Log in

Relevant bibliographies by topics / Quantum Dot synthesis / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Quantum Dot synthesis.

Dissertations / Theses on the topic 'Quantum Dot synthesis'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Quantum Dot synthesis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Tongkhundam, Jindee. "Synthesis of quantum-dot doped microparticles." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.686186.

Full text

Abstract:

A key factor in the success of using laser scanning confocal microscopy to image molecular systems such as fluorescent microspheres, is the requirement for the microspheres to have a high intensity of florescence whilst having a high photobleaching resistance. In this work, a number of straightforward and reliable synthetic procedures to prepare silica and PMMA microspheres using quantum dots as the fluorescent material are described. Experimental data reveals that quantum dots perform as an excellent fluorophore, showing significantly greater photobleaching resistance as compared to organic d

APA, Harvard, Vancouver, ISO, and other styles

2

Gégout, Claire. "Synthesis and characterization of an inhibitor labeled quantum dot affinity probe /." Connect to full text in OhioLINK ETD Center, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1217282443.

Full text

Abstract:

Thesis (M.S.)--University of Toledo, 2008.<br>Typescript. "Submitted as partial fulfillment of the requirements for the Master of Science degree in Chemistry." "A thesis entitled"--at head of title. Bibliography: leaves 82-85.

APA, Harvard, Vancouver, ISO, and other styles

3

Gegout, Claire. "Synthesis and Characterization of an Inhibitor Labeled Quantum Dot Affinity Probe." University of Toledo / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1217282443.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hu, Nan [Verfasser]. "Synthesis, characterization and single particle spectroscopy of semiconductor quantum dots and quantum dot oligomers / Nan Hu." Mainz : Universitätsbibliothek Mainz, 2016. http://d-nb.info/1120739675/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Murray, Christopher Bruce. "Synthesis and characterization of II-IV quantum dots and their assembly into 3D quantum dot superlattices." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11128.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Wang, Shujun. "Synthesis of Graphene Quantum Dots and Their Applications in Sensing and Light Harvesting." Thesis, Griffith University, 2017. http://hdl.handle.net/10072/366102.

Full text

Abstract:

Graphene quantum dot (GQD) is a derivative of 2D material graphene. It normally refers to small fragments of graphene having lateral size below 100nm. Not only do GQDs inherit some of the wonder properties of bulk graphene, but they possess properties unique from bulk graphene due to the quantum confinement and edge effects. As an emerging material, GQDs presents a new open field for broad investigations, from synthesis, explanation of properties to promising applications including sensing, bio-imaging, nanomedicine (e. g. drug delivery), energy conversion (e. g. photovoltaic devices and photo

APA, Harvard, Vancouver, ISO, and other styles

7

Dickerson, Bryan Douglas. "Organometallic Synthesis Kinetics of CdSe Quantum Dots." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/27322.

Full text

Abstract:

CdSe quantum dots produced by organometallic synthesis are useful as tunable emitters for photonic devices and as multi-colored protein markers for biomedical imaging, applications requiring bright and narrow emission. A diffusion-limited model helped monitor growth rates via photoluminescence and absorbance spectroscopy, in order to characterize synthesis kinetics in stearic acid, dodecylamine, and in trioctylphosphine oxide. The nucleation rate increased with Se concentration, while the growth rate followed the Cd concentration. Emission peak widths, emission redshift rates, nanocrystal gr

APA, Harvard, Vancouver, ISO, and other styles

8

Cummins, S. S. "Synthesis and evaluation of novel ligands for quantum dot stabilisation and polymerisation studies." Thesis, Aston University, 2006. http://publications.aston.ac.uk/9810/.

Full text

Abstract:

This thesis describes the design and synthesis of a variety of functionalised phosphine oxides and sulfides, based on the structure of trioctylphosphine oxide, synthesised for the purpose of surface mO(ilification of quantum dots. The ability ofthe ligands to modify the surface chemistry via displacement ofthe original hexadecylamine capping layer of quantum dots was evaluated. Finally the surface modified quantum dots were investigated for enhancement in their inherent properties and improved compatibility with the various applications for which they were initially designed. Upon the commence

APA, Harvard, Vancouver, ISO, and other styles

9

Mahmud, Sk Al Zaheri. "Design, synthesis & evaluation of carbon quantum dot-polymer nanocomposites for cardiovascular tissue engineering applications." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/28586.

Full text

Abstract:

Cardiovascular diseases (CVD) with escalating death rates pose one of the greatest threats to global health and well-being. Thus, developing effective interventions to combat CVD are of critical importance. 3D printing fabrication of engineered cardiovascular constructs with complex, hierarchical structures is capable of producing personalized structures. The current material science advancement has drawn a great interest to the researchers towards incorporation of biodegradable materials for the implantable 3D printed scaffolds. The aim of this research work is to design, synthesis, and evalu

APA, Harvard, Vancouver, ISO, and other styles

10

Singhal, Rahul. "Logic Realization Using Regular Structures in Quantum-Dot Cellular Automata (QCA)." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/196.

Full text

Abstract:

Semiconductor industry seems to approach a wall where physical geometry and power density issues could possibly render the device fabrication infeasible. Quantum-dot Cellular Automata (QCA) is a new nanotechnology that claims to offer the potential of manufacturing even denser integrated circuits, which can operate at high frequencies and low power consumption. In QCA technology, the signal propagation occurs as a result of electrostatic interaction among the electrons as opposed to flow to the electrons in a wire. The basic building block of QCA technology is a QCA cell which encodes binary i

APA, Harvard, Vancouver, ISO, and other styles

11

Pavlopoulos, Nicholas George, and Nicholas George Pavlopoulos. "Designing Selectivity in Metal-Semiconductor Nanocrystals: Synthesis, Characterization, and Self-Assembly." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/626149.

Full text

Abstract:

This dissertation contains six chapters detailing recent advances that have been made in the synthesis and characterization of metal-semiconductor hybrid nanocrystals (HNCs), and the applications of these materials. Primarily focused on the synthesis of well-defined II-VI semiconductor nanorod (NR) and tetrapod (TP) based constructs of interest for photocatalytic and solar energy applications, the research described herein discusses progress towards the realization of key design rules for the synthesis of functional semiconductor nanocrystals (NCs). As such, a blend of novel synthesis, advance

APA, Harvard, Vancouver, ISO, and other styles

12

Nxusani, Ezo. "Synthesis and analysis of Novel Platinum group Metal Chalcogenide Metal Quantum Dot and Electrochemical Markers." University of the Western Cape, 2018. http://hdl.handle.net/11394/6424.

Full text

Abstract:

Magister Scientiae - MSc (Chemistry)<br>Although cadmium and lead chalcogenide quantum dot have excellent optical and photoluminescent properties that are highly favorable for biological applications, there still exists increasing concerns due to the toxicity of these metals. We, therefore, report the synthesis of new aqueous soluble IrSe quantum dot at room temperature utilizing a bottom-up wet chemistry approach. NaHSe and H2IrCl6 were utilized as the Se and Ir source, respectively. High-resolution transmission electron microscopy reveals that the synthesized 3MPA-IrSe Qd are 3 nm in diamete

APA, Harvard, Vancouver, ISO, and other styles

13

Bump, Buddy J. "Synthesis and Characterization of CdSe/ZnS Core/Shell Quantum Dot Sensitized PCPDTBT-P3HT:PCBM Organic Photovoltaics." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1309.

Full text

Abstract:

Durable, cheap, and lightweight polymer based solar cells are needed, if simply to meet the demand for decentralized electrical power production in traditionally “off-grid” areas. Using a blend of Poly(3-hexylthiophene-2,5-diyl) (P3HT), Phenyl-C61-butyric acid methyl ester (PCBM), and the low band-gap polymer Poly[2,6-(4,4-bis-(2- ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b′]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)] (PCPDTBT), we have fabricated devices with a wide spectral response and 3% power conversion efficiency in AM 1.5 conditions; however, this thin film system exhibits only 0.43 optica

APA, Harvard, Vancouver, ISO, and other styles

14

Diederich, Geoffrey M. "Synthesis of Zinc Telluride/Cadmium Selenide/Cadmium Sulfide Quantum Dot Heterostructures for use in Biological Applications." Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1342542873.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Thapliyal, Himanshu. "Design, Synthesis and Test of Reversible Circuits for Emerging Nanotechnologies." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3379.

Full text

Abstract:

Reversible circuits are similar to conventional logic circuits except that they are built from reversible gates. In reversible gates, there is a unique, one-to-one mapping between the inputs and outputs, not the case with conventional logic. Also, reversible gates require constant ancilla inputs for reconfiguration of gate functions and garbage outputs that help in keeping reversibility. Reversible circuits hold promise in futuristic computing technologies like quantum computing, quantum dot cellular automata, DNA computing, optical computing, etc. Thus, it is important to minimize parameters

APA, Harvard, Vancouver, ISO, and other styles

16

Sampson, Zaiyaan Begum. "Tungsten Telluride Quantum dot-based Biosensor for Alpha-Methylacyl CoA Racemase – An Emerging Prostate Cancer Biomarker." University of the Western Cape, 2019. http://hdl.handle.net/11394/7709.

Full text

Abstract:

>Magister Scientiae - MSc<br>Prostate cancer, commonly referred to as adenocarcinoma of the prostate, is the leading cause of cancer death in men in 46 countries, and it was estimated that by the end of 2018 there would approximately be 1.3 million new cases of prostate cancer worldwide. Currently, the Food and Drug Administration (FDA) approved biomarker for prostate cancer disease diagnostics Prostate Specific Antigen (PSA) is not specific to the disease itself but extends to other cases such as Benign Prostate Hyperplasia (BPH) a condition in which the prostate grows uncontrollably. This bi

APA, Harvard, Vancouver, ISO, and other styles

17

Lafferty, William Henry. "DEVELOPMENT OF A HIGH PRECISION QUANTUM DOT SYNTHESIS METHOD UTILIZING A MICROFLUIDIC REACTOR AND IN-LINE FLUORESCENCE FLOW CELL." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1317.

Full text

Abstract:

Quantum dots show great potential for use as spectral converters in solar cells, lighting applications, and biological imaging. These applications require precise control of quantum dot size to maximize performance. The quality, size, and fluorescence of quantum dots depend on parameters that are difficult to control using traditional batch synthesis processes. An alternative, high precision process was developed for the synthesis of cadmium-selenide quantum dots using a microfluidic reactor and fluorescence flow cell. The process required creating separate cadmium and selenium precursors that

APA, Harvard, Vancouver, ISO, and other styles

18

De, Puran K. "Stable Hetero-Acene Analogs of Heptacene: The Synthesis and Study of their Conductive Properties in Organic Transistors And The Photo-induced Formation of Quantum Dot – Conductive Polymers (QD:CP) for Application in Photovoltaics." Bowling Green State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1319201004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Daniels, Steven Matthew. "Synthetic methodologies for the development of quantum dot structures." Thesis, University of Manchester, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548660.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Taniguchi, Shohei. "The synthesis of CdTe-based quantum dots." Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/the-synthesis-of-cdtebased-quantum-dots(8cc049b8-ee15-4f1b-979b-5955c39393ea).html.

Full text

Abstract:

As a multipotent tool for scientific exploration, semiconductor nanoparticles, or quantum dots (QDs), have gained enormous interest in nanoscience in the past two decades. The research presented here focused on cadmium telluride (CdTe) QDs: novel synthetic methodologies were used to prepare previously inaccessible nanomaterials based on CdTe QDs. -- CdTe/CdSe/ZnSe core/shell/shell QDs were prepared by a one-pot synthesis. The resulting QDs exhibited near infrared emission, were readily dispersed in aqueous media and applied to deep tissue imaging where emission through the skin indicated the g

APA, Harvard, Vancouver, ISO, and other styles

21

Herz, Erik. "Colloidal Semiconductor Nanocrystals: A Study of the Syntheses of and Capping Structures for CdSe." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/10147.

Full text

Abstract:

Luminescent quantum dots (QDs) or rods are semiconductor nano-particles that may be used for a wide array of applications such as in electro-optical devices, spectral bar coding, tagging and light filtering. In the case under investigation, the nano-particles are cadmium-selenide (CdSe), though they can be made from cadmium-sulfide, cadmium-telluride or a number of other II-VI and III-V material combinations. The CdSe quantum dots emit visible light at a repeatable wavelength when excited by an ultraviolet source. The synthesis of colloidal quantum dot nanoparticles is usually an organo-metall

APA, Harvard, Vancouver, ISO, and other styles

22

Ganazzoli, Giacomo. "Quantum dot labelled antimalarials and investigation of their interaction with synthetic haemozoin." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29749.

Full text

Abstract:

Chloroquine (CQ) is a well-known antimalarial drug acting through the inhibition of the formation of haemozoin crystals in the Plasmodium parasite’s digestive vacuole within human infected red blood cells. The formation of haemozoin is considered a defence strategy of the parasite in order to decrease the levels of toxic ferriprotoporphyrin (Fe(III)PPIX) present in the DV. Chloroquine is supposed to be adsorbed onto the fastest growing face of the crystal, inhibiting the growth and increasing the amount of toxic Fe(III)PPIX; however, the mechanism of this interaction is still largely unproven.

APA, Harvard, Vancouver, ISO, and other styles

23

Tezsevin, Ilker. "A Study Of Catalytic Nanocarbon Synthesis By Means Of Quantum Mechanical Methods." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12613987/index.pdf.

Full text

Abstract:

Throughout this thesis work, surface nanocarbon synthesis on metal catalyst surfaces was investigated as the first step of carbon nanotube production mechanism. Study was aimed to make a comparison between the performances of selected catalyst surfaces and to find most probable mechanism for the nanocarbon synthesis on the metal catalyst surface. Formation of nanocarbon from the acetylene as carbon source on the selected Fe(111), Ni(111) and Ni(100) surfaces were studied by means of quantum mechanics. Density functional theory (DFT) was implemented periodically by using Vienna Ab-initio Simula

APA, Harvard, Vancouver, ISO, and other styles

24

Page, Robert Christopher. "Synthesis of cadmium chalcogenide based quantum dots for enhanced multiple exciton generation." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/synthesis-of-cadmium-chalcogenide-based-quantum-dots-for-enhanced-multiple-exciton-generation(0e0f2e8d-ea7f-42dc-abef-f230e20eabe5).html.

Full text

Abstract:

Quantum dots (QDs) have the potential to produce more than one exciton per incident photon, if the photon energy is greater than twice the band gap energy. This process of multiple exciton generation (MEG) has the potential to lead to a step change in the efficiency of solar panels, by utilising energy commonly wasted as heat in conventional solar cells. A wide range of CdSe/CdTe and CdTe/CdSe quantum dots with and without a CdS shell were synthesised with varying core sizes and shell thicknesses. The excited state dynamics of these samples were studied with transient absorption and photolumin

APA, Harvard, Vancouver, ISO, and other styles

25

Hagelin, Alexander. "ZnO nanoparticles : synthesis of Ga-doped ZnO, oxygen gas sensing and quantum chemical investigation." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-64730.

Full text

Abstract:

Doped ZnO nanoparticles were synthesized by three different methods – electrochemical deposition under oxidizing conditions (EDOC) , combustion method and wet chemical synthesis – for investigating the oxygen gas sensing response. Ga-doped ZnO was mostly synthesized but also In-doped ZnO was made. The samples were analyzed by XRD, SEM, EDX and TEM. Gas response curves are given alongside with Langmuir fitted curves and data for pure ZnO and Ga-doped ZnO. DFT quantum chemical investigation of cluster models ZnO nanoparticles were performed to evaluate defect effects and oxygen and nitrogen diox

APA, Harvard, Vancouver, ISO, and other styles

26

Straistari, Tatiana. "Synthesis and study of coordination compounds of cobalt, copper, palladium and nickel with polydentate ligands containing sulfur." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4352.

Full text

Abstract:

Ce travail porte sur la synthèse, la caractérisation et l’évaluation en catalyse de réduction des protons en dihydrogène, de nouveaux complexes de Ni(II), Co(III), Cu(II) et Pd(II) basés sur des ligands de type thiosemicarbazone. La nature de l’espèce catalytique active a été étudiée par voltampérométrie cyclique et des propositions de mécanisme ont été formulés sur la base de calcul quantique de type DFT.Le premier chapitre introduit le contexte scientifique. Le second chapitre concerne la synthèse et la caractérisation des ligands de type N2S2 et des complexes mononucléaires associés de Ni,

APA, Harvard, Vancouver, ISO, and other styles

27

Cuzan, Olesea. "Synthesis and characterization of new transition metal complexes for catalytic oxidation and electrolytic proton reduction." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4356/document.

Full text

Abstract:

De nos jours, la capacité à synthétiser de nouveaux catalyseurs métallique bioinspirés pour améliorer et élargir le spectre d'activité catalytique est d’une importance capitale pour une chimie respectueuse de notre environnement.Cette thèse se concentre sur la conception de nouveaux complexes de métaux de transition (cuivre et palladium) basés sur deux classes différentes de ligands organiques : les benzotriazolyle-phénolates et les phosphonates. La synthèse et la caractérisation de nouveaux composés a été réalisée par différentes méthodes physico-chimiques (électrochimie, EPR, UV-vis, IR, cri

APA, Harvard, Vancouver, ISO, and other styles

28

Straistari, Tatiana. "Synthesis and study of coordination compounds of cobalt, copper, palladium and nickel with polydentate ligands containing sulfur." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4352.

Full text

Abstract:

Ce travail porte sur la synthèse, la caractérisation et l’évaluation en catalyse de réduction des protons en dihydrogène, de nouveaux complexes de Ni(II), Co(III), Cu(II) et Pd(II) basés sur des ligands de type thiosemicarbazone. La nature de l’espèce catalytique active a été étudiée par voltampérométrie cyclique et des propositions de mécanisme ont été formulés sur la base de calcul quantique de type DFT.Le premier chapitre introduit le contexte scientifique. Le second chapitre concerne la synthèse et la caractérisation des ligands de type N2S2 et des complexes mononucléaires associés de Ni,

APA, Harvard, Vancouver, ISO, and other styles

29

Cuzan, Olesea. "Synthesis and characterization of new transition metal complexes for catalytic oxidation and electrolytic proton reduction." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4356.

Full text

Abstract:

De nos jours, la capacité à synthétiser de nouveaux catalyseurs métallique bioinspirés pour améliorer et élargir le spectre d'activité catalytique est d’une importance capitale pour une chimie respectueuse de notre environnement.Cette thèse se concentre sur la conception de nouveaux complexes de métaux de transition (cuivre et palladium) basés sur deux classes différentes de ligands organiques : les benzotriazolyle-phénolates et les phosphonates. La synthèse et la caractérisation de nouveaux composés a été réalisée par différentes méthodes physico-chimiques (électrochimie, EPR, UV-vis, IR, cri

APA, Harvard, Vancouver, ISO, and other styles

30

Cao, Jieming. "Synthesis and characterization of lead-based core-shell-shell quantum dots and studies on excitation-dependent quantum yield measurement." Thesis, 2015. http://hdl.handle.net/1828/6417.

Full text

Abstract:

Nano-sized semiconductors, known as quantum dots (QDs), are one of the hottest research areas in recent years. The energy gaps of QDs change with their diameters, giving them size-dependent optical properties. By controlling reaction conditions, people are able to make QDs that can emit in certain wavelength ranges. So far, QDs have shown great potential in telecommunication, bio-imaging, single-photon laser source, etc. This thesis starts with Chapter 1, which first introduces the finding of QDs and why they have such special properties. The quantum confinement and energy gap are discusse

APA, Harvard, Vancouver, ISO, and other styles

31

Yi-Feng, Tsou, and 鄒怡鋒. "Synthesis of Magnetic Nanocomposite Beads with CdSe Quantum Dot Shell." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/40967359379173960492.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

賴建丞. "Minimum-Crossing Layout Synthesis for Quantum-Dot Cellular Automata (QCA)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/43253686911218981810.

Full text

Abstract:

碩士<br>國立交通大學<br>資訊科學系所<br>94<br>Quantum-dot cellular automata (QCA) is a novel nano-scale computing mechanism that can represent binary information based on spatial distribution of electron charge configuration in molecules. A QCA physical synthesis flow consists of four stages: partitioning, placement, pin-assignment and channel routing. Because wire crossings in QCA layout increase the complexity of circuit layout design, this work focus on minimizing wire crossings of the circuit under synthesis. In this paper, the problem of QCA placement is mapped to a famous problem “k-layer bigraph cro

APA, Harvard, Vancouver, ISO, and other styles

33

Toufanian, Reyhaneh. "Synthesis and characterization of indium phosphide-based quantum dot heterostructures." Thesis, 2021. https://hdl.handle.net/2144/41994.

Full text

Abstract:

Colloidal semiconductor nanocrystal quantum dots (QDs) have been extensively studied for applications in optoelectronic devices, biosensing, and imaging. Recent interest has turned to heavy metal-free compositions such as indium phosphide as an alternative to cadmium- and lead-based materials. Photoluminescence emission from InP QDs is size-tunable over a wide spectral range, providing superior color tuning compared to traditional CdSe QD but their optical properties and chemical synthesis is less well established. This study examines how InP-based heterostructures can be engineered to enhance

APA, Harvard, Vancouver, ISO, and other styles

34

Huang, Shu-Hua, and 黃舒崋. "Hot-Injection synthesis of PbS quantum dots for applications in colloidal quantum dot solar cells." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nk7w5h.

Full text

Abstract:

碩士<br>國立中興大學<br>奈米科學研究所<br>106<br>This study focuses on the synthesis of PbS quantum dots as well as its application in colloidal quantum dot solar cells (CQDSCs). The fabrication of CQDSCs is divided into three parts：(1) Synthesis of PbS quantum dots by chemical hot injection. (2) Deposition of CdS thin films using RF magnetron sputtering. (3) Assembly of solar cells. First, a CdS film was sputtered on FTO glass. Second, a PbS colloidal quantum dot layer was coated on top of the CdS film using the layer-by-layer deposition method. Finally, an Au electrode was deposited to form the electrical

APA, Harvard, Vancouver, ISO, and other styles

35

WU, YI-CHU, and 吳逸莒. "Synthesis and Application of Cadmium selenide quantum dot-multiwalled carbon nanotube Nanohybrids." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/uwsv8w.

Full text

Abstract:

碩士<br>國立高雄大學<br>化學工程及材料工程學系碩士班<br>104<br>Characterization of the poly(lactic acid) (PLA)-grafted cadmium selenide (CdSe) quantum dots (QDs) and PLA-grafted CdSe quantum dots on multiwalled carbon nanotubes hybrid materials was investigated by differential scanning calorimetry (DSC), transmission electron microscopy (TEM), fluorescence spectroscopy (FL) and polarized optical microscopy (POM). In this study, the thioglycolic acid-capped CdSe QDs were prepared by the hydrothermal method, and discussed the resultant optical characteristics and microstructures. With the increase of the degree of re

APA, Harvard, Vancouver, ISO, and other styles

36

Lee, Chun-Yen, and 李君彥. "Synthesis of ternary Ag8SnS6 quantum dot semi-conductor and its photovoltaic characteristics in quantum dots-sensitized solar cells." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/27647159533691803013.

Full text

Abstract:

碩士<br>國立中興大學<br>物理學系所<br>104<br>Ag8SnS6 quantum dots (QDs) were successfully synthesized by using successive ionic layer adsorption reaction deposition (SILAR) method. Ag8SnS6 QDs were formed after a two-stage of SILAR and post annealing at 400℃ in N2. X-ray diffraction (XRD), transmission electron microscopy (TEM) and an UV-Vis spectroscopy measurements were performed to characterize the properties. The TEM images confirmed that the particle sizes of Ag8SnS6 QDs are ~12-20 nm. The UV-Visible measurement showed that Ag8SnS6 grown by the best condition has energy gap of 1.69 eV which covers 300

APA, Harvard, Vancouver, ISO, and other styles

37

Chen, Ying-Ju, and 陳映汝. "The Study on Photovoltaic Device of Lead Sulfide Quantum Dot via Low-toxic Precursor Synthesis." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/f9t36c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Hsu, Yu-Ren, and 徐佑任. "Aqueous synthesis of quaternary quantum dot and its applications in ion sensing and cell imaging." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xn322u.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>化學工程系<br>106<br>Herein, we present an aqueous based facile microwave-assisted synthesis of ZAISe and ZCISe quaternary quantum dots (QDs). ZAISe was synthesized by using by using 3-mercaptopropionic acid(MPA) as a stabilizing agent, however, ZCISe was using glutathione (GSH) and citric acid trisodium salt (SC) as the dual stabilizing agents. Furthermore, by using the composition-dependent strategy we demonstrated tunable bandgap properties of the synthesized QDs. It was reported that using higher energy band gap materials like ZnS decreases the surface defects of core QDs to e

APA, Harvard, Vancouver, ISO, and other styles

39

Barman, Monoj Kumar. "Carbon-Dot Based Hybrid Nanomaterials: Synthesis and Spectroscopic Investigation." Thesis, 2019. http://hdl.handle.net/10821/8278.

Full text

Abstract:

Recently, carbon dots have gained a prosperous interest due to their versatile applicability in the field of optoelectronics, biomedicine, sensing and catalysis. Low-toxicity, high photostability, high aqueous solubility of carbon dots make it a perfect alternative over traditional quantum dots. The origin of photoluminescence property is not clearly understood yet. It is believed that the conjugated core and the surface groups are responsible for the fluorescence property. These materials are promising for optoelectronic applications because of their electron accepting and donating properties

APA, Harvard, Vancouver, ISO, and other styles

40

Shiding, M., A. Eychmüller, and Stephen G. Hickey. "Artificial Supermolecule: Progress in the Study of II-V Colloidal Semiconductor Nanocrystals." 2012. http://hdl.handle.net/10454/16721.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Chen, Min-Yi, and 陳旻億. "Synthesis and characterization of AgInSe2 quantum dot for photodetector& One step, room temperature synthesis of tin perovskite nanoplate of photoluminescence material." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/umjrr5.

Full text

Abstract:

碩士<br>國立臺灣大學<br>化學研究所<br>105<br>We tried to use ternary semiconductor – AgInSe2 quantum dot as absorbing layer in photodetector. With a bulk bandgap energy of 1.19~1.24 eV, AgInSe2 can effectively absorb light from visible light to near infrared, which is expected to have variety applications in optoelectronic fields. Quantum material has the advantages of its high absorption coefficient, high quantum yield, photo irradiation stability and low-cost solution-based fabrication techniques for large-scale production. Besides, searching low-toxicity material is also a big issue for enviromental pro

APA, Harvard, Vancouver, ISO, and other styles

42

Zhang, Meng. "Part I: Morphology Transformation of Block Copolymer Micelles containing Quantum Dots in the Corona Part II: The Synthesis and Self-assembly of New Polyferrocenylsilane Block Copolymers." Thesis, 2013. http://hdl.handle.net/1807/43769.

Full text

Abstract:

My Ph.D. thesis is presented in two parts. In the first part, I describe the preparation of organic-inorganic hybrid micelles formed from poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) block copolymers and CdSe quantum dots (QDs). Several distinct morphologies were observed including, spheres, finite-sized wormlike networks and clusters of hollow vesicles. A series of experiments were carried out to explore whether these hybrid colloids were thermodynamically stable or formed under kinetic control. Upon addition of 2-propanol (2-PrOH) to a chloroform solution containing a mixture of PS404-b-P4VP7

APA, Harvard, Vancouver, ISO, and other styles

43

Panthani, Matthew George. "Colloidal nanocrystals with near-infrared optical properties : synthesis, characterization, and applications." 2011. http://hdl.handle.net/2152/19825.

Full text

Abstract:

Colloidal nanocrystals with optical properties in the near-infrared (NIR) are of interest for many applications such as photovoltaic (PV) energy conversion, bioimaging, and therapeutics. For PVs and other electronic devices, challenges in using colloidal nanomaterials often deal with the surfaces. Because of the high surface-to-volume ratio of small nanocrystals, surfaces and interfaces play an enhanced role in the properties of nanocrystal films and devices. Organic ligand-capped CuInSe2 (CIS) and Cu(InXGa1-X)Se2 (CIGS) nanocrystals were synthesized and used as the absorber layer in proto

APA, Harvard, Vancouver, ISO, and other styles

44

Li, Hsiang-Tien, and 李享典. "Synthesis and Identification of ZnS Quantum Dot Inside Layered and Mesoporous Materials and Their Application in Photocatalytic Reactions." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/64935406401690061802.

Full text

Abstract:

碩士<br>國立中興大學<br>化學系所<br>98<br>Greenhouse gases have caused global climate anomalies, and it will be more serious within the next few years. Therefore the reduction of carbon dioxide indeed becomes indispensable. The apporach of this study is to adsorb the carbon dioxide from the air to in a matrix with excellent CO2 adsorption capacity. Then carbon dioxide reduction is performed by using light to excite semiconductor photocatalyst to generate electron-hole pair. The matrices used in this study includes Layered Double Hydroxide (LDH) and SBA-15 mesoporous materials. LDH is a good gas matrix to

APA, Harvard, Vancouver, ISO, and other styles

45

LIN, I.-CHING, and 林宜靜. "The study on the synthesis of Ag-In-S quantum dot and the formation of zinc sulfide shell." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/h9usgm.

Full text

Abstract:

碩士<br>國立高雄師範大學<br>化學系<br>107<br>This thesis reports the study on the synthesis of ternary ZAIS/ZnS core-shell quantum dots and the formation of zinc sulfide shell.Three metal precursor complexes were obtained firstly by the reactions of, silver, indium and zinc nitrates and dithiocarbamate. The ZAIS QDs were obtained by the by using oleyamine as solvent and protective agent.The ZAIS/ZnS were obtained by using 1-Octadecene and oleyamine as solvent.The product identification and purity analysis were carried out by nuclear magnetic resonance spectroscopy and elemental analysis. The optical proper

APA, Harvard, Vancouver, ISO, and other styles

46

Sadeghimakki, Bahareh. "Fabrication and Characterization of Nanowires and Quantum Dots for Advanced Solar Cell Architectures." Thesis, 2012. http://hdl.handle.net/10012/6699.

Full text

Abstract:

The commercially available solar cells suffer from low conversion efficiency due to the thermalization and transmission losses arising from the mismatch between the band gap of the semiconductor materials and the solar spectrum. Advanced device architectures based on nanomaterial have been proposed and being successfully used to enhance the efficiency of the solar cells. Quantum dots (QDs) and nanowires (NWs) are the nanosclae structures that have been exploited for the development of the third generation solar cell devices and nanowire based solar cells, respectively. The optical and electric

APA, Harvard, Vancouver, ISO, and other styles

47

Chiu, Sheng-Hui, and 邱勝暉. "Rapid microwave-assisted synthesis of heteroatom-doped carbon quantum dot for tumor-targeted bioimaging and anticancer drug delivery applications." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/21279859491629145651.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>化學工程系<br>104<br>Carbon quantum dot (CQD) exhibits unique properties such as tunable fluorescence, high photostability, chemical inertness, low toxicity, and biocompatibility, which are beneficial for bioimaging application. Herein, we synthesized heteroatom doped CQD by using a one-pot microwave method. Doping heteroatom elements into CQD could modulate the fluorescent properties and improve the functionality. Part Ⅰ Sulphur (S), boron (B), and phosphorous (P) heteroatom doped CQD (S-CQD, B-CQD, and P-CQD) were synthesized within 10 min by using a one-pot microwave method. Do

APA, Harvard, Vancouver, ISO, and other styles

48

van, Embden Joel Leonard. "Synthesis and optical properties of CdSe core and core/shell nanocrystals." 2008. http://repository.unimelb.edu.au/10187/3225.

Full text

Abstract:

The synthesis of nanocrystals is unique compared to the formation of larger micron-sizesspecies as the final crystal sizes are not much larger than the primary nuclei. As a consequencethe final outcome of a nanocrystal synthesis i.e mean crystal size, concentrationand standard deviation is almost solely determined by the end of the nucleation phase. Directingthe growth of crystals beginning from aggregates of only tens of atoms into maturemonodisperse nanocrystals requires that the governing kinetics are strictly controlled at everymoment of the reaction. To effect this task various different

APA, Harvard, Vancouver, ISO, and other styles

49

Liu, Yin-Hsin, and 劉銀欣. "The Synthesis and Characterization of Novel All-Inorganic Perovskite Quantum Dot and Their Application in Conversion Efficiency Enhancement of Silicon Solar Cells." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/rrnxfz.

Full text

Abstract:

碩士<br>國立交通大學<br>應用化學系碩博士班<br>108<br>All inorganic perovskite quantum dots, CsPbX3 QDs (X = Cl, Br, I), are regarded as typical materials with a broad absorption band, high quantum efficiency and adjustable emission wavelength in the visible range. However, CsPbX3 QDs synthesized by the existing methods are suffering from surface defects due to weak binding of ligands and surfaces. In order to resolve this problem, we used Octylphosphonic acid (OPA) as a new ligand with ligand exchange method to improve the quantum efficiency and environmental stability of the CsPbX3 QDs, then analyzed thier cr

APA, Harvard, Vancouver, ISO, and other styles

50

Lan, Li Hsuan, and 藍立璿. "Silver sulfide quantum dot syntheses by microfluidic reaction and its applications in bioimaging." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/ar9866.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!