Dissertations / Theses on the topic 'Back Reflectors'
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Schleussner, Sebastian Michael. "ZrN Back-Contact Reflectors and Ga Gradients in Cu(In,Ga)Se2 Solar Cells." Doctoral thesis, Uppsala universitet, Fasta tillståndets elektronik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-151402.
Full textLewis, Brian Wellington. "Silica nanosphere textured back reflectors for increased absorption in thin film amorphous silicon solar cells." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1476317.
Full textCurtin, Benjamin Michael. "Photonic crystal back-reflectors for light management and enhanced absorption in a-Si:H solar cells." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1468075.
Full textBoesch, Ryan Paul. "SiO₂ nanosphere textured back reflectors for enhanced light trapping in amorphous and nanocrystalline silicon solar cells." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464182.
Full textHammoud, Mohamad. "Etude et conception d'antennes imprimées sectorielles à faibles lobes arrière pour réseau Wi-Fi outdoor maillé." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS032.
Full textIn the frame of outdoor meshed Wi-Fi network operating in the 2.4 GHz frequency band, we conceive sectoral antennas with very low front to back radiation ratio. This should limit co-channel interferences between neighboring base stations. We first study radiating elements in microstrip technology associated with a reflector based on metamaterials. The latter is based on the structure of Sievenpiper, the so-called "mushroom" structure. This structure comprises periodic pattern sprinted on a substrate. Simulations of the dispersion diagram and of the phase of the reflection coefficient, linked to numerous results from the literature, allow us to perform a full-through characterization of these reflectors. We can therefore propose a criterion on the geometry of the patterns bringing the high-impedance frequency band within the forbidden electromagnetic bandgap. The behavior of the overall antenna, radiant element and reflector, exhibits very interesting performances considering bandwidth and radiation lobes. For economic reasons, this structure is not retained and we switch to a simple perfect electric conductor plane. A part of this thesis explores the impact of printed antenna geometry and its associated reflector on the gain and front to back ratio characteristics. We finally choose a loop geometry. This work is achieved with 3D electromagnetic simulations and with outdoor measurements. On-field experiments on a prototype comprising 3 tri-sectoral antennas assembled under a Radome validate and concludes the study
Mokoena, Onthatile Mmathabo. "Conditions for a Successful/Unsuccessful Reintegration Process back to High School : Former Adolescent Mothers’ Recollections/Reflections." Diss., University of Pretoria, 2020. http://hdl.handle.net/2263/78586.
Full textMini Dissertation (MSoSci)--University of Pretoria, 2020.
Sociology
MSoSci
Unrestricted
Hayward, Nathan. "Marine geophysical study of the Eurasian-African plate boundary in the vicinity of Gorringe Bank." Thesis, University of Oxford, 1996. http://ora.ox.ac.uk/objects/uuid:e2ca90ad-c2e3-4495-97da-f5cc8bcf1e74.
Full textComanescu, Anton. "To talk or not to talk: reflections on Central Bank communication from a behavioral perspective." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210078.
Full textDoctorat en Sciences économiques et de gestion
info:eu-repo/semantics/nonPublished
Hill, Christopher Austin. "“But It Was Changing,” “And Now I Can’t Go Back”: Reflections of a Changing Ireland In the Work of Conor McPherson." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274909465.
Full textAttygalle, Dinesh. "Electrochemical Deposition of Transparent Conducting Oxides for Photovoltaic Applications." Connect to full text in OhioLINK ETD Center, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1229464154.
Full textHass, Andrew Wilfred. "Poetics and the philosophy of reflection : with particular attention to W.H. Auden's The sea and the mirror as it reflects back to its predecessors and forward to postmodernism." Thesis, University of Glasgow, 1996. http://theses.gla.ac.uk/3530/.
Full textDahal, Lila R. "Spectroscopic Ellipsometry Studies of Thin Film a-Si:H Solar Cell Fabrication by Multichamber Deposition in the n-i-p Substrate Configuration." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1365202814.
Full text"Optimization of Back Reflectors for Bifacial Photovoltaic Modules." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.53954.
Full textDissertation/Thesis
Masters Thesis Mechanical Engineering 2019
Chen, You-jiun, and 陳宥均. "Efficiency Enhancement of Blue Light-Emitting Diodes with a Back-Surface Reflector." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/48993322446670727247.
Full text國立臺南大學
光電工程研究所
99
Nitride-based light-emitting diodes (LEDs) with a backside reflector combining a SiO2/TiO2 distributed Bragg reflector (DBR) and an Ag mirror were simulated and fabricated. With combining the 3-pair SiO2/TiO2(n=1.47,d=78nm / n=2.09,d=55nm) DBR and an Ag mirror, it was found that we can significantly enhance the 96% reflectance of Ag mirror to 99.1% with an incident angle of 0o. Furthermore, reflectance of the proposed reflector depends slightly on incident light wavelength and the incident angle. With 350-mA current injection, it was found that the output powers were 122, 138, 151, 153, 156, and 158 mW for the LEDs without reflector, with an Al mirror, with 8-pair DBR, with Al+3DBR mirror, with an Ag mirror, and with Ag+3DBR mirror, respectively. After annealing at800oC for 10 min,reflectance of the Ag+3DBR mirror with 1nm Ni capping layer is still 93.5%. TiO2 films deposited from Ti3O5 material have higher refractive index and packing density than from TiO2 material.
Kuang-ChiehLai and 賴光傑. "Improvement of thin film solar cells efficiency by using high light trapping-based back reflector." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/28461660467147585785.
Full textTung, Min Hung, and 冬旻弘. "Investigation and fabrication of GaN-based light-emitting diodes with reflector and heat spreader at the back side of sapphire substrate." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/21680283464131882147.
Full text長庚大學
光電工程研究所
97
In this thesis, we studied and developed the GaN-based light-emitting diodes (LEDs) with reflector and heat spreader at the back side of sapphire substrate. We used the 3H2SO4:1H3PO4 mixture solution at 300℃ to patterned the back side of the sapphire substrate, and then deposited the reflector on the substrate after standard LED fabrication process. Moreover, copper was used for metal via to fill the patterned sapphire substrate by electroplating technique. The intensity of output luminescence (@20 mA) of the LEDs with reflector after lapping and polishing process is 30% higher than that of the conventional one. The LEDs with reflector and patterned sapphire substrate has at least 160% EL intensity increase. Furthermore, with the copper via to fill the patterned sapphire substrate, the LEDs has 220% EL intensity increase when operating at 20 mA and less peak wavelength shift at high injection current; the roll-off current during L-I measurement can achieve at least 300 mA has also been observed. We successfully reduced the joule heating effect, and improved the luminescence efficiency by the copper via to fill the patterned sapphire substrate of the GaN-based LEDs.
Sun, Hua-Chuan, and 孫華顓. "Reflections on International Investment Arbitration and Regulatory Space: Lessons from Chang Hwa Bank and Surfeit Case." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/j54ha2.
Full text國立清華大學
科技法律研究所
106
International investment agreements (hereinafter “IIAs”) protect foreign investors and its investment from host states’ inappropriate intervention, and provide foreign investors both substantial and procedural protection. The investor-to-state dispute settlement mechanism (hereinafter “ISDS”) means foreign investors can settle investment disputes with host state relies on arbitration rather than domestic courts. ISDS mechanisms are very common in IIAs. Because the foreign investors may have concerns to domestic courts and the investment disputes are highly technical, they prefer to settle the disputes through international investment arbitration. However, ISDS mechanisms raise several concerns and critics that ISDS mechanism unduly, improperly affect and constrain the regulatory space of host states, especially when the disputes are related to public health, human right or financial regulation. In 2017, the corporate control fight of Chang Hwa Bank, between Taishin Financial Holdings and Ministry of Finance, is sub judice at Supreme Court. Originally, it seems like a purely domestic disputes. However, Surfeit Harvest Investment Holding, a Singaporean investor, filed this case to international investment arbitration under the Agreement between Singapore and the Separate Customs Territory of Taiwan, Penghu, Kinmen and Matsu on Economic Partnership (ASTEP), then it aroused lots of concerns on procedural issues of international investment arbitration. This article will focus on the procedural issues of international investment arbitration and discuss the influence of regulatory space of host states, and relationship between domestic courts and international investment arbitration tribunals. Also, this article will review and comment on the judgments made by courts in the first and second instance. In the end, this article will analyze and predict the development of the Surfeit case.
Kirunda, Robert. "Unfettering the political mandate: reflections on political prohibition, the world bank’s role in the protection of human rights and the chad – Cameroon pipeline." 2007. http://hdl.handle.net/11394/3752.
Full textAs a case study, the paper analyzes the Bank’s role in the Chad-Cameroon Petroleum Development and Oil Pipeline project (the project) in which the Bank has been involved since the year 2000. The paper presents the lessons, challenges and implications from this protection of human rights.
Smith, Allison R. "Islamophobia, Anti-Semitism, and Censorship: Reflections on Religious and Political Radicalism in John Adams’s The Death of Klinghoffer." 2017. https://scholarworks.umass.edu/masters_theses_2/537.
Full textKirunda, Robert. "Unfettering the Political Mandate: Reflections on Political Prohibition, The World Bankâs Role in the Protection of Human Rights and the Chad â Cameroon Pipeline." Thesis, 2008. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6072_1262739977.
Full text
As a case study, the paper analyzes the Bank&rsquo
s role in the Chad-Cameroon Petroleum Development and Oil Pipeline project (the project) in which the Bank has been involved since the year 2000. The paper presents the lessons, challenges and implications from this protection of human rights.
Stasko, Carly. "A Pedagogy of Holistic Media Literacy: Reflections on Culture Jamming as Transformative Learning and Healing." Thesis, 2009. http://hdl.handle.net/1807/18109.
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