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Relevant bibliographies by topics / Light emitting diodes. Conjugated polymers Fluorene / Dissertations / Theses

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Dissertations / Theses on the topic 'Light emitting diodes. Conjugated polymers Fluorene'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Herguth, Petra. "Development and synthesis of luminescent conjugated copolymers and their fabrication into polymer light-emitting diodes /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/10587.

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2

Ho, Cheuk Lam. "Conjugated metal-organic phosphorescent materials and polymers containing fluorene and carbazole units." HKBU Institutional Repository, 2007. http://repository.hkbu.edu.hk/etd_ra/808.

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3

Evans, N. R. "Phosphorescent conjugated polymers for light-emitting diodes." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598900.

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This dissertation describes work done to improve the efficiency of conjugated-polymer organic light-emitting diodes (OLEDs) by harvesting both singlet and triplet excitons as electroluminescence. The electroluminescence quantum efficiencies of OLEDs based on the fluorescent conjugated polymer poly(9,9-dioctyl-9<i>H</i>-fluorene-2,7-diyl) 1.08 have been improved through the design, synthesis and application of new phosphorescent conjugated polymers. A study of simple blends of phosphorescent dopants with the polymer 1.08 showed that the red-phosphorescent dopant 2.15 is better suited for observ

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4

Liu, Shi. "Development of novel conjugated polymers for light-emitting diodes /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/10569.

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5

Mitchell, William John. "Polymer-electrode interactions in light emitting diodes." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289406.

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6

Greenham, Neil Clement. "Electroluminescence in conjugated polymers." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296643.

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7

Dailey, Stuart. "A study of conjugated polymers and their applications in light-emitting diodes." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4744/.

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The initiation of research into conjugated polymer electroluminescent devices in Durham is reported. The apparatus required for the fabrication and characterisation of polymer light-emitting diodes (LEDs) is outlined, and the essential assumptions and calculations required to determine their efficiency, brightness and colour are summarised. Optical and electrical characterisation of a range of polymers is reported, including polypyridine (PPY) and a range derivatives, poly(p-phenylene vinylene) (PPV) and poly(2-methoxy, 5-(2'ethyl-hexyloxy)-p-phenylene vinylene) (MEH-PPV). The optical properti

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8

Nambiar, Rakesh R. "Designing new architectures for controlling solid state properties of conjugated polymers." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33935.

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Conjugated polymers and oligomers are great materials for use in the next generation devices namely organic field effect transistors, light emitting diodes and polymeric solar cells. Apart from having the potential for developing power-efficient, flexible, robust and inexpensive devices, conjugated polymers can also be tuned by molecular design to optimize device characteristics. One key problem for the full commercial exploitation of conjugated polymers is that the charge carrier mobility of the state-of-the-art polymer semiconductors is much lower than required for many applications. The per

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9

Kaya, Deniz Tugba. "Solution Processable Benzotriazole, Benzimidazole And Biphenyl Containing Conjugated Copolymers For Optoelectronic Applications." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614753/index.pdf.

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The synthesis and optoelectronic properties of biphenyl based conjugated copolymers with varying acceptor units in the polymer backbone were investigated. The well known Donor-Acceptor Theory was used to establish the synthetic pathway for the structural modifications. Solubility issues regarding biphenyl polymer was solved by copolymerizing with soluble units. For this purpose<br>poly 4-(biphenyl-4-yl)- 4&rsquo<br>-tert butylspiro[benzo[d]imidazole-2,1&rsquo<br>-cyclohexane] (P1), poly 4-(biphenyl-4-yl)- 2- dodecyl-2H-benzo[d][1,2,3]triazole (P2) and poly(4-(5-(biphenyl-4-yl)-4-hexylthiophen-

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10

Lin, Ching-Lung, and 林慶龍. "Spiro-fluorene-acridine Polymers for Light Emitting Diodes." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/96532992408115997559.

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碩士<br>國立中央大學<br>化學研究所<br>93<br>Abstract: A series of novel light-emitting copolymers derived from spiro-fluorene-acridine and spiro-bifluorene, are prepared by palladium-catalyzed Suzuki coupling reaction.Spiro-fluoreneacridine have rigid structure so copolymers show high Tg and it can also be utilized as hole-transporting material.These polymers have good solubility in common organic solvents, such as 1,2-dichlorobenzene, CH2Cl2, THF, toluene, and o-xylene.DSC and TGA studies reveal that novel polymers possess excellent thermal stability with high glass transition temperatures (Tg >300oC).Blu

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11

Chuang, Yu-min, and 莊佑民. "The study of organic-doped conjugated polymers light emitting diodes." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/58355522718652564611.

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碩士<br>國立雲林科技大學<br>光學電子工程研究所<br>95<br>This report studied was to use different power of O2 plasma to etch ITO-coated glasses for suface modification and to get the best efficiency. It is to add the blue light which had high fluorescence efficiency and organic emitting material (BDAVBi) in the basic structure; hence, the device structure was ITO/PEDOT:PSS/PFO:BDAVBi/Ca/Al and to study to dope different concentration of BDAVBi and to observe the effect of emitting characteristics. It can be found the phenomenon that the most heavily doped concentration obtained the red shift of the device, but

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12

Wu, Chien-Chang, and 吳建璋. "Luminescence of Light Emitting Diodes of Fully Conjugated Heterocyclic Aromatic Rigid-rod Polymers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/86454166396708962841.

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博士<br>國立中山大學<br>材料科學研究所<br>91<br>Poly-p-phenylenebenzazoles (PBXs) are heterocyclic aromatic rigid-rod liquid-crystalline polymers with fully conjugated backbone having excellent thermo-oxidative, as well as dimensional stabilities. PBXs are considered to be multifunctional polymers of superior mechanical tenacity, non-linear optical response, and electrical properties. The fully conjugated PBX polymers are deemed to have excellent opto-electronic properties. In the last decade, molecular light emitting diodes (LEDs) have been investigated intensively for having distinct advantages as an advan

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13

"Study of interfacial interactions in a novel polymer light emitting device." 2005. http://library.cuhk.edu.hk/record=b5892649.

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Ho Ming Kei = 新的有機發光器件的界面研究 / 何銘基.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2005.<br>Includes bibliographical references.<br>Text in English; abstracts in English and Chinese.<br>Ho Ming Kei = Xin de you ji fa guang qi jian de jie mian yan jiu / He Mingji.<br>Abstract --- p.i<br>论文摘要 --- p.iii<br>Acknowledgements --- p.iv<br>Table of Contents --- p.v<br>List of Figures --- p.viii<br>List of Tables --- p.xiii<br>Chapter Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Overview --- p.1<br>Chapter 1.2 --- Conjugated Polymers --- p.2<br>Chapter 1.2.1 --- Electronic and g

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14

Lin, Cheng-Jui, and 林承叡. "Synthesis of New Blue Anthracene-based Conjugated Polymers and Their Applications in Polymer Light-emitting Diodes." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/62692810054724401661.

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碩士<br>國立交通大學<br>應用化學系所<br>97<br>This study focused on the synthesis of anthracene-based copolymers and their applications in polymer light-emitting diodes (PLEDs). We had synthesized six copolymers, i.e., F-T50, DPF-T5, DPF-T25, DPF-T50, TAZ5-DPF-T45 and TAZ-T50, containing 9,10-Bis (6-bromonaph thalen-2-yl)-2-tert-butylanthracene (TBADN) and 2,7-disubstituted fluorene moieties. All of these copolymers were synthesized via palladium-catalyzed Suzuki polymerization except TAZ-T50 which was synthesized by nickel-mediated Yamamoto polymerization. The first polymer F-T50 were prepared by Suzuk

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15

Balasubramanian, Arumugam, and 巴樂書. "Syntheses and Characterization of Conjugated Polymers and their Applications towards Polymeric Light Emitting Diodes and Nano-tubes." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/25608442107832528195.

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博士<br>國立清華大學<br>化學系<br>94<br>Abstract Conjugated polymers are organic semiconductors and, as such, are of great potential importance for device fabrication. Such devices include light-emitting diodes, light emitting electrochemical cells, photovoltaic cells, thin-film transistors, and plastic lasers. The discovery of electroluminescence in conjugated polymers gave an impetus to the development of light emitting devices for display technology. New monosubstituted poly(phenylacetylene)s (PPAs) P1-P6 were synthesized by using the transition metal catalyst WCl6 and organometallic cocatalyst Et3Si

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16

Lo, Chih-Nan, and 羅志楠. "Synthesis of Fluorene-based Derivatives and Polymers for the Applications of Solution Processable White Fluorescent and Phosphorescent Light Emitting Diodes." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/02852033313380982675.

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博士<br>國立交通大學<br>應用化學系碩博士班<br>99<br>The goal of this study is aimed to fabricate white fluorescent and phosphorescent light emitting diode devices by solution process. In the first part, we reported a new way to synthesize single-chain white light-emitting polyfluorenes (WPFs) with an increased molecular weight using azide-alkyne click reaction. Four basic polymers i.e. PFR1, PFG1, PFB1 and PFB2 with specific end-capping were synthesized and used to prepare the WPFs, PFR1 emits red light, PFG1 emits green light, while PFB1 and PFB2 emit blue light. All the polymers exhibited high glass transiti

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17

Huang, Szu-Po, and 黃思博. "Structure–Property Relationship in Charge Transport moiety modified Conjugated Polymers and Applications in Light-Emitting Diodes and Photovoltaic Cells." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/92482308236757097756.

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博士<br>國立清華大學<br>化學工程學系<br>95<br>This study discloses the introduction of charge transport moieties onto the conjugated polymer structures and their application on light-emitting diodes and solar cells. PPP derivatives are promising candidate deep blue materials for commercialization due to their ease to be synthesized. Since the modification of PPP derivatives through incorporating charge transport moieties are scarce, this study demonstrates for the first time to clarify the structure/property relationship, photoluminescence and electroluminescence of the charge transport moiety modified PPP

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18

Chen, Ming-Chih, and 陳明志. "Studies on the Properties and Degradation Mechanisms of Polymer Light-Emitting Diodes with Doped Conjugated Polymers as Hole Transport Layer." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/17660979831510344144.

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19

Huang, Jen-Wei, and 黃仁偉. "Light Emitting Diodes and Photovoltaic Cells of Fully Conjugated Heterocyclic Aromatic Rigid-rod Polymers Doped with Multi-wall Carbon Nanotube." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/50322082859561358625.

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博士<br>國立中山大學<br>材料科學研究所<br>95<br>Poly-p-phenylenebenzobisoxazole (PBO) and carbon nanotube (CNT) contain fully conjugated rod like backbone entailing excellent mechanical properties, thermo -oxidative stability and solvent resistance. Rigid-rod PBO is commonly processed by dissolving in methanesulfonic acid or Lewis acid. A CNT of multi-wall carbon nanotube (MWNT) was dissolved in a Lewis acid solution of PBO for dispersion, and then spun for thin film. MWNT concentration in the films was from zero up to 5 wt. %. Compared to that of pure PBO film, all PBO/MWNT composite films retained same bu

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20

Kuo, Teng-Chin, and 郭騰欽. "Studies on the Properties and Degradation Mechanisms of Polymer Light-Emitting Diodes with Doped Conjugated Polymers as Hole Transport Layer." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/76398242473646901597.

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21

Lee, Kwang Jik. "Investigation of the photo-induced charge transfer in organic semiconductors via single molecule spectroscopy techniques." 2009. http://hdl.handle.net/2152/18642.

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Photo-induced charge transfer which occurs between molecules or different parts of a large molecule is the pivotal process related to performances of organic electronics. In particular, injection of charge carriers into conjugated polymers and dissociation of photo-generated excitons at the heterojunction between a donor and acceptor system are of great importance in determining the luminescence efficiency of organic light emitting diodes (OLEDs) and solar energy conversion efficiency of organic solar cells, respectively. However, the complex nature of organic semiconductors as well as compli

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