scholarly journals Evaluation of impurities in the Brazilian solar grade silicon and LeTID investigations in p-type multi-Si

Author(s):  
Daniel Knob
2021 ◽  
Vol 127 (6) ◽  
Author(s):  
Mohamed Maoudj ◽  
Djoudi Bouhafs ◽  
Nacer Eddine Bourouba ◽  
Abdelhak Hamida-Ferhat ◽  
Abdelkader El Amrani

2012 ◽  
Vol 21 (7) ◽  
pp. 1469-1477 ◽  
Author(s):  
Chiara Modanese ◽  
Maurizio Acciarri ◽  
Simona Binetti ◽  
Anne-Karin Søiland ◽  
Marisa Di Sabatino ◽  
...  

2013 ◽  
Vol 703 ◽  
pp. 58-62 ◽  
Author(s):  
Xian Pei Ren ◽  
Peng Wu ◽  
Shuai Li ◽  
Hao Ran Cheng ◽  
Wen Xiu Gao ◽  
...  

In this paper, we investigated the characterization of a gallium co-doping multicrystalline silicon ingot made of solar-grade silicon purified by metallurgical route. It is shown that the addition of gallium yields a fully p-type ingot and resistivity distribution in the range from 1.2 Ω.cm to1.7 Ω.cm along the full ingot height. Minority carrier lifetime measurements indicate that this material is suitable for the production of solar cells with comparable efficiencies to standard material. In addition, gallium addition in compensated silicon during ingot casting is proved to be very prospective for controlling the resistivity and increasing material yield of ingot.


2011 ◽  
Vol 324 ◽  
pp. 324-327 ◽  
Author(s):  
Sarah Darwiche ◽  
Malek Benmansour ◽  
Nir Eliezer ◽  
Daniel Morvan

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.


2021 ◽  
Author(s):  
Katie Singer

<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>


1979 ◽  
Vol 23 (3) ◽  
pp. 270-277 ◽  
Author(s):  
T. F. Ciszek ◽  
G. H. Schwuttke ◽  
K. H. Yang

Sign in / Sign up

Export Citation Format

Share Document