By Sergio Pizzini
At the present time, the silicon feedstock for photovoltaic cells comes from techniques that have been initially built for the microelectronic undefined. It covers virtually ninety% of the photovoltaic marketplace, with mass creation quantity a minimum of one order of significance greater than these dedicated to microelectronics.
However, it truly is difficult to visualize that this type of feedstock (extremely natural yet seriously penalized through its excessive power fee) may possibly stay the single resource of silicon for a photovoltaic marketplace that is in non-stop enlargement, and which has a cumulative development expense in way over 30% within the previous few years. even if reviews recommend that the silicon proportion will slowly reduce within the subsequent 20 years, discovering how to manufacture a selected sunlight grade feedstock in huge amounts, at a in your price range whereas preserving the standard wanted, nonetheless continues to be an important factor. skinny movie and quantum confinement-based silicon cells could be a complementary solution.
Advanced Silicon fabrics for Photovoltaic Applications has been designed to explain the whole prospects of silicon as a multipurpose fabric and covers:
- Physical, chemical and structural homes of silicon
- Production routes together with the promise of good value feedstock for PV applications
- Defect engineering and the function of impurities and defects
- Characterization suggestions, and complex analytical options for metal and non-metallic impurities
- Thin movie silicon and skinny movie sunlight cells
- Innovative quantum results, and 3rd iteration sunlight cells
With contributions from across the world well-known professionals, this e-book supplies a finished research of the cutting-edge of approach applied sciences and fabric houses, crucial for a person attracted to the appliance and improvement of photovoltaics.
Chapter 1 Silicon technology and expertise because the heritage of the present and destiny wisdom Society (pages 1–20): Sergio Pizzini
Chapter 2 approaches (pages 21–78): Bruno Ceccaroli and Sergio Pizzini
Chapter three function of Impurities in sun Silicon (pages 79–125): Gianluca Coletti, Daniel Macdonald and Deren Yang
Chapter four Gettering tactics and the position of prolonged Defects (pages 127–188): Michael Seibt and Vitaly Kveder
Chapter five complicated Characterization options (pages 189–214): Anna Cavallini, Daniela Cavalcoli and Laura Polenta
Chapter 6 complex Analytical recommendations for Solar?Grade Feedstock (pages 215–234): Richard S. Hockett
Chapter 7 Thin?Film Deposition techniques (pages 235–285): J. okay. Rath
Chapter eight Modeling of Thin?Film Deposition approaches (pages 287–310): Carlo Cavallotti
Chapter nine Thin?Film Silicon sun Cells (pages 311–353): J. okay. Rath
Chapter 10 cutting edge Quantum results in Silicon for Photovoltaic purposes (pages 355–391): Zhizhong Yuan, Aleksei Anopchenko and Lorenzo Pavesi
Read Online or Download Advanced Silicon Materials for Photovoltaic Applications PDF
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Extra info for Advanced Silicon Materials for Photovoltaic Applications
A challenge downstream to be addressed is the saturation of silicon with carbon as a consequence of this process. 5 Recovery of By-Products All processes aiming at ultrapure silicon production through volatile silicon precursors generate considerable amounts of by-products. To make silicon volatile for puriﬁcation purposes the silicon atom must be bound to a ligand like hydrogen or a halide atom. After the puriﬁcation, the precursor is decomposed to pure elemental silicon and molecules bound to the ligands through the various reactions described above.
19) ammonium chloride (NH4 Cl) must be sold to the fertilizer industry, which makes use of huge amounts of such and MgCl2 must probably be returned to the magnesium producer from which magnesium powder is purchased. If both ammonium chloride and magnesium metal are produced at the same industrial place a site-closed-loop process can be achieved. The inconvenience is clearly to have a polysilicon or a silane process strongly dependent on one or several foreign processes. 20) AlMF4 is supposed to ﬁnd applications in aluminum foundries.
Landolt B¨ornstein Numerical Data and Functional Relationships in Science and Technology (1989) Volume 22 Semiconductors, Subvolume b, Impurities and Defects Springer Verlag, Berlin. W. Schr¨oter, E. Spieker, and M. Apel (1995) Gettering of metal impurities in silicon Proc. Fifth Workshop on the role of impurities and defects in silicon device processing NRLE/SP-413–8250, 85–92. T. Y. Tan, R. Gaﬁteanu, and U. M. G¨osele (1995) Toward understanding and modeling of impurity gettering in Si Proc. Fifth Workshop on the role of impurities and defects in silicon device processing NRLE/SP-413–8250, 93–100.
Advanced Silicon Materials for Photovoltaic Applications by Sergio Pizzini