Дисертації з теми "Plasmonic silicon solar cells"
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Crudgington, Lee. "High-performance amorphous silicon solar cells with plasmonic light scattering." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/390381/.
Повний текст джерелаPaetzold, Ulrich W. [Verfasser]. "Light trapping with plasmonic back contacts in thin-film Silicon solar cells / Ulrich Wilhelm Paetzold." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/103710661X/34.
Повний текст джерелаMorawiec, Seweryn. "Self-assembled Plasmonic Nanostructures for Thin Film Photovoltaics." Doctoral thesis, Università di Catania, 2016. http://hdl.handle.net/10761/3971.
Повний текст джерелаLükermann, Florian [Verfasser]. "Plasmon supported defect absorption in amorphous silicon thin film solar cells and devices / Florian Lükermann." Bielefeld : Universitaetsbibliothek Bielefeld, 2013. http://d-nb.info/1036112136/34.
Повний текст джерелаLi, Xuanhua, and 李炫华. "Plasmonic-enhanced organic solar cells." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/197526.
Повний текст джерелаpublished_or_final_version
Electrical and Electronic Engineering
Doctoral
Doctor of Philosophy
Lal, Niraj Narsey. "Enhancing solar cells with plasmonic nanovoids." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243864.
Повний текст джерелаCao, Zhixiong. "Silver nanoprisms in plasmonic organic solar cells." Thesis, Ecole centrale de Marseille, 2014. http://www.theses.fr/2014ECDM0015/document.
Повний текст джерелаNowadays there has been a strong global demand for renewable and clean energy due to the rapid consumption of non-renewable fossil fuels and the resulting greenhouse effect. One promising solution to harvest clean and renewable energy is to utilize solar cells to convert the energy of sunlight directly into electricity. Compared to their inorganic counterparts, organic solar cells (OSCs) are now of intensive research interest due to advantages such as light weight, flexibility, the compatibility to low-cost manufacturing processes. Despite these advantages, the power conversion efficiency (PCE) of OSCs still has to be improved for large-scale commercialization. OSCs are made of thin film stacks comprising electrodes, electron transporting layer, active polymer layer and hole transporting layer. In this study, we are concerned with PEDOT:PSS layer which is commonly used as a buffer layer between the anodic electrode and the organic photoactive layer of the OSC thin film stack. We incorporated different concentrations of silver nanoprisms (NPSMs) of sub-wavelength dimension into PEDOT:PSS. The purpose is to take advantage of the unique optical properties of Ag MPSMs arisen from localized surface plasmon resonance (LSPR) to enhance the light harvest and the charge generation efficiency by optimizing absorption and scattering of light in OSCs. We found that the key factors controlling the device performance of plasmonic solar cells include not only the optical properties but also the structural and electrical properties of the resulting hybrid PEDOT:PSS-Ag-NPSM-films. On one hand, the addition of Ag NPSMs led to (1) an increased optical absorption; (2) light scattering at high angles which could possibly lead to more efficient light harvest in OSCs. On the other hand, the following results have been found in the hybrid films: (1) the surface roughness was found to be increased due to the formation of Ag agglomerates, leading to increased charge collection efficiency; (2) the global sheet resistance of the hybrid films also increases due to the excess poly(sodium styrenesulphonate) introduced by incompletely purified Ag NPSMs, resulting in lower short circuit current (Jsc); (3) the Ag nanoprisms and their agglomerates at the PEDOT:PSS/photoactive layer interface could act as recombination centers, leading to reductions in shunt resistance, Jsc and open circuit voltage (Voc). In order to partially counteract the disadvantage (2) and (3), by incorporating further purified Ag NPSMs and/or a small amount of glycerol into PEDOT:PSS, the sheet resistance of hybrid PEDOT:PSS-Ag-NPSM-films was reduced to a resistance value comparable to or lower than that of pristine film
Søiland, Anne Karin. "Silicon for Solar Cells." Doctoral thesis, Norwegian University of Science and Technology, Department of Materials Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-565.
Повний текст джерелаThis thesis work consists of two parts, each with a different motivation. Part II is the main part and was partly conducted in industry, at ScanWafer ASA’s plant no.2 in Glomfjord.
The large growth in the Photo Voltaic industry necessitates a dedicated feedstock for this industry, a socalled Solar Grade (SoG) feedstock, since the currently used feedstock rejects from the electronic industry can not cover the demand. Part I of this work was motivated by this urge for a SoG- feedstock. It was a cooperation with the Sintef Materials and Chemistry group, where the aim was to study the kinetics of the removal reactions for dissolved carbon and boron in a silicon melt by oxidative gas treatment. The main focus was on carbon, since boron may be removed by other means. A plasma arc was employed in combination with inductive heating. The project was, however, closed after only two experiments. The main observations from these two experiments were a significant boron removal, and the formation of a silica layer on the melt surface when the oxygen content in the gas was increased from 2 to 4 vol%. This silica layer inhibited further reactions.
Multi-crystalline (mc) silicon produced by directional solidification constitutes a large part of the solar cell market today. Other techniques are emerging/developing and to keep its position in the market it is important to stay competitive. Therefore increasing the knowledge on the material produced is necessary. Gaining knowledge also on phenomenas occurring during the crystallisation process can give a better process control.
Part II of this work was motivated by the industry reporting high inclusion contents in certain areas of the material. The aim of the work was to increase the knowledge of inclusion formation in this system. The experimental work was divided into three different parts;
1) Inclusion study
2) Extraction of melt samples during crystallisation, these were to be analysed for carbon- and nitrogen. Giving thus information of the contents in the liquid phase during soldification.
3) Fourier Transform Infrared Spectroscopy (FTIR)-measurements of the substitutional carbon contents in wafers taken from similar height positions as the melt samples. Giving thus information of the dissolved carbon content in the solid phase.
The inclusion study showed that the large inclusions found in this material are β-SiC and β-Si3N4. They appear in particularly high quantities in the top-cuts. The nitrides grow into larger networks, while the carbide particles tend to grow on the nitrides. The latter seem to act as nucleating centers for carbide precipitation. The main part of inclusions in the topcuts lie in the size range from 100- 1000 µm in diameter when measured by the Coulter laser diffraction method.
A method for sampling of the melt during crystallisation under reduced pressure was developed, giving thus the possibility of indicating the bulk concentration in the melt of carbon and nitrogen. The initial carbon concentration was measured to ~30 and 40 ppm mass when recycled material was employed in the charge and ~ 20 ppm mass when no recycled material was added. Since the melt temperature at this initial stage is ~1500 °C these carbon levels are below the solubility limit. The carbon profiles increase with increasing fraction solidified. For two profiles there is a tendency of decreasing contents at high fraction solidified.
For nitrogen the initial contents were 10, 12 and 44 ppm mass. The nitrogen contents tend to decrease with increasing fraction solidified. The surface temperature also decreases with increasing fraction solidified. Indicating that the melt is saturated with nitrogen already at the initial stage. The proposed mechanism of formation is by dissolution of coating particles, giving a saturated melt, where β-Si3N4 precipitates when cooling. Supporting this mechanism are the findings of smaller nitride particles at low fraction solidified, that the precipitated phase are β-particles, and the decreasing nitrogen contents with increasing fraction solidified.
The carbon profile for the solid phase goes through a maximum value appearing at a fraction solidified from 0.4 to 0.7. The profiles flatten out after the peak and attains a value of ~ 8 ppma. This drop in carbon content is associated with a precipitation of silicon carbide. It is suggested that the precipitation of silicon carbide occurs after a build-up of carbon in the solute boundary layer.
FTIR-measurements for substitutional carbon and interstitial oxygen were initiated at the institute as a part of the work. A round robin test was conducted, with the Energy Research Centre of the Netherlands (ECN) and the University of Milano-Bicocci (UniMiB) as the participants. The measurements were controlled against Secondary Ion Mass Spectrometer analyses. For oxygen the results showed a good correspondence between the FTIR-measurements and the SIMS. For carbon the SIMS-measurements were significantly lower than the FTIR-measurements. This is probably due to the low resistivity of the samples (~1 Ω cm), giving free carrier absorption and an overestimation of the carbon content.
Essner, Jeremy. "Dye sensitized solar cells: optimization of Grätzel solar cells towards plasmonic enhanced photovoltaics." Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/12416.
Повний текст джерелаDepartment of Chemistry
Jun Li
With the worldly consumption of energy continually increasing and the main source of this energy, fossil fuels, slowly being depleted, the need for alternate sources of energy is becoming more and more pertinent. One promising approach for an alternate method of producing energy is using solar cells to convert sunlight into electrical energy through photovoltaic processes. Currently, the most widely commercialized solar cell is based on a single p-n junction with silicon. Silicon solar cells are able to obtain high efficiencies but the downfall is, in order to achieve this performance, expensive fabrication techniques and high purity materials must be employed. An encouraging cheaper alternative to silicon solar cells is the dye-sensitized solar cell (DSSC) which is based on a wide band gap semiconductor sensitized with a visible light absorbing species. While DSSCs are less expensive, their efficiencies are still quite low compared to silicon. In this thesis, Grätzel cells (DSSCs based on TiO2 NPs) were fabricated and optimized to establish a reliable standard for further improvement. Optimized single layer GSCs and double layer GSCs showing efficiencies >4% and efficiencies of ~6%, respectively, were obtained. Recently, the incorporation of metallic nanoparticles into silicon solar cells has shown improved efficiency and lowered material cost. By utilizing their plasmonic properties, incident light can be scattered, concentrated, or trapped thereby increasing the effective path length of the cell and allowing the physical thickness of the cell to be reduced. This concept can also be applied to DSSCs, which are cheaper and easier to fabricate than Si based solar cells but are limited by lower efficiency. By incorporating 20 nm diameter Au nanoparticles (Au NPs) into DSSCs at the FTO/TiO2 interface as sub wavelength antennae, average photocurrent enhancements of 14% (maximum up to ~32%) and average efficiency enhancements of 13% (maximum up to ~23% ) were achieved with well dispersed, low surface coverages of nanoparticles. However the Au nanoparticle solar cell (AuNPSC) performance is very sensitive to the surface coverage, the extent of nanoparticle aggregation, and the electrolyte employed, all of which can lead to detrimental effects (decreased performances) on the devices.
Uprety, Prakash. "Plasmonic Enhancement in PbS Quantum Dot Solar Cells." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1403022047.
Повний текст джерелаTarabsheh, Anas al. "Amorphous silicon based solar cells." kostenfrei, 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-29491.
Повний текст джерелаAl, Tarabsheh Anas. "Amorphous silicon based solar cells." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-29491.
Повний текст джерелаBett, Alexander Jürgen [Verfasser], and Stefan [Akademischer Betreuer] Glunz. "Perovskite silicon tandem solar cells : : two-terminal perovskite silicon tandem solar cells using optimized n-i-p perovskite solar cells." Freiburg : Universität, 2020. http://d-nb.info/1214179703/34.
Повний текст джерелаSaliba, Michael. "Plasmonic nanostructures and film crystallization in perovskite solar cells." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:fdb36a9e-ddf5-4d27-a8dc-23fffe32a2c5.
Повний текст джерелаSchultz, Oliver. "High-efficiency multicrystalline silicon solar cells." München Verl. Dr. Hut, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?idn=977880567.
Повний текст джерелаEcheverria, Molina Maria Ines. "Crack Analysis in Silicon Solar Cells." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4311.
Повний текст джерелаLi, Dai-Yin. "Texturization of multicrystalline silicon solar cells." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/64615.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 103-111).
A significant efficiency gain for crystalline silicon solar cells can be achieved by surface texturization. This research was directed at developing a low-cost, high-throughput and reliable texturing method that can create a honeycomb texture. Two distinct approaches for surface texturization were studied. The first approach was photo-defined etching. For this approach, the research focus was to take advantage of Vall6ra's technique published in 1999, which demonstrated a high-contrast surface texture on p-type silicon created by photo-suppressed etching. Further theoretical consideration, however, led to a conclusion that diffusion of bromine in the electrolyte impacts the resolution achievable with Vallera's technique. Also, diffusion of photocarriers may impose an additional limitation on the resolution. The second approach studied was based on soft lithography. For this approach, a texturization process sequence that created a honeycomb texture with 20 ptm spacing on polished wafers at low cost and high throughput was developed. Novel techniques were incorporated in the process sequence, including surface wettability patterning by microfluidic lithography and selective condensation based on Raoult's law. Microfluidic lithography was used to create a wettability pattern from a 100A oxide layer, and selective condensation based on Raoult's law was used to reliably increase the thickness of the glycerol/water liquid film entrained on hydrophilic oxide islands approximately from 0.2 pm to 2.5 pm . However, there remain several areas that require further development to make the process sequence truly successful, especially when applied to multicrystalline wafers.
by Dai-Yin Li.
Ph.D.
Osorio, Ruy Sebastian Bonilla. "Surface passivation for silicon solar cells." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:46ebd390-8c47-4e4b-8c26-e843e8c12cc4.
Повний текст джерелаZhu, Mingxuan. "Silicon nanowires for hybrid solar cells." Ecole centrale de Marseille, 2013. http://tel.archives-ouvertes.fr/docs/00/94/57/87/PDF/The_manuscript-4.pdf.
Повний текст джерелаForster, Maxime. "Compensation engineering for silicon solar cells." Phd thesis, INSA de Lyon, 2012. http://hdl.handle.net/1885/156020.
Повний текст джерелаForster, Maxime. "Compensation engineering for silicon solar cells." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00876318.
Повний текст джерелаMcCann, Michelle Jane, and michelle mccann@uni-konstanz de. "Aspects of Silicon Solar Cells: Thin-Film Cells and LPCVD Silicon Nitride." The Australian National University. Faculty of Engineering and Information Technology, 2002. http://thesis.anu.edu.au./public/adt-ANU20040903.100315.
Повний текст джерелаChen, Wan Lam Florence Photovoltaics & Renewable Energy Engineering Faculty of Engineering UNSW. "PECVD silicon nitride for n-type silicon solar cells." Publisher:University of New South Wales. Photovoltaics & Renewable Energy Engineering, 2008. http://handle.unsw.edu.au/1959.4/41277.
Повний текст джерелаGandhi, Keyur. "Enhancement of light coupling to solar cells using plasmonic structures." Thesis, University of Surrey, 2015. http://epubs.surrey.ac.uk/808845/.
Повний текст джерелаSesuraj, Rufina. "Plasmonic mirror for light-trapping in thin film solar cells." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/366663/.
Повний текст джерелаEbenhoch, Bernd. "Organic solar cells : novel materials, charge transport and plasmonic studies." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7814.
Повний текст джерелаMadhavan, Atul. "Alternative designs for 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:3403005.
Повний текст джерелаNordmark, Heidi. "Microstructure studies of silicon for solar cells." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-5384.
Повний текст джерелаReuter, Michael [Verfasser]. "Thin Crystalline Silicon Solar Cells / Michael Reuter." München : Verlag Dr. Hut, 2011. http://d-nb.info/1012432041/34.
Повний текст джерелаInns, Daniel Photovoltaics & Renewable Energy Engineering Faculty of Engineering UNSW. "ALICIA polycrystalline silicon thin-film solar cells." Publisher:University of New South Wales. Photovoltaics & Renewable Energy Engineering, 2007. http://handle.unsw.edu.au/1959.4/43600.
Повний текст джерелаStüwe, David [Verfasser], and Jan G. [Akademischer Betreuer] Korvink. "Inkjet processes for crystalline silicon solar cells." Freiburg : Universität, 2015. http://d-nb.info/1122646984/34.
Повний текст джерелаShariff, A. "Computer simulation of amorphous silicon solar cells." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638814.
Повний текст джерелаKaminski, Piotr M. "Remote plasma sputtering for silicon solar cells." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13058.
Повний текст джерелаTsuda, Shinya. "TOWARDS HIGH EFFICIENCY AMORPHOUS SILICON SOLAR CELLS." Kyoto University, 1988. http://hdl.handle.net/2433/162221.
Повний текст джерелаDavidson, Lauren Michel. "Strategies for high efficiency silicon solar cells." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5452.
Повний текст джерелаManley, Phillip [Verfasser]. "Simulation of Plasmonic Nanoparticles in Thin Film Solar Cells / Phillip Manley." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1107011779/34.
Повний текст джерелаWang, Chuandao Charlie, and 王传道. "Organic solar cells towards high efficiency: plasmonic effects and interface engineering." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48329654.
Повний текст джерелаpublished_or_final_version
Electrical and Electronic Engineering
Doctoral
Doctor of Philosophy
Lu, Meijun. "Silicon heterojunction solar cell and crystallization of amorphous silicon." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 295 p, 2009. http://proquest.umi.com/pqdweb?did=1654494651&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Повний текст джерелаDemircioglu, Olgu. "Optimization Of Metalization In Crystalline Silicon Solar Cells." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614584/index.pdf.
Повний текст джерелаnalan August 2012, 103 pages Production steps of crystalline silicon solar cells include several physical and chemical processes like etching, doping, annealing, nitride coating, metallization and firing of the metal contacts. Among these processes, the metallization plays a crucial role in the energy conversion performance of the cell. The quality of the metal layers used on the back and the front surface of the cell and the quality of the electrical contact they form with the underlying substrate have a detrimental effect on the amount of the power generated by the cell. All aspects of the metal layer, such as electrical resistivity, contact resistance, thickness, height and width of the finger layers need to be optimized very carefully for a successful solar cell operation. In this thesis, metallization steps within the crystalline silicon solar cell production were studied in the laboratories of Center for Solar Energy Research and Application (GÜ
NAM). Screen Printing method, which is the most common metallization technique in the industry, was used for the metal layer formation. With the exception of the initial experiments, 6
Macdonald, Daniel Harold, and daniel@faceng anu edu au. "Recombination and Trapping in Multicrystalline Silicon Solar Cells." The Australian National University. Faculty of Engineering and Information Technology, 2001. http://thesis.anu.edu.au./public/adt-ANU20011218.134830.
Повний текст джерелаYao, Guoxiao Centre for Photovoltaic Engineering UNSW. "High efficiency metal stencil printed silicon solar cells." Awarded by:University of New South Wales. Centre for Photovoltaic Engineering, 2005. http://handle.unsw.edu.au/1959.4/23062.
Повний текст джерелаSong, Yang Photovoltaics & Renewable Energy Engineering Faculty of Engineering UNSW. "Dielectric thin film applications for silicon solar cells." Publisher:University of New South Wales. Photovoltaics & Renewable Energy Engineering, 2009. http://handle.unsw.edu.au/1959.4/44486.
Повний текст джерелаLiang, Jianjun. "Device physics of hydrogenated amorphous silicon solar cells." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
Повний текст джерелаJamshidi, Gohari Ebrahim. "Buried screen-printed contacts for silicon solar cells." Thesis, Högskolan Dalarna, Energi och miljöteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:du-13593.
Повний текст джерелаIn collaboration with Institute for Photovoltaics IPV, University of Stuttgart.
Heß, Uwe [Verfasser]. "Investigations of RGS Silicon Solar Cells / Uwe Heß." München : Verlag Dr. Hut, 2013. http://d-nb.info/1037286839/34.
Повний текст джерелаShih, Jeanne-Louise. "Zinc oxide-silicon heterojunction solar cells by sputtering." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112583.
Повний текст джерелаTucher, Nico [Verfasser], Claas [Verfasser] Müller, and Stefan [Verfasser] Glunz. "Analysis of photonic structures for silicon solar cells." Freiburg : Universität, 2016. http://d-nb.info/1136567186/34.
Повний текст джерелаLu, Chien Ming, and 盧建明. "Efficiency improvement of silicon solar cells using plasmonic nanoparticles." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ke3gyf.
Повний текст джерела長庚大學
光電工程研究所
105
In this study,dilute nano-silver solution was coating on the surface of silicon solar cells that its surface plasmonic structure can prompt the absorption of the solar cell, thereby enhancing the correspondent efficiency. In the first part, the correspondent concentration of diluted nano-silver solutions 10%, 20%, 30% and 40% are coated on the anti-reflective layer of each silicon solar cell which has a size of 2x 2 mm2 . The second part is coated with the toluene liquid and annealed. The third part of this thesis is the large-scale, 156 x 156 mm2, solar cells coated with nano-silver. All for the efficiency enhancement of the different conditions’ nanopartcles coated silicon solar cells.The surface distribution of nano-silver was observed by the field emission scanning electron microscopy (FE-SEM), and various characteristics of the solar cell were studied by using the current-voltage curve measurement on the solar cell simulator. Further, the ultraviolet / visible- Spectroscopy (UV / VIS) was used to investigate the coated layers’ optical properties.
Ho, Chung-I., and 何宗一. "Three-dimensional nanorods and plasmonic nanoparticles thin film hydrogenated amorphous silicon solar cells." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/97265275147775225651.
Повний текст джерела國立臺灣大學
光電工程學研究所
101
This thesis explores various types of nanostructures in single junction hydrogenated amorphous silicon (a-Si:H) solar cells. The nanometer-sized structures are promising due to their excellent optical and electronic properties. They provide an effective way to increase optical path length inside solar cell, and thus result in improved energy conversion efficiency. This thesis is divided into two primary tasks: plasmonic nanoparticles and three-dimensional nanorods structures. First, the plasmonic-structure incorporated multilayer of Au nanoparticles embedded in the transparent conducting oxide at the back reflector of a-Si:H solar cells is demonstrated. The effect of the nanoparticles density and the number of multilayer of the nanoparticles in tuning the plasmon resonances for better scattering are investigated by measuring optical characteristics. The double-layer Au nanoparticles structure has an advantage over single-layer for harvesting light. In addition to enhanced light scattering, applying high-work-function Au nanoparticles can improve the matching of work function at TCO/a-Si:H interface. Second, the a-Si:H solar cells based on three-dimensional ZnO nanorods arrays prepared by hydrothermal growth is demonstrated. The influence of the absorber layer thickness and rod length on the performance of a-Si:H solar cells are investigated in detail. Focus in on the concept of applying three-dimensional nanorods for electronically thin and optically thick in achieving high efficiency a-Si:H solar cells. Third, the a-Si:H solar cells based on random textures substrates incorporating ZnO nanorod arrays is demonstrated. Highly-oriented ZnO nanorods are grown on textured substrate (Asahi-U glass) through hydrothermal growth. It is found that the surface morphology and diffuse scattering property are strongly dependent on the concentration of reagents. By controlling the experimental conditions, the flower-like ZnO nanostructure is successfully obtained. Fourth, in terms of previous tasks, plasmonic Au nanoparticles and three-dimensional nanorod arrays are combined to demonstrate a new type of nanoparticles decorated nanorods a-Si:H solar cell. The ultra-thin Au film are deposited on the surface of nanorods by thermal evaporation system to form Au nanoparticles. The scattering property between plasmonic nanoparticles and three-dimensional nanorods are investigated systematically. By optimizing thickness of Au metal film appropriately, the improved energy conversion efficiency is obtained for the nanoparticles decorated nanorods a-Si:H solar cell.
Su, Shih-Ya, and 蘇詩雅. "Performance Characterization of Texturing Silicon Solar Cells Using Silver and Indium Nanoparticles Plasmonic Scattering." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/3u98ky.
Повний текст джерела國立臺北科技大學
光電工程系研究所
103
In this paper, the properties of silicon solar cells using the surface plasmon resonance effects generated through the embedded metal nanoparticles are investigated. First, the nanoscale metallic siliver (Ag) and indium (In) nanoparticles (NPs) were deposited on the titanium dioxide (TiO2) space layer with various thickness. Then, a layer of aluminum oxide (Al2O3) was coated on the cells with NPs, it exhibited a cell with plasmon antireflective coating (PARC) layer. The PARC layer provides both double anti-reflection and SPR effects to improve the incident photons absorbed in semiconductor as well as to enhance the photocurrent (Iph) and conversion efficiency (η), the reflectivity, external quantum efficiency (EQE), dark I-V and photovoltaic I-V characteristics of the PARC solar cell are measured and compared. The photovoltaic performance of PARC structure silicon solar cell and double layer anti-reflective coating (DL-ARC) which having a 20-nm TiO2 and a 65-nm Al2O3, were measured and compared. The short-current density enhancement (ΔJsc) of 10.16% (from 31.14 mA/cm2 to 35.05 mA/cm2) and the conversion efficiency enhancement of (Δƞ) 16.80% (from 12.50 % to 14.60%) were obtained for the cell with DL-ARC. However, theΔJsc of 12.68% (from 31.60 mA/cm2 to 34.81 mA/cm2) and Δƞ of 20.40% (from 9.48% to 15.85%) were achieved for the cell with PARC structure. In summary, an additional enhancement of light trapping was obtained for the cell with a PARC layer, compared to the cell with DL-ARC.