Heterojunction Solar Cells (a-Si/c-Si) PDF Download
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Author: Thomas Mueller
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832522913
Category : Technology & Engineering
Languages : en
Pages : 280
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Book Description
The main focus of the present work is related to the optimization of heterojunction solar cells. The key roles in obtaining high efficient heterojunction solar cells are mainly the plasma enhanced chemical vapor deposition of very low defect layers, and the sufficient surface passivation of all interfaces. In heterojunction solar cells, the a-Si: H/c-Si hetero-interface is of significant importance, since the hetero-interface characteristics directly affect the junction properties and thus solar cell efficiency. In this work, the deposition and film properties of various hydrogenated amorphous silicon alloys, such as a-SiC: H, a-SiO_x: H, and muc-Si: H (standard a-Si: H is used as reference), are employed. Special attention is paid to (i) the front and back surface passivation of the bulk material by high-quality wide-gap amorphous silicon suboxides (a-SiO_x: H), and (ii) the influence of wide-gap high-quality a-Si- and muc-Si-based alloys for use as emitter and back-surface-
Author: Thomas Mueller
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832522913
Category : Technology & Engineering
Languages : en
Pages : 280
Get Book Here
Book Description
The main focus of the present work is related to the optimization of heterojunction solar cells. The key roles in obtaining high efficient heterojunction solar cells are mainly the plasma enhanced chemical vapor deposition of very low defect layers, and the sufficient surface passivation of all interfaces. In heterojunction solar cells, the a-Si: H/c-Si hetero-interface is of significant importance, since the hetero-interface characteristics directly affect the junction properties and thus solar cell efficiency. In this work, the deposition and film properties of various hydrogenated amorphous silicon alloys, such as a-SiC: H, a-SiO_x: H, and muc-Si: H (standard a-Si: H is used as reference), are employed. Special attention is paid to (i) the front and back surface passivation of the bulk material by high-quality wide-gap amorphous silicon suboxides (a-SiO_x: H), and (ii) the influence of wide-gap high-quality a-Si- and muc-Si-based alloys for use as emitter and back-surface-
Author: Fay-Cooper Cole
Publisher:
ISBN:
Category : Anthropology
Languages : en
Pages : 678
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Book Description
Author: Maurice H. Francombe
Publisher: Elsevier
ISBN: 1483103307
Category : Science
Languages : en
Pages : 262
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Book Description
Physics of Thin Films: Advances in Research and Development primarily deals with the influence of ions or optical energy on the deposition, properties, and etching on thin films. The book is a collection of five articles, with one article per chapter. Chapter 1 covers ionized cluster beam deposition; epitaxy; and film-formation mechanism. Chapter 2 discusses the activated reactive evaporation process; the deposition of refractory compounds; the role of plasma in the process; and its applications. Chapter 3 focuses on ion-beam processing of optical thin films; ion sources and ion-surface interactions; and the different kinds of bombardment involved. Chapter 4 deals with laser induced etching - its mechanisms, methods, and applications. Chapter 5 talks about contacts to GaAs devices; Fermi-level pinning; and heterojunction contacts. The book is recommended for physicists and engineers in the field of electronics who would like to know more about thin films and the progresses in the field.
Author: Thomas Lincoln Casey
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 514
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Book Description
Records of meetings 1808-1916 in v. 11-27.
Author: Jochen Fricke
Publisher: John Wiley & Sons
ISBN: 3527673601
Category : Technology & Engineering
Languages : en
Pages : 470
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Book Description
An in-depth understanding of energy technology, sources, conversion, storage, transport and conservation is crucial for developing a sustainable and economically viable energy infrastructure. This need, for example, is addressed in university courses with a special focus on the energy mix of renewable and depletable energy resources. Energy makes our lives comfortable, and the existence of amenities such as heaters, cars, warm water, household appliances and electrical light is characteristic for a developed economy. Supplying the industrial or individual energy consumer with energy 24 hours a day is a non-trivial challenge, especially in times where the energy is coming from very diverse resources such as oil, gas, nuclear fuels, wind, sun, or waves. This book gives physics, chemistry, engineering, and materials science students insights in the basics of energy and energy technology. It was developed along a successful course for advanced bachelor or graduate students and is written in a didactic style. The problems and solutions at the end of each chapter are ideal for exams and make self-study easy. Topics covered include energy from fossil and nuclear fuels, renewable sources, energy transport, storage, and conservation.
Author: Chris Collins
Publisher: Oxford University Press
ISBN: 0199336873
Category : Language Arts & Disciplines
Languages : en
Pages : 281
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Book Description
Imposters are third person DPs that are used to refer to the speaker/writer or addressee, such as : (i) Your humble servant finds the time before our next encounter very long. (ii) This reporter thinks that the current developments are extraordinary. (iii) Daddy will be back before too long. (iv) The present author finds the logic of the reply faulty. This volume explores verbal and pronominal agreement with imposters from a cross-linguistic perspective. The central questions for any given language are: (a) How do singular and plural imposters agree with the verb? (b) When a pronoun has an imposter antecedent, what are the phi-features of the pronoun? The volume reveals a remarkable degree of variation in the answers to these questions, but also reveals some underlying generalizations. The contributions describe imposters in Bangla, Spanish, Albanian, Indonesian, Italian, French, Romanian, Mandarin and Icelandic.
Author:
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 408
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Book Description
The American Journal of Mathematics publishes research papers and articles of broad appeal covering the major areas of contemporary mathematics.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 692
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Book Description
Author: Albert Sutton Richey
Publisher:
ISBN:
Category : Electric railroads
Languages : en
Pages : 824
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Book Description
Elektrische Traktion.
Author: Sili Recio
Publisher: Denene Millner Books/Simon & Schuster Books for Young Readers
ISBN: 1534461795
Category : Juvenile Fiction
Languages : en
Pages : 32
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Book Description
The colors of Hispaniola burst into life in this striking, evocative debut picture book that celebrates the joy of being Dominican. If Dominican were a color, it would be the sunset in the sky, blazing red and burning bright. If Dominican were a color, it’d be the roar of the ocean in the deep of the night, With the moon beaming down rays of sheer delight. The palette of the Dominican Republic is exuberant and unlimited. Maiz comes up amarillo, the blue-black of dreams washes over sandy shores, and people’s skin can be the shade of cinnamon in cocoa or of mahogany. This exuberantly colorful, softly rhyming picture book is a gentle reminder that a nation’s hues are as wide as nature itself.
