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Relevant bibliographies by topics / N-type organic field-effect transistors (OFETs) / Dissertations / Theses

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Dissertations / Theses on the topic 'N-type organic field-effect transistors (OFETs)'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Jimenez, Edwards. "Fabrication and transport studies of n-type OFETS using aligned array carbon nanotubes electrodes." Honors in the Major Thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/574.

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We present fabrication of n-type organic field effect transistors (OFETs) using densely aligned array carbon nanotube (CNT) electrodes. The CNTs were aligned with a high linear density via dielectrophoresis (DEP) from an aqueous solution. In order to fabricate the CNT electrodes, aligned CNTs were cut by using electron beam lithography (EBL) and precise oxygen plasma etching. The n-type OFETs were fabricated in a bottom-contact configuration by depositing a thin film of C60 molecules between the CNT source and drain electrodes, and compared against a controlled C60 OFET with gold electrodes. T

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2

Bebiche, Sarah. "OTFTs de type N à base de semiconducteurs π-conjugués : fabrication, performance et stabilité". Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S105/document.

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L'objectif de ce travail de recherche est l'élaboration et l'optimisation de transistors à effet de champ organiques de type N (OTFTs). Des transistors en structure Bottom Gate Bottom Contact sont fabriqués à basse température T<120°C. Trois différentes molécules organiques conductrices d'électrons, déposées par évaporation thermiques, sont utilisées pour la couche active. Les OTFTs à base de la première molécule à corps LPP présentent de faibles mobilités à effet de champ de l'ordre de 10-5cm2/V.s. L'étude d'optimisation menée sur les conditions de dépôt de cette dernière n'a pas permis d'

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3

Gruntz, Guillaume. "Nouvelles architectures moléculaires électrodéficientes et solubles pour les transistors organiques à effet de champ de type n stables à l’air." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0217/document.

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Un des enjeux principaux de l’électronique organique est le développement de circuits associant des transistors organiques à effet de champ (OFETs) de type p et de type n stables à l’air ainsi que leur fabrication par voie liquide. Si de nombreux matériaux de type p existent, les exemples de matériaux de type n stables sont plus rares. L’objectif de ce travail de thèse a ainsi été de concevoir, de synthétiser, et de caractériser de nouvelles molécules π-conjuguées électrodéficientes solubles afin de les intégrer dans des transistors organiques à effet de champ de type n (OFETs) stables à l’air

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4

El, Habchi Nguyen Sarah. "Transistors organiques à effet de champ pour une électronique flexible et écoresponsable : étude et optimisation d'OFET de type N sur substrats biosourcés." Electronic Thesis or Diss., Rennes 1, 2022. http://www.theses.fr/2022REN1S091.

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L’utilisation de matériaux organiques permet la conception de différents dispositifs électroniques à basse température et sur différents types de substrats. Les transistors à effet de champ organiques (OFETs) en font partie, leurs performances électriques encourageantes permettent la réalisation de circuits intégrés. Cependant, ces performances et la stabilité électrique et à l’air des OFETs nécessitent encore des améliorations. Cette thèse s’inscrit dans ce contexte et se compose de deux volets principaux : 1) la réalisation d’OFETs sur substrat rigide à très basse température et 2) le transf

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5

Do, Thu Trang. "Electron deficient solution processable organic semiconductors for optoelectronic devices." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/127140/2/Thu_Trang_Do_Thesis.pdf.

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This research is a study of novel developed electron deficient semiconducting materials for optoelectronic devices. It investigates the molecular engineering aspects of new conjugated small molecular electron acceptors with desirable properties such as strong and broad absorption, high electron mobility, and suitable energy levels and good solubility for organic solar cell and organic thin film transistor applications. Furthermore the effect of alkyl chain length on solubility, thermal, optical, electrochemical properties, and device efficiencies is also studied.

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6

Goh, Roland Ghim Siong. "Carbon nanotubes for organic electronics." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/20849/1/Roland_Goh_Thesis.pdf.

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This thesis investigated the use of carbon nanotubes as active components in solution processible organic semiconductor devices. We investigated the use of functionalized carbon nanotubes in carbon nanotubes network transistors (CNNFET) and in photoactive composites with conjugated polymers. For CNNFETs, the objective was to obtain detailed understanding of the dependence of transistor characteristics on nanotubes bundle sizes, device geometry and processing. Single walled carbon nanotubes were functionalized by grafting octadecylamine chains onto the tubes, which rendered them dispersible in

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7

Goh, Roland Ghim Siong. "Carbon nanotubes for organic electronics." Queensland University of Technology, 2008. http://eprints.qut.edu.au/20849/.

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This thesis investigated the use of carbon nanotubes as active components in solution processible organic semiconductor devices. We investigated the use of functionalized carbon nanotubes in carbon nanotubes network transistors (CNNFET) and in photoactive composites with conjugated polymers. For CNNFETs, the objective was to obtain detailed understanding of the dependence of transistor characteristics on nanotubes bundle sizes, device geometry and processing. Single walled carbon nanotubes were functionalized by grafting octadecylamine chains onto the tubes, which rendered them dispersible in

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8

方柏翔. "The Study on Air Stable N-type Organic Field Effect Transistors." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/69337586046170249302.

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碩士<br>國立彰化師範大學<br>光電科技研究所<br>100<br>ABSTRACT In this study, we used F16CuPc superimposed on the PTCDI derivatives (PTCDI-C8, PTCDI-C13) to solve PTCDI organic thin film transistor in the air unstable characteristics. F16CuPc able to block the water and oxygen, let water and oxygen cannot form the trap affect the carrier transport. Therefore, we succeeded in reducing the threshold voltage 25.93 V to 18.9 V (PTCDI-C8) and 23.86 V to 18.6 V(PTCDI-C13). The field effect mobility of 0.25 cm2V-1s-1 (PTCDI-C8) and 0.4 cm2V-1s-1 (PTCDI-C13) were achieved. But used F16CuPc as water stopper layer and th

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9

Po-WeiLiang and 梁栢瑋. "Transformation of ambipolar to unipolar (N-type) pentacene-based organic field-effect transistors." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/22493540111106915619.

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碩士<br>國立成功大學<br>光電科學與工程研究所<br>98<br>This paper focuses on the transformation that the ambipolar organic field-effect transistor gradually transforms to N-type field-effect transistor. We observed that the hole flow of the ambipolar organic field-transistor gradually decreases with time, while the electron flow remains the same value. We noticed that the metal/active layer interface is the key to the process from the discussion to the experiment variables. This research proposes that the defect states at the interface affect the injection of hole. We attempt to use a model－the defects assist in

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10

Jer-WeiChang and 張哲維. "The study of n-type characteristics in pentacene-based organic field-effect transistors." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/85204733582630449485.

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11

Huang, Li-Ya, and 黃莉雅. "Synthesis and Characterization of Organic n-Type Semiconducting Materials and their Application of Organic Field-Effect Transistors." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/20183513389656311977.

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碩士<br>國立中央大學<br>化學研究所<br>94<br>In the thesis we mainly discuss n-type electron transport organic semiconductor materials. We have synthesized a series of extented π-conjugation of anhydride-based compounds. In order to increase the solubility of those compounds and enhance the n-type semiconducting properties, we transform the anhydride moieties into perfluroalkyl imide group. These compounds will be characterized and analyzed via thermogravimetric analyzer (TGA), differential scanning calorimeter (DSC), cyclic voltametry (CV), X-ray diffraction (XRD), and atomic force microscopy (AFM). Finall

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12

Chung-YuHuang and 黃崇瑜. "The study of charge transport mechanism in n-type pentacene-based organic field-effect transistors." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/82627913771625748740.

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碩士<br>國立成功大學<br>光電科學與工程學系<br>100<br>This study investigates the influence of the electronic trap states in pentacene-based organic field effect transistors (OFET) with pentacene as active layer, aluminum as source-drain electrodes, and polystyrene (PS) as dielectrics. It found that the different evaporated rates of pentacene are correlated with the amount of grain boundary which is consider as the intrinsic defects and affects the device characteristics. It also found the samples with exposing to oxygen resulting in the decay of electron mobility. This phenomenon ascribes to oxygen-related imp

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13

Chen, Yen-Tinig, and 陳彥廷. "A New N-type Bis-maleimidoanthradithiophene Material: Synthesis, Characterization and Applications for Organic Field-Effect Transistors." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/z8h65p.

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碩士<br>國立交通大學<br>應用化學系碩博士班<br>103<br>The maleimide (MI) group was incorporated into the naphthodithiophene (NDT) and anthradithiophene (ADT) moieties. Maleimidonaphthodithiophene (MINDT) and maleimidoanthradithiophene (MIADT) were synthesized successfully. Maleimidoanthra- dithiophene (MINDT) and another isomer maleimidophenanthrnodithiophene (MIPDT) were obtained accordingly. Their identities were confirmed by UV-Vis absorption spectra and a series of NMR spectroscopies including 1H, 13C, HSQC, and HMBC. The intermolecular interactions for the two molecules in CDCl3 were further supported by c

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14

Cheng-KuangWang and 王澄光. "Influence of interfacial reaction at organic/metal junction on n-type pentacene-based field-effect transistors." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/36739410831670654840.

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15

Chu, Chieh, and 朱傑. "Design and Synthesis of Heterocyclic Discotic Liquid Crystal Materials and Their Application for N-Type Organic Field-Effect Transistors." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/31158758789179624794.

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碩士<br>國立臺灣大學<br>化學研究所<br>95<br>Three series of quinoxaline-based liquid crystal materials with or without semifluorinated alkyl chains have been successfully synthesized. Their thermal stabilities, reduction potentials, and mesophase characteristics have been examined by TGA, CV, POM, DSC, and temperature-dependent PXRD, respectively. The molecular orientation and their film morphology on the substrate (SiO2/Si) with or without SAMs also have investigated by PXRD and AFM. The control of molecular orientation, to be perpendicular to the substrate treated with PFTS via fluorophilic/fluorophobi

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16

Chu, Chieh. "Design and Synthesis of Heterocyclic Discotic Liquid Crystal Materials and Their Application for N-Type Organic Field-Effect Transistors." 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2307200723250100.

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17

Wen, Je-min, and 溫哲民. "In-Situ real time Probing Thickness Dependence of the Electrical Characteristics of n-type, p-type Organic Field-Effect Transistors and manufacture CMOS inverter." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/87101875686706742628.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>100<br>This thesis has report an in situ and real-time measurement method for the electrical characteristic evolution of n-type (N,N’-dipentadecafluorooctyl-1,4,5,8-naphtalene tetracarboxylic Diimide, NTCDI-C8F15) and p-type (pentacene) organic thin film transistors (OTFTs) during the deposition of organic thin film. In the first part, we analyze the thickness dependence of pentacene OTFTs where grown the thin film at different deposition rate (0.01, 0.03 and 0.1 nm/s) on the bottom contact substrate at room temperature. We demonstrate that the carrier transport in p

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