Field Effect Transport and Trapping in Regioregular Polythiophene Nanofibers

Merlo, Jeffrey A.; Frisbie, C. Daniel

doi:10.1021/jp047023a

Cited by 240 publications

(237 citation statements)

References 77 publications

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“…Hybrid metal-CP NWs are attractive candidates for nanodiodes and transistors [Pinto (2003); Park (2004); Merlo & Frisbie (2004); Pinto (2009)] as well as photonic [Guo (2008);Camposeo (2009)] and electrochromic devices [Cho & Lee (2008)]. This high applicative potential comes from the fact that they make profit from intrinsic properties of CPs (lowcost, flexibility, environmental stability, high biocompatibility) concomitantly with other properties stemming from their low-dimensionality (large surface-to-volume ratio and enhanced properties compared to bulk materials).…”

Section: Tunable Electronic Behavior Of Hybrid Metal-cp Nwsmentioning

confidence: 99%

Conjugated Polymer and Hybrid Polymer-Metal Single Nanowires: Correlated Characterization and Device Integration

Gence¹,

Callegari²,

Melinte³

et al. 2010

Nanowires Science and Technology

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Section: Tunable Electronic Behavior Of Hybrid Metal-cp Nwsmentioning

confidence: 99%

Conjugated Polymer and Hybrid Polymer-Metal Single Nanowires: Correlated Characterization and Device Integration

Gence¹,

Callegari²,

Melinte³

et al. 2010

Nanowires Science and Technology

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“…Furthermore the two low-energy peaks at 550 and 600 nm of P3HT were used as indicator for highly crystalline P3HT phases [34][35][36][37]. It can be seen that bare P3HT/ZnO and modified P3HT/1-ZnO blends have almost absorption spectra with identical peak ratios.…”

Section: Resultsmentioning

confidence: 99%

P-type semiconductor surfactant modified zinc oxide nanorods for hybrid bulk heterojunction solar cells

Dkhil

Gaceur

Dachraoui

et al. 2017

Solar Energy Materials and Solar Cells

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In this work, hybrid bulk heterojunction solar cells based on surfactant-modified zinc oxide nanorods (ZnO NRs) blended with poly-(3-hexylthiophene) (P3HT) are presented. (E)-2-cyano-3-(5'-(4-(dibutylamino)styryl)-2,2'-bithiophen-5-yl)acrylic acid (1), a p-type semiconductor, is used as grafted interfacial surfactant on ZnO NRs, named 1-ZnO NRs, in order to improve simultaneously the nanoscale morphology of the hybrid polymer blend as well as the electronic properties of the heterojunction interface. Our studies reveal that the ligand modification of ZnO NRs leads to strongly improved aggregate free P3HT/ZnO blends that show five time increased power conversion efficiency and corresponding photo-generated charge carrier transport compared to untreated ZnO NRs. From transient absorption spectroscopy, it was found that recombination kinetics were similar in the device using untreated ZnO and modified 1-ZnO NRs, respectively, pointing to a major impact of the ligand in the improvement of the blend morphology. Corresponding device optimization lead to improvements of FF and Voc to values comparable to P3HT blends using fullerene acceptors, but photocurrent density of the P3HT/1-ZnO solar cells was found low even after optimization. The latter could be addressed to destruction of long rang organization of P3HT induced by the presence of the ZnO NRs as well as low electron transport inside the blend. Dr. Christine VIDELOT-ACKERMANNTél : +33. (0) This article represents original work which has not been published previously and is not under consideration for publication elsewhere. By our best knowledge, no conflict of interest exists regarding the submission of this manuscript.Finally, we would like to thank you in advance for your time in considering and processing our manuscript. We look forward to hearing from you. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 ligand in the improvement of the blend morphology. Corresponding device optimization lead to improvements of FF and V oc to values comparable to P3HT blends using fullerene acceptors, but photocurrent density of the P3HT/1-ZnO solar cells was found low even after optimization. The latter could be addressed to destruction of long rang organization of P3HT Yoursinduced by the presence of the ZnO NRs as well as low electron transport inside the blend.

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“…For example, anisotropy of organic nanowires (ONWs) facilitates the propagation of light and electricity in specific spatial directions [117]. The π-π conjugated morphology [118,119] of ONWs [120] coupled with established charge transport according to the molecular packing orientation [121,122] provides favorable emergent properties for electronic devices and highly efficient energy harvesting devices with extremely high aspect ratio and large surface area-to-volume ratio [123][124][125]. Solid, 1D organic nanorods (ONRs) with moderate aspect ratio and high surface area have provided good performance for supercapacitor electrodes [86] and greatly improved photostability for biological imaging applications [126].…”

Section: Organic 1d Semiconductor Systemsmentioning

confidence: 99%

Electrospinning for nano- to mesoscale photonic structures

et al. 2016

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Abstract:The fabrication of photonic and electronic structures and devices has directed the manufacturing industry for the last 50 years. Currently, the majority of small-scale photonic devices are created by traditional microfabrication techniques that create features by processes such as lithography and electron or ion beam direct writing. Microfabrication techniques are often expensive and slow. In contrast, the use of electrospinning (ES) in the fabrication of microand nano-scale devices for the manipulation of photons and electrons provides a relatively simple and economic viable alternative. ES involves the delivery of a polymer solution to a capillary held at a high voltage relative to the fiber deposition surface. Electrostatic force developed between the collection plate and the polymer promotes fiber deposition onto the collection plate. Issues with ES fabrication exist primarily due to an instability region that exists between the capillary and collection plate and is characterized by chaotic motion of the depositing polymer fiber. Material limitations to ES also exist; not all polymers of interest are amenable to the ES process due to process dependencies on molecular weight and chain entanglement or incompatibility with other polymers and overall process compatibility. Passive and active electronic and photonic fibers fabricated through the ES have great potential for use in light generation and collection in optical and electronic structures/ devices. ES produces fiber devices that can be combined with inorganic, metallic, biological, or organic materials for novel device design. Synergistic material selection and postprocessing techniques are also utilized for broad-ranging applications of organic nanofibers that span from biological to electronic, photovoltaic, or photonic. As the ability to electrospin optically and/or electronically active materials in a controlled manner continues to improve, the complexity and diversity of devices fabricated from this process can be expected to grow rapidly and provide an alternative to traditional resource-intensive fabrication techniques.

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Field Effect Transport and Trapping in Regioregular Polythiophene Nanofibers

Cited by 240 publications

References 77 publications

Conjugated Polymer and Hybrid Polymer-Metal Single Nanowires: Correlated Characterization and Device Integration

Conjugated Polymer and Hybrid Polymer-Metal Single Nanowires: Correlated Characterization and Device Integration

P-type semiconductor surfactant modified zinc oxide nanorods for hybrid bulk heterojunction solar cells

Electrospinning for nano- to mesoscale photonic structures

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