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Dissertations / Theses on the topic 'Azo dyes ; Dye-sensitized solar cells'

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Published: 4 June 2021
Last updated: 8 February 2022

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1

Zhang, Lei. "Structure-property relationships of azo dyes for dye-sensitized solar cells." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708314.

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2

Wills, Kathryn. "Copper dyes for dye-sensitized solar cells." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636545.

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This thesis studies the application of copper(I) complexes as the sensitizing component of dye sensitized solar cells (DSCs). Ruthenium(II) polypyridyl complexes have been widely studied and shown great success for the past two decades; however the metal is rare and expensive. A copper(I) based DSC could offer a viable alternative to using ruthenium(II) dyes, taking into account the cost and sustainability advantages. Interest in copper(I) DSCs has reignited over the past five years and the work in this thesis begins by reproducing the synthesis of one of the first reported complexes, [Cu(6,6’
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3

Marinado, Tannia. "Photoelectrochemical studies of dye-sensitized solar cells using organic dyes." Doctoral thesis, Stockholm : Skolan för kemivetenskap,Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11248.

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4

Torpner, Jessie, and Elvira Boman. "Characterization of Natural Peruvian Dyes on Dye-Sensitized Solar Cells." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326414.

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5

Cappel, Ute. "Characterisation of Organic Dyes for Solid State Dye-Sensitized Solar Cells." Doctoral thesis, Uppsala universitet, Fysikalisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150047.

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Energy from the sun can be converted to low cost electricity using dye-sensitized solar cells (DSCs). Dye molecules adsorbed to the surface of mesoporous TiO2 absorb light and inject electrons into the semiconductor. They are then regenerated by the reduced redox species from an electrolyte, typically consisting of the iodide/tri-iodide redox couple in an organic solvent. In a solid state version of the DSC, the liquid electrolyte is replaced by an organic hole conductor. Solid state DSCs using 2,2'7,7'-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9'-spirobifluorene (spiro-MeOTAD) have reached c
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6

Mohsen, Moneer Kadhm. "Synthesis and testing of new dyes for dye-sensitized solar cells." Thesis, Bangor University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664480.

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This thesis concentrates on the development and synthesis of new metal-containing phthalocyanine and metal-free organic dyes for dye-sensitized solar cells (DSC). In this thesis attempts have been made to cover a broad region of visible light through the synthesis of three different dye families. The N719 is the common dye was used as a sensitizer in DSC devices, which absorbs at 450-600 nm, while in this thesis were synthesized and developed three new types of dyes to work either side of N719 absorb light at (400-450) run for yellow and red single or di-linker dyes, cyanine and phthalocyanine
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7

Siu, Chi Ho. "Metallated and metal-free molecular dyes for dye-sensitized solar cells." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/96.

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The molecular design, synthesis and spectroscopic characterization of a series of ruthenium(II), metal-free and platinum(II) photosensitizers were discussed. The applications of some of these compounds in dye-sensitized solar were also outlined. To start with, a brief overview on the background of dye-sensitized solar cells (DSSCs) was presented in Chapter 1. In Chapter 2, a series of new thiocyanate-free ruthenium(II) cyclometalated complexes with different ligands were successfully synthesized and some of them were fully characterized by spectroscopic and computational methods. The nature
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8

Qin, Peng. "The study of organic dyes for p-type dye-sensitized solar cells." Doctoral thesis, KTH, Organisk kemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-24406.

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This thesis concerns the study of D–π–A type dyes as sensitizers for NiO-based p-type dye-sensitized solar cells. The focus has been on the design and synthesis of efficient dyes and the identification of parameters limiting the solar cell performance. We have developed a new design strategy for the dyes: upon photoexcitation of the dye, the electron density is moving from the part that is attached to the semiconductor towards the part which is pointing away. This intramolecular charge transfer provides an efficient pathway for the following charge transfer processes. The first organic dye, co
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9

Gabrielsson, Erik. "Molecular Engineering of D-π-A Dyes for Dye-Sensitized Solar Cells". Doctoral thesis, KTH, Organisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-144874.

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Dye-sensitized solar cells (DSSCs) present an interesting method for the conversion of sunlight into electricity. Unlike in other photovoltaic technologies, the difficult tasks of light absorption and charge transport are handled by two different materials in DSSCs. At the heart of the DSSC, molecular light absorbers (dyes) are responsible for converting light into current. In this thesis the design, synthesis and properties of new metal-free D-π-A dyes for dye-sensitized solar cells will be explored. The thesis is divided into six parts: Part one offers a general introduction to DSSCs, dye de
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10

Fattori, Alberto. "Electrochemical and spectroelectrochemical studies of dyes used in dye-sensitized solar cells." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538162.

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Electrochemical and spectroelectrochemical techniques were employed to investigate the redox characteristics of dyes for dye sensitized solar cells (DSCs) adsorbed at the surface of fluorine-doped tin oxide (FTO) and FTO TiO2 electrodes. In this work are studied Ru-based dyes such as cis-bis(isothiocyanato)-bis(2,2’-bipyridyl- 4,4’dicarboxylato)-ruthenium(II) (N719) and (cis-RuLL'(SCN)2 with L=4,4'- dicarboxylic acid-2,2'-bipyridine and L'=4,4'-dinonyl-2,2'-bipyridine) known as Z907, and indoline organic dyes coded as D102, D131, D149, and D205. The adsorption, diffusion and stability of adsor
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11

Low, Kian Sing. "Structure-property relationships of dyes as applied to dye-sensitized solar cells." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607807.

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12

Gong, Yun. "Structure-property relationships of dyes as applied to dye-sensitized solar cells." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275007.

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This work investigates the correlation of structural and photovoltaic properties of dyes used in dye-sensitized solar cells. Experimental methods, including ultraviolet-visible spectroscopy, fluorescence spectroscopy, cyclic voltammetry and electrochemical impedance spectroscopy are employed to study optical and electrochemical properties of dye molecules. Computational methods, including density functional theory and time-dependent density functional theory, are used to validate and predict the optical and electronic properties of dye molecules, in their isolated state and once embedded into
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13

Hart, Aaron S. "Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc407837/.

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The details of dye sensitized solar cells was explained and phenothiazine and porphyrin based dyes were synthesized for use in DSSCs. DSSCs offer a unique and cost effective method of renewable energy. DSSCs are characterized through various tests, with the overall efficiency, η, bearing the greatest importance. Incident photon to current conversion efficiency, or IPCE, is also another important characterization of DSSCs. Effect of positioning of the cyanoacrylic acid anchoring group on ring periphery of phenothiazine dye on the performance of dye sensitized solar cells (DSSCs) is reported.
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14

Sampaio, Samuel Gondim. "Study and Characterization of New Natural Dyes for Application in Sensitized solar cells." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11335.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>Este trabalho apresenta um estudo e caracterizaÃÃo de corantes com flores de plantas coletadas na regiÃo Nordeste do Brasil, tais como: a Sida cordifolia (malva branca), a Catharanthus roseus (boa noite) e a Torenia fournieri (amor-perfeito-de-verÃo), Allamanda catÃrtica (alamanda da flor grande) e Cobaea scandens (sino de catedral). Foi estudado e observado a influÃncia dos flavonoides na sensibilizaÃÃo dos corantes naturais por meio de um protÃtipo de cÃlula fotovoltaica, com vidros condutores com um filme de SnO2:F pr
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15

Hua, Yong. "Design and synthesis of new organic dyes for highly efficient dye-sensitized solar cells (DSSCs)." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/71.

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Dye-sensitized solar cell (DSSC) has attracted increasing interest as a promising hybrid organic-inorganic solar cell. At the heart of the device is a photosensitizer, which is anchored onto a wide-bandgap semiconducting metal oxide. It harvests solar light and transfers the energy via electron transfer to a suitable material (e.g. TiO2) to produce electricityas opposed to chemical energy in plant. The topic of this thesis focuses on the design and synthesis of metal-free organic dyes for applications in DSSCs. Specific attention has been paid to the correlation between the molecular structure
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16

Click, Kevin A. "Design and Synthesis of Organic Dyes for Solar Energy Conversion and Storage." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492448144094887.

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17

Rudolph, Melanie [Verfasser]. "Photoelectrochemical characterization of dye-sensitized solar cells based on ZnO and organic dyes / Melanie Rudolph." Gießen : Universitätsbibliothek, 2016. http://d-nb.info/1104683466/34.

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18

Liu, Xiaogang. "Structure-property relationships of organic coumarin-based dyes for use in dye-sensitized solar cells." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708514.

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19

Park, Eunsol. "Synthesis of Tethering Group on Borylazadipyrromethene Dyes to Apply to Photogalvanic Dye-sensitized Solar Cells." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700072/.

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This is my thesis research on the preparation of borylazadipyrromethene (azaBODIPY) dyes bearing an anchoring group, such as a carboxylic acid group, at the β-pyrrolic position of the azadipyrromethene scaffold. Carboxylate groups form covalent bonds to oxide semiconductors such as TiO2 (n-type) or Cu2O (p-type) in dye-sensitized solar cells (DSCs) or photogalvanic dye-sensitized solar cells (P-DSCs). Oxide-binding azaBODIPY dyes can be used to investigate the rate and mechanism of electron injection from the dyes to the semiconductors. Two different types of azaBODIPY (difluoroboryl and dialk
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20

Anderson, Assaf Y. "Quantifying regeneration in dye sensitized solar cells : a step toward red absorbing dyes having lower energy loss." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6181.

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A limiting factor on DSSC efficiency is the lower fraction of the solar spectrum that is absorbed by the dye molecules developed to this point. Dye molecules that function well in DSSCs tend to have poor or no absorption to the red of 750 nm. Extending this absorption to the red by 100 nm, without losing efficiency in other ways, would result in a significant improvement in photocurrent. This challenge has proven difficult, in large part because of one slow reaction in the electron transfer cycle of DSSCs, the regeneration reaction. Better understanding of this reaction is thus critical. The k
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21

Patel, Dinesh G. "Organic dyes for photoswitching and photovoltaic applications /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/8537.

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22

Neuthe, Katja [Verfasser]. "Synthesis and Characterization of Transition Metal-Based Dyes for the application in Dye Sensitized Solar Cells / Katja Neuthe." Berlin : Freie Universität Berlin, 2014. http://d-nb.info/1060717859/34.

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23

Rohwer, Egmont Johann. "Ultrafast photodynamics of ZnO solar cells sensitized with the organic indoline derivative D149." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86444.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The initial charge transfer from dye molecules' excited states to the conduction band of a semiconductor, after absorption of visible light by the former, is critical to the performance of Dye sensitized Solar Cells (DSC). In a ZnO-based DSC sensitized by the organic indoline derivative D149, the dynamics associated with charge transfer are investigated with femtosecond transient absorption spectroscopy. The time-resolved measurement of the photo-initiated processes reveal electron transfer rates corresponding to excited st
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24

Delices, Annette. "Organized Organic Dye / Hole Transporting Materials for TiO2- and ZnO- based Solid-State Dye-Sensitized Solar Cells (s-DSSCs)." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC066/document.

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En raison des problèmes d'instabilité à moyen termes des cellules solaires à colorant (DSSC), l'électrolyte liquide à base d'iodure a été remplacé par plusieurs types de matériaux solides transport de trous (HTM) pour obtenir des DSSCs à l'état solide (s-DSSCs). Parmi ces matériaux, l’utilisation des polymères conducteurs(PC) a attiré une attention considérable en raison de leur bonne stabilité, de leur haute conductivité et de la facilité de leur dépôt sur le semi-conducteur mésoporeux TiO2. Dans ce travail de thèse, plusieurs s-DSSCs basées sur des PC utilisés comme HTM ont été développés da
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25

Emig, Andrew James. "Dye Sensitization in a Photoelectrochemical Water-Splitting Cell Using N,N'-Bis(3-phosphonopropyl)-3,4,9,10-perylenedicarboximide." Youngstown State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1345498406.

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26

Shi, Yanrong. "Squaraine dyes for non-linear optics and organic electronics." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44720.

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This dissertation describes the investigation of the synthesis and characterization of new squaraine-based photonic and electronic materials. In the first part of this thesis, squaraine dyes with large conjugation systems, including extended squaraines consisting of bis(donor)substituted vinylene-heterocycles and bis(indolinylenemethyl)squaraine-based oligomers linking through different π-bridges were designed, synthesized and characterized to exhibit strong two-photon absorption (2PA) for femotosecond and nanosecond optical-power limiting applications in the near-infrared (NIR). One of the de
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27

Smortsova, Yevheniia. "Dye sensitized solar cells efficiency improvement : optimization of the electrolyte using ionic liquids/molecular solvents mixture and study of the photodynamic properties of organic indolinic derivative dyes." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1R061/document.

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Parmi les énergies renouvelables, l’énergie solaire est la plus puissante. L’élément clé des DSSCs est le photosensibiliseur, par lequel la génération de photocourant est possible. L’autre élément important est l’électrolyte. Les liquides ioniques (Ils) sont utilisés en tant qu’électrolytes dans les DSSCs du fait de leurs propriétés chimiques: pression de vapeur basse, haute résistance thermique et chimique, polarité et phase modulables, etc. L’objectif de cette thèse est de comprendre les processus photophysiques dans les colorants dérivés d’indolines dans les solvants moléculaires (MS) et le
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28

Pekkola, René [Verfasser], Wolfram [Akademischer Betreuer] Jaegermann, and Heinz von [Akademischer Betreuer] Seggern. "Electronic Structure of Solid-State Dye-Sensitized Solar Cells: Synchrotron Induced Photoelectron Spectroscopy on Nanocrystalline TiO2, Newly Developed Dyes and Spiro-MeOTAD / René Pekkola. Betreuer: Wolfram Jaegermann ; Heinz von Seggern." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2014. http://d-nb.info/1110792689/34.

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29

Silva, Maria do Socorro de Paula. "SupressÃo de LuminescÃncia de Corantes CatiÃnicos por Complexo de RutÃnio e sua Potencial AplicaÃÃo em CÃlulas Solares Fotosensibilizadas." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11332.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Complexos de bipiridinas de rutÃnio sÃo bastante estudados na literatura por apresentarem propriedades de interesse em diversas Ãreas como estudos fotoquÃmicos e fotofÃsicos, aplicaÃÃo em sistemas biolÃgicos e como fotosensibilizadores em cÃlulas solares. No presente trabalho, os complexos do tipo cis-[Ru(bpy)(dcbH2)(L)Cl], onde L = Azul do Nilo (NB), Azul de Toluidina (TBO), 9-Aminoacridina (9AA), Azure B (AB) e Violeta de Cresila (VC) foram sintetizados e caracterizados por tÃcnicas espectroscÃpicas e eletroquÃmi
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30

Liu, Yung-Chin, and 劉勇進. "Application and Study of Phthalocyanine and Azo Dyes for Dye-Sensitized Solar Cell." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/85652032548787094481.

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碩士<br>義守大學<br>生物技術與化學工程研究所碩士班<br>97<br>Dye-sensitized solar cells (DSSCs) have been considered as one of the most promising solar cell technologies for their low cost and high efficiency comparable to that of silicon solar cells. The aim of this study is developing efficient and stable DSSCs. We focus on the development of the following two key materials: 1. the organic dyes do not contain noble metals; 2.high specific surface area nanocrystalline TiO2 electrodes. We prepared the DSSCs consisting of mixed phthalocyanine and azo dyes instead of single dye system to utilize the broad spect
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31

Ting, So-yi, and 丁守儀. "Application and Study of Cyanine and Azo Dyes for Dye-Sensitized Solar Cell." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/65321104153239518066.

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碩士<br>義守大學<br>生物技術與化學工程研究所碩士班<br>97<br>The aim of this study is developing efficient and stable dye sensitized solar cells. We focus on the development of the following two key materials: 1. the organic dyes do not contain noble metals; 2.high specific surface area nanocrystalline TiO2 electrodes. In the part of dyes, we have designed and synthesized the Azo dye having absorption of short wavelength, and mixed it with the Cyanine dye having absorption of long wavelength instead of single dye system to utilize the broad spectrum of sunlight. The performances of DSSCs fabricated in the mixed dye
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32

黃漢彬. "Dye-Sensitized Solar Cells(DSSC)made with AZO and ITO process and characteristic analysis." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/19041504298467272383.

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碩士<br>中華大學<br>機械工程學系碩士班<br>96<br>Abstract This paper investigates the opto-electric property of the TCO (Transparent Conductive Oxide) films made by ITO and AZO in sputtered on glass. Then analyze the transparent and resistance after annealing the TCO films with different time and temperature to understanding TCO’s characteristic. The final TiO2 film is made by using 7nm TiO2 powder and annealing with 150℃ temperature. The TCO transparency and resistivity was studied first, then the dye-sensitized solar cells power efficiency with graphite anode and added with dye into TiO2 film was also anal
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33

Huang, Hsin-Hsiang, and 黃信祥. "The effect of AZO and compact TiO2 films on the performance of dye-sensitized solar cells." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/73939000848417307602.

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碩士<br>龍華科技大學<br>機械工程系碩士班<br>103<br>A thin TiO2 compact layers and inexpensive Al2O3-doped zinc oxide (in AZO, the Al2O3 contents are approximately 3 wt.%) transparent conducting films, by means of radio frequency (rf) magnetron sputtering, using deposition parameters that ensure higher photo catalytic activity and increased dye-sensitized solar cells (DSSC) conversion efficiency. Findings based on the grey relational Taguchi method, the lowest electrical resistivity of AZO/glass films to be about 3.4 mΩ-cm, and visible range optical transmittance about 88%. By applying annealing, the AZO films
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34

LEE, ZONG-YAN, and 李宗彥. "Study on AZO/IGZO Transparent Conductive Thin Film for Dye-sensitized Solar Cells with Photoelectric Characteristics and Impedance Analysis under Low Intensity Illumination and Series-parallel Modules." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/remx55.

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碩士<br>國立雲林科技大學<br>電子工程系<br>106<br>In this thesis, the InGaZnO4 (IGZO) film is sputtered on the glass substrate as a buffer layer, and then the Al-doped zinc oxide (AZO) thin film is deposited onto the glass substrate with buffer layer as the transparent conductive oxide (TCO). By using radio frequency (R.F.) sputtering, 4-point probe and alpha-step profiler, the best process parameters are investigated and characterized. The experimental result shows that the optimal electrical resistivity of AZO TCO film is 2.6×10-3 Ω-cm. In addition, the optimal electrical resistivity of AZO/IGZO TCO film, i
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Lai, Xuan-Rong, and 賴宣融. "Development of natural dyes for dye sensitized solar cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/wkt9nv.

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碩士<br>國立臺北科技大學<br>機電整合研究所<br>100<br>The performance of dye sensitized solar cells is mainly based on the dye as a sensitizer, the natural dyes have extensively replaced synthetic dyes. In the experiments of the research is based on the two natural dyes of chlorophyll and anthocyanin for the study, one of the natural dyes is chlorophyll, which is extracted from wormwood and the other is anthocyanin dye which is extracted from purple cabbage extract. In addition, the chlorophyll and anthocyanin dyes were blended in the proportion of equal volume as cocktail-form dyes. The way of extracting natur
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36

Lo, Yu-Jen, and 羅右任. "Natural Dyes as Photosensitizers for Dye-sensitized Solar Cells." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/6597yz.

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碩士<br>國立臺北科技大學<br>製造科技研究所<br>97<br>In this paper, we have extracted chlorophyll from the pomegranate leaves and anthocyanin from mulberry fruits to used as-prepared natural dye to investigate the correlation between the extraction solvent and the extraction temperature and the concentration and pH condition for dye extraction to DSSC performance. Then combine chlorophyll and anthocyanin as the dye cocktails to perform the photoelectron conversion efficiency.In addition, Electrophoretic deposition was performed to let the TiO2 deposite nanoparticles on the indium tin oxide (ITO) conductive glas
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37

Hsuan, Chang Huan, and 張桓瑄. "Dialkylphenyl-Containing Organic Dyes for Dye-Sensitized Solar Cells." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/77329022061152143578.

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38

SU, TING-YI, and 蘇亭伊. "The Study of Dye-sensitized Solar Cells with Compound Dyes." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/4g8q85.

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碩士<br>國立高雄應用科技大學<br>光電與通訊工程研究所<br>105<br>In this study, the proposed dye-sensitized solar cells use two different types of dyes as the sensitizers of the cells. This co-sensitization can improve the ability of light capture and the conversion efficiency of the cell because each dye has its own absorption spectrum which can be arranged complementary to the other dye. In fact, the co-sensitization technique makes a broader absorption of solar energy to improve the performance of the cell. In this study, N719 and SQ2 are used as the sensitizers of the proposed dye-sensitized solar cells. An ultra
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39

Chang, Yu-Cheng, and 張羽成. "Synthesis of Novel Organic Dyes for Dye Sensitized Solar Cells." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/eat658.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>97<br>In this thesis, organic dyes with the structure of donor-conjugated chain-acceptor (D-π-A) have been synthesized for dye-sensitized solar cell (DSSC) application. The electron donating and accepting groups are arylamine and cyano acrylic acid , respectively. All of these compounds were characterized by UV/VIS spectrophotometer, fluorescence spectrophotometer and cyclic voltammetry. The photo-conversion results of their DSSC devices were inspected using the AM 1.5 simulated solar light system.
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40

Sie, Cheng-Min, and 謝承旻. "Synthesis of Novel Organic Dyes for Dye Sensitized Solar Cells." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/a8yz5n.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>97<br>In this thesis, the organic dyes with the structure of donor-conjugated chain-acceptor have been synthesized for dye sensitized solar cell (DSSC) application. The electron donating group is arylamine with thiophene, and the electron accepting group is cyanoacrylic acid. All compounds were characterized by UV-vis spectrophotometer, fluorescence spectrophotometer, and cyclic voltammetry. The power-conversion efficiency was measured by the AM1.5 simulated solar light system.
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Hsieh, Jung-Hang, and 解榮航. "Organic Dyes with Dithiafulvalene Donors for Dye-Sensitized Solar Cells." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/95283333877463801481.

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碩士<br>國立臺灣師範大學<br>化學系<br>104<br>We have successfully developed a new series of D-π-A types organic dyes containing dithafulvalene(DTF) units as the electron donor, 8H-indeno[2,1-b]thiophen-8-one as the core of the conjugated spacer, and 2-cyanoacrylic as the acceptor and anchor. These dyes were used as the sensitizers for dye sensitized solar cell applications. Thiophene or bithiophene was also introduced to the spacer to tune the conjugation. Different alkyl chains were also incorporated at the DTF moiety. Stille Coupling, Grignard reaction, Vilsmeier–Haack reaction, and Knoevenagel condens
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Anwar, Hafeez. "Precious Metal-free Dye-sensitized Solar Cells." 2013. http://hdl.handle.net/10222/42686.

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Exploring new technologies that can meet the world’s energy demands in an efficient and clean manner is critically important due to the depletion of natural resources and environmental concerns. Dye-sensitized solar cells (DSSCs) are low-cost and clean technology options that use solar energy efficiently and are being intensively studied. How to further reduce the cost of this technology while enhancing device performance is one of the demanding issues for large scale application and commercialization of DSSCs. In this research dissertation, four main contributions are made in this regard with
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Zeng, Guang-Rong, and 曾光榮. "Study on Cosensitized by Organic Dyes for Dye Sensitized Solar Cells." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/10533086598278530529.

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碩士<br>明志科技大學<br>化工與材料工程研究所<br>99<br>The metal-free organic dyes: coumarin 343(C343), Eosin Y(EoY), fluorescein(F), fluorescein isothiocyanate(FNCS) and Rhodamine B (Rho B) are used to sensitize nanocrystalline porous TiO2 films and applied for dye-sensitized solar cells (DSSCs). J-V curve measurements show the DSSC based on Eosin Y receives the best photoelectric conversion efficiency with 0.473%. The dyes loading of the photoelectrodes were measured by dye-desorption experiments and indicates that the C343 dye has best adsorption ability and TiO2 photoelectrode get a highest loading of 15.8×1
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TANG, DONG-LIN, and 湯東霖. "The Application of New Organic Dyes for Dye Sensitized Solar Cells." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xpv74a.

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碩士<br>國立聯合大學<br>光電工程學系碩士班<br>106<br>This study demonstrated the new organic materials served as the absorption layer in dye-sensitized solar cells (DSSC). we prepared three phenothiazine (PTA)-based D-π-A organic dyes (TC6PTA, TBOC6PTA, and cC6PTA). We designed TC6PTA with triphenylamine as the basic donor unit, then changed the conjugated moiety on the PTA bridged unit, named TBOC6PTA. In addtion, the planarity donor (carbazole) unit was used to replace the triphenylamine, named cC6PTA. Their optical properties were studied and their practical application in dye-sensitized solar cells was dem
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Chou, Yun Yi, and 周昀毅. "Utilization of Nature Dyes as Photosensitizers for Dye-sensitized Solar Cells." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/u2r7dy.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>96<br>Since 1991, Grätzel et al. have developed the first dye-sensitized solar cells (DSSC), it has been studied extensively. Ru transition-metal complexes (N3, N719) were the most commonly used dye to achieve high cell efficiency up to 11%. The commercial Ru-dyes are, however, very expensive. In this experiment, we have extracted anthocyanins from the red cabbage and xanthophylls from yellow chrysanthemum to used as-prepared natural dye to investigate the correlation between the extraction solvent and the concentration and pH condition for dye extraction to DSSC
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Lin, Yeo-Sin, and 林佑昕. "Dipolar Organic Dyes Containing 1,3-Cyclohexadiene for Dye-Sensitized Solar Cells." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/85942905333942830233.

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碩士<br>國立臺灣師範大學<br>化學系<br>101<br>Three new organic dipolar D-π-A dyes（DM132, DM141, DM157）with triarylamine as the electron donor, carboxylic acid or cyanoacrylic acid as an electron acceptor as well as an anchoring group, connected with thieno[3,2-b]thiophene and a π-conjugated spacer 1,3-cyclohexdiene or phenyl between the electron donor and acceptor. The photophysical and electrochemical properties of the three dyes were studied in details by UV/ Vis, fluorescence spectroscopy, and cyclic voltammetry. The cell performances of cells assembled from these light-harvesting dyes have been evaluat
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Lin, Tsu-han, and 林祖涵. "Synthesis of Unsymmetrical Near-IR Dyes for Dye-Sensitized Solar Cells." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/63535224707542129743.

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碩士<br>國立中央大學<br>化學研究所<br>98<br>Solar energy is one of the most promising energy resources due to its cleanliness and abundance. Amongst the newly developed photovoltaic technologies to convert sunlight to electricity, Dye-sensitized solar cells (DSCs) have attracted significant attention as one of the low-cost alternatives for the realistic applications due to their impressive conversion efficiency. Numerous metal-free organic dyes with high molar extinction coefficients have been developed. Nevertheless, there are few dyes which can efficiently absorb the far-red and near-IR lights. In this t
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Chen, Chih-Han, and 陳致翰. "New Device Structures and Novel Organic Dyes for Dye-Sensitized Solar Cells." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/41118123504076654458.

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碩士<br>國立東華大學<br>光電工程學系<br>102<br>Abstract The advantages of dye-sensitized solar cells (DSSCs) are easy manufacturing, low cost, and high power efficiency. Typically, a dye-sensitized solar cell is composed of five major parts, which include transparent conductive substrate, titanium dioxide, dye, electrolyte, and platinum. In recent years, the issue of energy supply shortage has increased the research speed of dye-sensitized solar cells. In this thesis, we first studied three kinds of organic dyes and investigated the characteristics of dye-sensitized solar cells using these organic dyes. We
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Hsueh, Wei-tsung, and 薛惟聰. "New CPDT Containing Donor-Acceptor Organic Dyes for Dye-Sensitized Solar Cells." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/02611628063574636256.

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碩士<br>國立中央大學<br>化學研究所<br>96<br>The advantages of metal free sensitizers, compared to the Ru-based sensitizer in the Grätzel cell, are the high absorption coefficient and without using expensive metal. Furthermore, the structure of organic sensitizers can be widely modified to enhance the performance for solar cells. In general, the organic sensitizer contains a Donor group (such as Carbazole or Triphenylamine), a Spacer and Acceptor group (CN with COOH) to form so called Donor-Spacer-Acceptor type dyes. We synthesize a series organic dyes containing N-arylcarbazole or Triphenylamine as donor g
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Hsieh, Wei-Szu, and 謝維斯. "Synthesis of Novel Triphenylamine Derivative Organic Dyes for Dye-Sensitized Solar Cells." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/2m497d.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>98<br>In this thesis,we have successfully synthesized a series of triphenylamine derivative dye compounds, their structures contain electron-donating groups, π bridges, modified groups and electron-accepting groups, this chapter mainly discusses the different π bridges、 modified groups and electron-accepting groups of its photoelectric conversion efficiency.π bridges with thiophene and 3,4-Ethylenedioxythiophene as a π-conjugated connection chain, modified groups design modification of thiophene as the main group, and joined the alkyl chain to increase solubility,
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