one-step electrodeposition process in molten salt for possible photovoltaic applications. High-purity silicon films can be deposited with tunable film thickness and doping type by varying the electrodeposition conditions. These electrodeposited silicon films show about 40 to 50% of photocurrent density of a commercial silicon wafer by photoelectrochemical measurements and the highest power conversion efficiency is 3.1% as a solar cell. Compared to the conventional manufacturing process for solar grade silicon wafer production, this approach greatly reduces the capital cost and energy consumption, providing a promising strategy for low-cost silicon solar cells production.

Study of the electrical properties of  Cz p-type solar-grade silicon wafers against the high-temperature processes

2021 ◽  
Vol 127 (6) ◽  
Author(s):  
Mohamed Maoudj ◽  
Djoudi Bouhafs ◽  
Nacer Eddine Bourouba ◽  
Abdelhak Hamida-Ferhat ◽  
Abdelkader El Amrani
Keyword(s):  
High Temperature ◽  
Electrical Properties ◽  
Silicon Wafers ◽  
Solar Grade Silicon ◽  
High Temperature Processes ◽  
Grade Silicon ◽  
P Type

Improving solar grade silicon by controlling extended defect generation and foreign atom defect interactions

2009 ◽  
Vol 96 (1) ◽  
pp. 207-220 ◽  
Author(s):  
H. J. Möller ◽  
T. Kaden ◽  
S. Scholz ◽  
S. Würzner
Keyword(s):  
Solar Grade Silicon ◽  
Extended Defect ◽  
Foreign Atom ◽  
Defect Generation ◽  
Grade Silicon ◽  
Defect Interactions

LIBS for the Analysis of Metallurgical and Solar Grade Silicon

2011 ◽  
Vol 324 ◽  
pp. 324-327 ◽  
Author(s):  
Sarah Darwiche ◽  
Malek Benmansour ◽  
Nir Eliezer ◽  
Daniel Morvan
Keyword(s):  
Chemical Characterization ◽  
Laser Induced Breakdown Spectroscopy ◽  
Solar Grade Silicon ◽  
Photovoltaic Panels ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Elemental Chemical Analysis ◽  
Boron Analysis ◽  
Grade Silicon

Laser-induced breakdown spectroscopy (LIBS) has been employed for the fast and reliable chemical characterization of silicon used for the photovoltaic industry. Silicon for photovoltaic panels is subject to certain constraints on its purity, and notably must contain low concentration of boron. The use of LIBS could be advantageous because it allows rapid and simultaneous multi-elemental chemical analysis of silicon without any sample preparation. LIBS was applied to boron analysis and a detection limit of 0.23 ppmw was found for optimized gas and pressure conditions.

Defining Terms for Climate Literacy

2021 ◽  
Author(s):  
Katie Singer
Keyword(s):  
Supply Chain ◽  
Energy Use ◽  
Internet User ◽  
Solar Panels ◽  
Solar Grade Silicon ◽  
The Public ◽  
Digital Footprint ◽  
Carbon Neutrality ◽  
Grade Silicon ◽  
Climate Literacy

<div> </div><div>To move forward with substantial, constructive actions that reduce overall consumption and emissions, the public, scientists and policymakers need agreement about our terms. Terms like "sustainability," "zero-emissions" and "carbon-neutrality" tend to focus on a device or vehicle's energy use and emissions during operation--and to exclude energy use and emission during extraction, smelting, manufacturing and recycling or discard. What do such exclusions mean for e-vehicles, smartphones and solar panels? How can we encourage learning about and reducing electronics' true costs? Katie Singer will describe the process involved in manufacturing electronic-grade silicon (similar to solar-grade silicon), and propose that every Internet user learn the international supply chain of one substance (of 1000+) in their device. She will also propose ways to counterbalance a digital footprint. </div>

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