EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Transparent Conductive Zinc Oxide

Download or read book Transparent Conductive Zinc Oxide written by Klaus Ellmer and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) belongs to the class of transparent conducting oxides that can be used as transparent electrodes in electronic devices or heated windows. In this book the material properties of, the deposition technologies for, and applications of zinc oxide in thin film solar cells are described in a comprehensive manner. Structural, morphological, optical and electronic properties of ZnO are treated in this review.

Book Growth Etching and Stability of Sputtered ZnO AI for Thin film Silicon Solar Cells

Download or read book Growth Etching and Stability of Sputtered ZnO AI for Thin film Silicon Solar Cells written by Jorj Ian Owen and published by Forschungszentrum Jülich. This book was released on 2011 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Growth and Characterization of ZnO for the Front Contact of Cu In Ga Se2 Solar Cells Using Reactive Sputtering Techniques

Download or read book Growth and Characterization of ZnO for the Front Contact of Cu In Ga Se2 Solar Cells Using Reactive Sputtering Techniques written by Rita Bhatt and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: ZnO window layers for CIGS solar cells are grown with a DC sputtering technique instead of a conventional RF sputtering technique. Transparent window layers and buffer layers are sputtered from the Zn target in the presence of Oxygen. The window layer is doped with Aluminum in order to achieve high electrical conductivity and thermal stability. The effect of different sputtering parameters on the electrical and optical properties of the films is elaborately studied. Sets of annealing experiments are also performed. Combinations of different deposition parameters are examined to design the optimum fabrication conditions. We are able to deposit 85% transparent, Al doped ZnO films having 002-axis orientation and 4e-4 ohm-cm resistivity, which is successfully, used on CIGS solar cells. Resistivity of undoped ZnO buffer layers is varied form 10-2 ohm-cm to unmeasurable by varying the sputtering parameters. The performance of a reactively sputtered window layer and a buffer layer have matched the performance of the RF sputtered ZnO on CIGS solar cells. There has been considerable effort to eliminate Chemical Bath Deposition of the CdS buffer layer from CIS solar cell fabrication. The performance of an undoped DC sputtered ZnO layer is examined on Cd free CIGS solar cells. The ZnO buffer layer is directly sputtered on an underlying CIGS material. The performance of Cd free solar cells is highly susceptible to the presence of Oxygen in the sputtering ambient of the buffer layer deposition [6]. As Oxygen is a growth component in reactive sputtering, the growth mechanisms of the DC-sputtered buffer layer are studied to improve the understanding. The performance of all reactively sputtered ZnO devices matched the values reported in the literature and the results for DC sputtered ZnO on Cd-free solar cells were encouraging.

Book ZnO Thin Films

Download or read book ZnO Thin Films written by Paolo Mele and published by Nova Science Publishers. This book was released on 2019 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Zinc oxide (ZnO) is an n-type semiconductor with versatile applications such as optical devices in ultraviolet region, piezoelectric transducers, transparent electrode for solar cells and gas sensors. This book "ZnO Thin Films: Properties, Performance and Applications" gives a deep insight in the intriguing science of zinc oxide thin films. It is devoted to cover the most recent advances and reviews the state of the art of ZnO thin films applications involving energy harvesting, microelectronics, magnetic devices, photocatalysis, photovoltaics, optics, thermoelectricity, piezoelectricity, electrochemistry, temperature sensing. It serves as a fundamental information source on the techniques and methodologies involved in zinc oxide thin films growth, characterization, post-deposition plasma treatments and device processing. This book will be invaluable to the experts to consolidate their knowledge and provide insight and inspiration to beginners wishing to learn about zinc oxide thin films"--

Book ZnO for Thin Film Solar Cells

Download or read book ZnO for Thin Film Solar Cells written by John A. Anna Selva and published by . This book was released on 1999 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Optimization and Characterization of Transparent Oxide Layers for CIGS Solar Cells Fabrication

Download or read book Optimization and Characterization of Transparent Oxide Layers for CIGS Solar Cells Fabrication written by Qiudi Liu and published by . This book was released on 2007 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we studied the structural, electrical, and optical properties of three different transparent oxides compounds in their thin film forms. These three compounds were aluminum doped zinc oxide (ZnO:Al), indium tin oxide (ITO) and intrinsic zinc oxide (ZnO). These films are a critical part of Cu(In,Ga)Se2 solar cells, as they play the role of the front contact collecting the photo-generated carriers while letting the photons penetrate into the active semiconductor layers. The films were deposited by radio frequency (r.f.) magnetron sputtering on soda lime glass. We investigated the change of the thin film properties in terms of the main deposition parameters: deposition pressure, substrate temperature, and target r.f. power. Similar trends were found for ZnO:Al and ITO, which were correlated with results from the literature. The optical band gap and the conductivity tend to decrease for increased deposition pressure, while they increase for increased substrate temperature or target power. The crystallinity and the surface roughness tend to increase for an increase of all three parameters, even if some parabolic shapes are obtained for some of the properties. For the ZnO films, the optical band gap and the conductivity do not change with the deposition pressure, substrate temperature or target power, while the crystallinity and the surface roughness tend to increase. These results were correlated with references from other research group

Book Using ZnO Ga Thin Films as Front Electrode for Silicon Thin Film Solar Cell

Download or read book Using ZnO Ga Thin Films as Front Electrode for Silicon Thin Film Solar Cell written by Ariyarit Atthaporn and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Impact of Interface Issues in Cu In Ga S Se 2 Thin Film Solar Cells

Download or read book The Impact of Interface Issues in Cu In Ga S Se 2 Thin Film Solar Cells written by 蕭瑾涵 and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book ZnO Cu InGa Se sub 2 Solar Cells Prepared by Vapor Phase Zn Doping

Download or read book ZnO Cu InGa Se sub 2 Solar Cells Prepared by Vapor Phase Zn Doping written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A process for making a thin film ZnO/Cu(InGa)Se.sub. 2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se.sub. 2 layer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Se.sub. 2 layer on the metal back contact on the glass substrate to a temperature range between about 100.degree. C. to about 250.degree. C.; subjecting the heated layer of Cu(InGa)Se.sub. 2 to an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se.sub. 2.

Book Investigation of Light Soaking Effect on Chemical Bath Deposited Zn O S Buffer Layer based Cu In Ga S Se 2 Thin Film Solar Cells

Download or read book Investigation of Light Soaking Effect on Chemical Bath Deposited Zn O S Buffer Layer based Cu In Ga S Se 2 Thin Film Solar Cells written by 曹翔崴 and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Low Pressure Chemical Vapor Deposited Zinc Oxide for Thin Film Silicon Solar Cells Optical and Electrical Properties

Download or read book Low Pressure Chemical Vapor Deposited Zinc Oxide for Thin Film Silicon Solar Cells Optical and Electrical Properties written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent conductive oxides (TCO), such as LPCVD ZnO:B (low pressure chemical vapor deposited zinc oxide doped with boron), play a major role as contacts in thin film silicon photovoltaic solar cells. This document study the "LPCVD ZnO:B layers, from the deposition process to the final application" and focus especially on their electrical and optical properties. This work intended on understanding the physics of the LPCVD ZnO:B film properties in order to efficiently optimize its characteristics to obtain TCO films well suited for thin film solar cell applications. In particular, theoretical models that describe the optical and electrical properties of LPCVD ZnO:B films are determined and verified experimentally.