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Dissertations / Theses on the topic 'Polycrystalline films'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Cooke, Michael D. "Magnetostrictive properties of polycrystalline iron cobalt films." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340249.

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2

Solovai, M. M. "Phase tomography of the polycrystalline of blood films." Thesis, БДМУ, 2022. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/19684.

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3

Brunson, K. M. "Characterization of semi-insulating polycrystalline silicon." Thesis, University of Bradford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379835.

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4

Castano, Fernando J. "Structure and thermo-magnetic properties of amorphous thin films and multilayers." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267189.

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5

Abbott, Patrick Roland. "The Effect of Average Grain Size on Polycrystalline Diamond Films." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3164/.

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The work function of hydrogen-terminated, polycrystalline diamond was studied using ultraviolet photoelectron spectroscopy. Polycrystalline diamond films were deposited onto molybdenum substrates by electrophoresis for grain sizes ranging from 0.3 to 108 microns. The work function and electron affinity were measured using 21.2 eV photons from a helium plasma source. The films were characterized by x-ray photoelectron spectroscopy to determine elemental composition and the sp2/sp3 carbon fraction. The percentage of (111) diamond was determined by x-ray diffraction, and scanning electron microsc

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6

Locke, Christopher William. "Stress-Strain Management of Heteroepitaxial Polycrystalline Silicon Carbide Films." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3211.

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Silicon carbide (SiC) is one of the hardest known materials and is also, by good fortune, a wide bandgap semiconductor. While the application of SiC for high-temperature and high-power electronics is fairly well known, its utility as a highly robust, chemically-inert material for microelectrical mechanical systems (MEMS) is only beginning to be well recognized. SiC can be grown on both native SiC substrates or on Si using heteroepitaxial growth methods which affords the possibility to use Si micromachining methods to fabricate advanced SiC MEMS devices. The control of film stress in heteroepi

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7

Hajjar, Jean-Jacques Joseph. "Characterization of chemical vapor deposited polycrystalline silicon thin films." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15006.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1986.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING<br>Bibliography: leaves 134-139.<br>by Jean-Jacques Joseph Hajjar.<br>M.S.

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8

Iverson, Ralph Benhart. "Crystallization in self-implanted polycrystalline silicon-on-insulator films." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/32570.

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9

Zhao, Shulai. "Characterization of the Electrical Properties of Polycrystalline Diamond Films." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1394810346.

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10

Bremer, Imke [Verfasser]. "Polycrystalline films of microporous materials on different substrates / Imke Bremer." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2014. http://d-nb.info/1049297180/34.

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11

Hassan, Israr-Ul. "Biased enhanced nucleation of CVD diamond films." Thesis, Manchester Metropolitan University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369078.

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12

Mackay, Ian. "Thin film electroluminescence /." Online version of thesis, 1989. http://hdl.handle.net/1850/10551.

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13

Attygalle, Muthuthanthrige Lilani C. "Theoretical modeling of polycrystalline thin-film photovoltaics /." Connect to full text in OhioLINK ETD Center, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1204144362.

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14

Chen, Hon-Wen James. "Crystal orientation of polycrystalline diamond tip array /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17687.pdf.

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15

Straub, Axel Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Polycrystalline silicon thin-film solar cells on glass by ion-assisted deposition." Awarded by:University of New South Wales. School of Electrical Engineering and Telecommunications, 2005. http://handle.unsw.edu.au/1959.4/22435.

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Polycrystalline silicon (pc-Si, grain size > 1??m, no amorphous tissue) on glass is an interesting material for thin-film solar cells due to the low costs, the abundance and the non-toxic character of Si, and the properties of pc-Si like long-term stability and lateral conductance. Glass as supporting material significantly complicates the fabrication process as it limits the thermal budget and the maximum temperature. In this work, the feasibility of forming large-grained pc-Si thin-film solar cells on glass by ion-assisted deposition (IAD) on aluminium-induced crystallisation (AIC) seed laye

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16

Schneider, Jens Michael. "Nucleation and growth during the formation of polycrystalline silicon thin films." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=97919525X.

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17

Yoo, Seunghyup. "Organic solar cells based on liquid crystalline and polycrystalline thin films." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1246%5F1%5Fm.pdf&type=application/pdf.

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18

Ring, Kenneth M. "Intrinsic and substrate dependent properties of polycrystalline barium titanate thin films /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p9952670.

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19

Cramp, Nicholas Charles. "Characterisation of interface spin clusters in polycrystalline exchange bias thin films." Thesis, University of York, 2013. http://etheses.whiterose.ac.uk/6578/.

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A study of exchange bias systems has been made focusing on the characteristics of the interfacial spin clusters found in-between the bilayers. The materials studied were primarily IrMn (10nm) / CoFe (2nm) thin films of varying grain sizes. They were selected as the bulk properties have already been well characterised and they exhibit the effects being looked for. A combination of vibrating sample magnetometry and electron microscopy has been used to investigate the nature of the interfacial spin clusters. Measurements were selected which specifically highlight the properties of the clusters. T

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20

Tsoulka, Polyxeni. "Local inhomogeneities in polycrystalline wide band gap Culn1-xGaxSe2 thin-films." Thesis, Nantes, 2019. http://www.theses.fr/2019NANT4009/document.

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Les cellules solaires à base de CuIn1-xGaxSe2 sont des dispositifs en couches minces permettant d’atteindre des hauts rendements de conversion photovoltaïque. Le CuIn1-xGaxSe2 est un absorbeur permettant d’adapter l’énergie de la bande interdite de la cellule solaire en changeant la teneur en Ga. Le rendement record de conversion photovoltaïque actuel a été obtenu pour x~0.3, alors que la théorie indique qu’il devrait être obtenu pour un x~0.7. L’origine de cette limite pour x élevé reste en débat. Dans cette thèse, on étudie deux origines liées aux interfaces internes de CuIn1-xGaxSe2 à savoi

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21

Kung, Kenneth Ting-Yuan. "Polycrystalline Si thin films and devices : I. Seed selection through ion channeling II. Thin-film transistors." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/69699.

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22

Archbold, Martin David. "Polycrystalline CdS thin films and their role in CdS/CdTe photovoltaic devices." Thesis, Durham University, 2007. http://etheses.dur.ac.uk/2138/.

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This thesis represents a systematic study of polycrystalline CdS thin films and their role as an n-type window layer in CdS/CdTe photovoltaic devices. This work encompasses the growth of CdS, primarily by the solution deposition method, and the subsequent characterisation of these films in isolation and as part of thin film CdS/CdTe device structures. A novel solution deposition approach was devised in order to grow high quality CdS thin films. Structural, electrical and chemical characterisation methods applied to these have shown that in their as-grown state they are highly oriented (in eith

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23

Ekanayake, Gayani. "Polycrystalline silicon thin films by aluminium induced crystallisation for solar cell applications." Thesis, London South Bank University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435201.

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24

Bhattacharyya, Somnath. "Investigation of intergranular glassy films in polycrystalline ceramics using Transmission Electron Microscopy." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-25820.

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25

Effertz, Christian [Verfasser]. "Organic molecular crystals: from thin-films to devices : investigation of thin-film formation and electronic transport properties of polycrystalline perylene films / Christian Effertz." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2011. http://d-nb.info/1018191550/34.

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26

Judson, Elizabeth Ann. "An analysis of preferred orientation in YBa₂ Cu₃ O₇ ₋ ₓ superconducting films deposited by CVD on single and polycrystalline substracts". Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/8562.

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27

Lee, Jinwoo 1973. "Metastability of copper indium gallium diselenide polycrystalline thin film solar cell devices." Thesis, University of Oregon, 2008. http://hdl.handle.net/1794/8588.

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xvi, 117 p. ; ill. (some col.) A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>High efficiency thin film solar cells have the potential for being a world energy solution because of their cost-effectiveness. Looking to the future of solar energy, there is the opportunity and challenge for thin film solar cells. The main theme of this research is to develop a detailed understanding of electronically active defect states and their role in limiting device performance in copper indium gallium diselenide (CIGS) sol

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28

Song, Dengyuan Centre for Photovoltaic Engineering UNSW. "Zinc oxide TCOs (Transparent Conductive Oxides) and polycrystalline silicon thin-films for photovoltaic applications." Awarded by:University of New South Wales. Centre for Photovoltaic Engineering, 2005. http://handle.unsw.edu.au/1959.4/29371.

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Transparent conductive oxides (TCOs) and polycrystalline silicon (poly-Si) thin-films are very promising for application in photovoltaics. It is extremely challenging to develop cheap TCOs and poly-Si films to make photovoltaic devices. The aim of this thesis is to study sputtered aluminum-doped ZnO TCO and poly-Si films by solid-phase crystallization (SPC) for application in low-cost photovoltaics. The investigated aspects have been (i) to develop and characterize sputtered aluminum-doped ZnO (ZnO:Al) films that can be used as a TCO material on crystalline silicon solar cells, (ii) to explore

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29

Rovinelli, Giovanni. "Magnetic, morphological and structural properties of polycrystalline ultrathin cobalt films for organic spintronics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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The opportunity of using the organic molecules in spintronic devices appeared challenging since these materials, having nominally high spin relaxation times, are suitable for coherent spin manipulation. The spin behaviour in these molecular spintronic devices has been demonstrated to strongly depend on the nature of the chemical bonds between the organic molecules and the magnetic electrodes affecting also the magnetic response of both molecular and metallic sides. In particular, the adsorption of an organic molecule on a ferromagnetic layer has been proved to change the local magnetism of a m

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30

Jaramillo, Fernandez Juliana. "Tuning the thermal conductivity of polycrystalline films via multiscale structural defects and strain." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0031/document.

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La compréhension et le contrôle de la conductivité thermique des couches minces polycristallines est fondamentale pour améliorer la performance et la fiabilité des dispositifs micro- et optoélectroniques. Toutefois, une description et un contrôle précis de la performance thermique de ces matériaux bidimensionnels restent une tâche difficile en raison de leur anisotropie et structure hétérogène. En effet, les couches minces obtenues par diverses techniques et avec une large gamme de paramètres de dépôt, sont composées de petites cristallites à l'interface avec le substrat, qui coalescent et évo

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31

Tako, Kingsley Manyo. "Micromagnetic simulation of polycrystalline 2-D thin films using the finite element method." Thesis, Keele University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321698.

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32

Ghimire, Kiran. "Application of Spectroscopic Ellipsometry: From Single Crystal Gd3Ga5O12 to Polycrystalline Perovskite Thin Films." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1513059469763845.

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33

Heath, Jennifer Theresa. "Electronic transitions in the bandgap of copper indium gallium diselenide polycrystalline thin films /." view abstract or download file of text, 2002. http://wwwlib.umi.com/cr/uoregon/fullcit?p3072587.

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Thesis (Ph. D.)--University of Oregon, 2002.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 143-148). Also available for download via the World Wide Web; free to University of Oregon users.

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34

Budnitzki, Michael. "Influence of the environment and alumina coatings on the fatigue degradation of polycrystalline silicon films." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31766.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Pierron, Olivier N.; Committee Member: McDowell, David L.; Committee Member: Neu, Richard W.. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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35

St, Omer Ingrid L. J. "The pressure response of synthetic polycrystalline diamond f ilms /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9737861.

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36

Mora, MaÌrquez AndreÌs Eloy. "TEM characterization of B-doped polycrystalline CVD diamond films correlated with micro PL studies." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396649.

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37

Mongkolnavin, Rattachat. "CVD polycrystalline diamond a novel neutron detector and applications /." Thesis, Online version, 1998. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.481509.

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38

Choi, Jaehwan. "Statistical approach to the elastic property extraction and planar elastic response of polycrystalline thin-films." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092851082.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 156 p.; also includes graphics (some col.). Includes bibliographical references (p. 150-156). Available online via OhioLINK's ETD Center

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39

Snyder, Mark A. "Multiscale approaches for elucidating structure-properties relations of molecular transport in polycrystalline microporous thin films." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 7.89 Mb., 449 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3220803.

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40

Long, Phan The. "Synthesis and characterization of Mn-Doped ZnO sprintronic materials: Polycrystalline ceramics, thin films, and nanostructures." Thesis, University of Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492507.

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Recent theoretical calculations have predicted that ZnO doped with Mn exhibits room-temperature ferromagnetism. This has attracted intensive interest, because of its prospective applications in spintronic devices. However, experimental studies on Mndoped ZnO materials have revealed that their magnetic properties vary from the ferromagnetic through antiferromagnetic and spin-glass to the paramagnetic. This makes the question of the origin of ferromagnetism in Mn-ZnO materials become more complicated.

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41

JAYASEELAN, VIDHYA SAGAR. "STUDY OF POLYCRYSTALLINE DIAMOND THIN FILMS GROWN IN A CUSTOM BUILT ECR PE-CVD SYSTEM." University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin975513169.

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42

Albin, David Scott. "Fabrication and structural, optical, and electrical characterization of multisource evaporated copper-gallium-selenide polycrystalline thin films." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184745.

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Theoretical considerations for the use of chalcopyrite ternary I-III-VI₂ compounds in heterojunction photovoltaic conversion devices are presented, followed by an in-depth study of the structural, optical, and electrical characteristics of multi-source evaporated CuGaSe₂ thin films as determined by processing. Film composition was identified as the primary variable for affecting the microstructure and optical-electrical behavior of the films. Film composition was in turn dependent upon elemental flux rates and substrate related effects. Films deposited on glass and bare alumina substrates were

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43

Wen, Chang Chia, and 張家文. "Micromagnetic Modeling of Ferromagnetic Polycrystalline Films." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/32064185599753584815.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>91<br>We have developed a micromagnetic model to study magnetic domains for nanocrystalline ferromagnetic thin films. We have also provided a numerical simulation to study magnetization reversal processes under cycling magnetic field in this thesis. We have first studied perpendicular recording films and single crystal thin film as well as revisited the conventional Stoner-Wohlfarth model to ensure the accuracy of numerical simulation under periodic boundary condition. Especially, our numerical simulation has shown almost the same results obtained by the c

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44

Chen, Claudine Minnie. "Polycrystalline silicon thin films for photovoltaics." Thesis, 2001. https://thesis.library.caltech.edu/6209/2/Chen_cm_2001.pdf.

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Selective nucleation and solid phase epitaxy offers a low temperature method to fabricate large grain, polycrystalline silicon on foreign substrates. Undoped and highly doped silicon films were nucleated with nickel or indium and annealed at 600°C. Indium nucleated crystallization proceeded by conventional solid phase epitaxy. Undoped silicon had grain sizes of 1-2 µm. With doping, although there was enhancement of the growth rate, the grain size did not increase, since the incubation time correspondingly decreased. The exception was the phosphorus-doped silicon that had a maximum grain

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45

Kang, Che-kuei, and 康哲魁. "Preparation of low temperature polycrystalline silicon films." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/71185459732629040213.

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碩士<br>大同大學<br>光電工程研究所<br>92<br>For the flat panel display application, low temperature poly-crystalline silicon is superior to amorphous silicon in many characteristics. In this thesis, we used excimer laser crystallization (ELC) and rapid thermal crystallization (RTC) to make poly-Si on glass substrate. The ELC technique was also applied to make poly-Si on plastic substrate directly. By used of a layer transfer technique, the ELC and RTC poly-Si films were formed on plastic substrate without degrading the crystallinity. It is because that there is no extra thermal treatment or high corrosive

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46

Wang, Yan-Jun, and 王彥鈞. "Growth and Characterization of Rubrene polycrystalline films." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/09889382787431661067.

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碩士<br>中原大學<br>機械工程研究所<br>104<br>In this study, rubrene polycrystalline films growth from a physical vapor deposition system (with a fixed source temperature of 300℃) were characterized with respect to various substrate temperatures (Tsub = 103 ~ 221℃). The growth behavior of these as-deposited polycrystalline films is confirmed to follow an activated surface-adsorption process with an activation energy EA = 0.69 ± 0.01 eV. Then, the surface morphology and the temporal evolution of the grain size in these polycrystalline films with respect to Tsub are described and discussed. Furthermore, by X-

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47

Bekker, Willem Johannes. "Structural analysis of polycrystalline CuInSe₂ thin films." Thesis, 2010. http://hdl.handle.net/10210/3525.

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M.Sc.<br>CuInSe2 (CIS) is considered to be one of the most promising candidates for high efficiency thin film solar cells. The reaction of metallic alloys to a reactive selenium atmosphere (H2Se/Ar or elemental Se vapour) is a promising growth technique to produce CIS thin films of high crystalline quality. However, up to now, the control of the final film quality has been critically influenced by the loss of material and subsequent formation of detrimental binary phases during the high temperature selenization stages. In this study, it is shown that this phenomenon is strongly related to the

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48

Thompson, Carl V. "Research on Polycrystalline Films for Micro- and Nano-Systems." 2003. http://hdl.handle.net/1721.1/3670.

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Polycrystalline films are used in a wide array of micro- and nano-scale devices, for electronic, mechanical, magnetic, photonic and chemical functions. Increasingly, the properties, performance, and reliability of films in these systems depend on nano-scale structure. In collaborative research with a number of SMA Fellows, Associates, and students, our group is carrying out research focused on probing, modeling and controlling nano-scale structural evolution during both vapor-phase and solid-phase polycrystalline film formation. In particular, high-sensitivity in-situ and real-time stress meas

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49

Chou, Wei-Nien, and 周威年. "Simulation of Microstructure in Two-Dimensional Martensitic Polycrystalline Films." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/27702949224546057562.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>97<br>Our team proposed a framework based on constrained theory, to establish evolution of microstructure in martensitic polycrystalline films. In this theory, the evolution converges by energy restraining gradually. We observed the arrangement of the microstructure of the bottom energy. We study the microstructure according to the arrangement as well as its evolutionary process of polycrystalline, and compute the stress with fast algorithm (FFT). We design a simple model which is two-dimensional two crystals film, and give one angle θ degree rotation to distinguish

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50

Hsu, Yu-Chin, and 徐有欽. "Study on CuInSe2:Sb polycrystalline thin-films Solar Cells." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/04916668442884554991.

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