Surface Passivation of Industrial Crystalline Silicon Solar Cells

Surface Passivation of Industrial Crystalline Silicon Solar Cells PDF

Author: Joachim John

Publisher: Institution of Engineering and Technology

Published: 2018-07-31

Total Pages: 289

ISBN-13: 1785612468

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This timely, comprehensive work on solar cell surface passivation will collect and convey the scientific and technological progress provided by universities, research institutes and companies to implement dielectric passivation layers into the solar cell manufacturing process for c-Si solar cells. With a focus on industrial manufacturing it will comprehensively cover all promising techniques and describe the process from material research to full production implementation of dielectric layers for silicon solar cell passivation.

Silicon Heterojunction Solar Cells

Silicon Heterojunction Solar Cells PDF

Author: W.R. Fahrner

Publisher: Trans Tech Publications Ltd

Published: 2006-08-15

Total Pages: 208

ISBN-13: 3038131024

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The world of today must face up to two contradictory energy problems: on the one hand, there is the sharply growing consumer demand in countries such as China and India. On the other hand, natural resources are dwindling. Moreover, many of those countries which still possess substantial gas and oil supplies are politically unstable. As a result, renewable natural energy sources have received great attention. Among these, solar-cell technology is one of the most promising candidates. However, there still remains the problem of the manufacturing costs of such cells. Many attempts have been made to reduce the production costs of “conventional” solar cells (manufactured from monocrystalline silicon using diffusion methods) by instead using cheaper grades of silicon, and simpler pn-junction fabrication. That is the ‘hero’ of this book; the heterojunction solar cell.

High-Efficiency Crystalline Silicon Solar Cells

High-Efficiency Crystalline Silicon Solar Cells PDF

Author: Eun-Chel Cho

Publisher: MDPI

Published: 2021-01-06

Total Pages: 90

ISBN-13: 3039436295

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This book is composed of 6 papers. The first paper reports a novel technique for the selective emitter formation by controlling the surface morphology of Si wafers. Selective emitter (SE) technology has attracted renewed attention in the Si solar cell industry to achieve an improved conversion efficiency of passivated-emitter rear-contact (PERC) cells. In the second paper, the temperature dependence of the parameters was compared through the PERC of the industrial-scale solar cells. As a result of their analysis, PERC cells showed different temperature dependence for the fill factor loss as temperatures rose. The third paper reports the effects of carrier selective front contact layer and defect state of hydrogenated amorphous silicon passivation layer/n-type crystalline silicon interface. The results demonstrated the effects of band offset determined by band bending at the interface of the passivation layer and carrier selective front contact layer. In addition, the nc-SiOx: H CSFC layer not only reduces parasitic absorption loss but also has a tunneling effect and field-effect passivation. The fourth paper reports excimer laser annealing of hydrogenated amorphous silicon film for TOPCon solar cell application. This paper analyzes the crystallization of a-Si:H via excimer laser annealing (ELA) and compared this process with conventional thermal annealing. The fifth paper reports the contact mechanism between Ag–Al and Si and the change in contact resistance (Rc) by varying the firing profile. Rc was measured by varying the belt speed and peak temperature of the fast-firing furnace. The sixth paper reports a silicon tandem heterojunction solar cell based on a ZnO/Cu2O subcell and a c-Si bottom subcell using electro-optical numerical modeling. The buffer layer affinity and mobility together with a low conduction band offset for the heterojunction are discussed, as well as spectral properties of the device model.

High Efficiency Silicon Solar Cells

High Efficiency Silicon Solar Cells PDF

Author: Martin A. Green

Publisher: Trans Tech Publications Ltd

Published: 1987-01-01

Total Pages: 240

ISBN-13: 3035739641

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The early chapters comprehensively review the optical and transport properties of silicon. Light trapping is described in detail. Limits on the efficiency of silicon cells are discussed as well as material requirements necessary to approach these limits. The status of current approaches to passifying surfaces, contacts and bulk regions is reviewed. The final section of the book describes the most practical approaches to the fabrication of high-efficiency cells capable of meeting the efficiency targets for both concentrated and non-concentrated sunlight, including a discussion of design and processing approaches for non-crystalline silicon.

New Perspectives on Surface Passivation: Understanding the Si-Al2O3 Interface

New Perspectives on Surface Passivation: Understanding the Si-Al2O3 Interface PDF

Author: Lachlan E. Black

Publisher: Springer

Published: 2016-04-15

Total Pages: 222

ISBN-13: 3319325213

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The book addresses the problem of passivation at the surface of crystalline silicon solar cells. More specifically, it reports on a high-throughput, industrially compatible deposition method for Al2O3, enabling its application to commercial solar cells. One of the main focus is on the analysis of the physics of Al2O3 as a passivating dielectric for silicon surfaces. This is accomplished through a comprehensive study, which moves from the particular, the case of aluminium oxide on silicon, to the general, the physics of surface recombination, and is able to connect theory with practice, highlighting relevant commercial applications.

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