Download or read book Impact of Solid phase Crystallization of Amorphous Silicon on the Chemical Structure of the Buried Si ZnO Thin Film Solar Cell Interface written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemical interface structure between phosphorus-doped hydrogenated amorphous silicon and aluminum-doped zinc oxide thin films is investigated with soft x-ray emission spectroscopy (XES) before and after solid-phase crystallization (SPC) at 600C. In addition to the expected SPC-induced phase transition from amorphous to polycrystalline silicon, our XES data indicates a pronounced chemical interaction at the buried Si/ZnO interface. In particular, we find an SPC-enhanced formation of Si-O bonds and the accumulation of Zn in close proximity to the interface. For an assumed closed and homogeneous SiO2 interlayer, an effective thickness of (5+2)nm after SPC could be estimated.
Download or read book Issues in Applied Physics 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 3912 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Applied Physics / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Applied Physics. The editors have built Issues in Applied Physics: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Applied Physics in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Applied Physics: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Crystallization of Amorphous Silicon Thin Films Induced by Nanoparticle Seeds written by Taekon Kim and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Crystallization of amorphous Si (a-Si) thin film has received extensive interest for their attractive applications into Si thin film transistors and Si based solar cells. Among various crystallization techniques, Solid phase crystallization (SPC) and Excimer laser crystallization (ELC) were investigated. Firstly, Solid phase crystallization (SPC) of amorphous silicon thin films deposited by the DC magnetron sputtering system with a modification in nucleation step was investigated at low temperature. The thin film consists of polycrystalline nanoparticles embedded in an amorphous matrix which can act as nuclei during crystallization, resulting in a lower thermal energy for the nucleation. The lowering energy barrier for nucleation would shorten the transition time from amorphous into polycrystalline silicon resulting from the reduction of incubation time and also lower the processing temperature spontaneously. In addition, a comprehensive study of the growth mechanism of the sputtered amorphous silicon thin films is presented during annealing. Samples were prepared with various substrate temperatures and RF power in order to optimize the crystallization of a-Si after the deposition. Also, the effects of annealing condition were examined. Low pressure N2 ambient during SPC promoted crystallization of a-Si thin films and the crystallinity. The low pressure annealing had a large impact on the crystallinity and growth behavior of subsequent films.
Download or read book Amorphous and Microcrystalline Silicon Applied in Very Thin Tandem Solar Cells written by Sandra Schicho and published by Forschungszentrum Jülich. This book was released on 2011 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book High rate growth of hydrogenated amorphous and microcrystalline silicon for thin film silicon solar cells using dynamic very high frequency plasma enhanced chemical vapor deposition written by Thomas Zimmermann and published by Forschungszentrum Jülich. This book was released on 2013 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SIMS Study of Elemental Diffusion During Solid Phase Crystallization of Amorphous Silicon written by D. Young and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallization of hydrogenated amorphous silicon (a-Si:H) films deposited on low-cost substrates shows potential for solar cell applications. Secondary ion mass spectrometry (SIMS) was used to study impurity incorporation, hydrogen evolution, and dopant diffusion during the crystallization process.
Download or read book Solar Cells and Modules written by Arvind Shah and published by Springer Nature. This book was released on 2020-07-16 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive introduction to the field of photovoltaic (PV) solar cells and modules. In thirteen chapters, it addresses a wide range of topics including the spectrum of light received by PV devices, the basic functioning of a solar cell, and the physical factors limiting the efficiency of solar cells. It places particular emphasis on crystalline silicon solar cells and modules, which constitute today more than 90 % of all modules sold worldwide. Describing in great detail both the manufacturing process and resulting module performance, the book also touches on the newest developments in this sector, such as Tunnel Oxide Passivated Contact (TOPCON) and heterojunction modules, while dedicating a major chapter to general questions of module design and fabrication. Overall, it presents the essential theoretical and practical concepts of PV solar cells and modules in an easy-to-understand manner and discusses current challenges facing the global research and development community.
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deposition of amorphous silicon thin films and solar cells written by Hans Meiling and published by . This book was released on 1991 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Silicon Recrystallization and Thin film Solar Cell Processes written by Spire Corporation and published by . This book was released on 1978 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book C H N and O in Si and Characterization and Simulation of Materials and Processes written by A. Borghesi and published by Newnes. This book was released on 2012-12-02 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing over 200 papers, this volume contains the proceedings of two symposia in the E-MRS series. Part I presents a state of the art review of the topic - Carbon, Hydrogen, Nitrogen and Oxygen in Silicon and in Other Elemental Semiconductors. There was strong representation from the industrial laboratories, illustrating that the topic is highly relevant for the semiconductor industry. The second part of the volume deals with a topic which is undergoing a process of convergence with two concerns that are more particularly application oriented. Firstly, the advanced instrumentation which, through the use of atomic force and tunnel microscopies, high resolution electron microscopy and other high precision analysis instruments, now allows for direct access to atomic mechanisms. Secondly, the technological development which in all areas of applications, particularly in the field of microelectronics and microsystems, requires as a result of the miniaturisation race, a precise mastery of the microscopic mechanisms.
Download or read book Improving the Stability of Amorphous Silicon Solar Cells by Chemical Annealing written by Nanlin Wang and published by . This book was released on 2006 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous silicon solar cells have been extensively studied. However, it is found that the properties of a-Si:H solar cells degrade upon light illumination, and this limits their application. Recently, it has been shown that this instability is correlated with the presence of SiH2 bonds, and a technique, namely chemical annealing, was suggested to improve the stability of a-Si:H. Although a number of results have been reported, no chemical annealed devices with good quality were reported. In this work, chemical annealing technique was studied to improve the stability of a-Si:H solar cells. It is found that when the annealing was done in hydrogen plasma, the films remained amorphous; in contrast, when in helium plasma, and the annealing time is equal or more than 20 seconds, the films became crystalline. These unusual results show that it is not necessary to have a high hydrogen dilution to obtain nanocrystalline films, and contradict the generally accepted assumption that high hydrogen dilutions are needed to crystallize the amorphous films based on the reactive etching of H ions. Instead, it might be the case that not only the reactive etching effect from the H ions, but also the ion bombardment play a role in crystallizing the amorphous films. Comparable helium plasma annealed a-Si films and non helium plasma annealed a-Si films were produced. Upon light soaking, the chemical annealed films show a much lower degradation in photoconductivity than that of non chemical annealed films. Comparable helium plasma annealed a-Si solar cells and non helium plasma annealed a-Si solar cells were prepared as well. Upon light soaking, the degradation in the most sensitive device factor, the fill factor, showed that chemical annealed devices possess a much better stability than non chemical annealed devices. FTIR data of chemical annealed films provide a much less S1H2 bond content than that of non chemical annealed films. Clearly, it indicates that chemical annealing technique leads to significant improvement in the stability of both films and devices in a-Si:H by reducing the SiH2 bond density inside. Similar results happened in hydrogen plasma annealed films and devices.
Download or read book Amorphous Silicon Materials and Solar Cells written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicon Heterojunction Solar Cell and Crystallization of Amorphous Silicon written by Meijun Lu and published by ProQuest. This book was released on 2008 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the a-Si:H is found to help to achieve high efficiency in c-Si heterojuntion solar cells, it also absorbs short wavelength (
Download or read book Amorphous Thin Films for Solar cell Applications written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amorphous Silicon for Optimized Multi junction Solar Cells written by Rainer Platz and published by . This book was released on 1999 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
