Conjugated Oligothiophene-Dendron-Capped CdSe Nanoparticles:  Synthesis and Energy Transfer

Locklin, Jason; Patton, Derek L.; Deng, Shiqiang; Baba, Akira; Millan, Mitchel D.; Advíncula, Rigoberto C.

doi:10.1021/cm048961q

Cited by 92 publications

(90 citation statements)

References 26 publications

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“…Alternatively, new functional, smart ligands were introduced bearing thermally cleavable chains to partly remove the capping sphere [46] or conjugated side groups to enhance charge dissociation and charge transport [47,48]. In the first case, e.g.…”

Section: In Situ Versus Classical Approachmentioning

confidence: 99%

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

Rath¹,

Trimmel²

2014

Hybrid Materials

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Hybrid solar cells based on conjugated polymers and inorganic semiconducting nanoparticles combine beneficial properties of organic and inorganic semiconductors and are, therefore, an exciting alternative to pure organic or inorganic solar cell technologies. Several approaches for the fabrication of hybrid solar cells are already elaborated and explored. In the last years routes have emerged, where the nanoparticles are prepared directly in the matrix of the conjugated polymer. Here, the conjugated polymer prevents the nanoparticles from excessive growth and thereby makes additional capping agents obsolete. This review focuses on in situ preparation methods of inorganic semiconducting nanoparticles in conjugated polymers in view of applications in hybrid solar cells. The details, advantages and disadvantages of the different in situ methods are critically examined and put in comparison to the classical route where pre-synthesized nanoparticles are used. Various key factors influencing the solar cell performance as well as future strategies for increasing the overall efficiency of hybrid solar cells prepared via in situ routes are discussed. KeywordsInorganic-organic hybrid solar cell • Nanocomposite • OPV

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Section: In Situ Versus Classical Approachmentioning

confidence: 99%

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

Rath¹,

Trimmel²

2014

Hybrid Materials

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“…Another approach is to use an electroactive ligand, which mediates the electron transfer between CdSe nanoparticles and conjugated polymers. [30,31] These results show the potential of the use of ligands for controlling the properties of polymer/inorganic nanoparticles blends.…”

Section: Improving the Performance Of Mdmo-ppv/nc-zno Solar Cellsmentioning

confidence: 77%

Device Operation of Conjugated Polymer/Zinc Oxide Bulk Heterojunction Solar Cells

Koster

Strien

Beek

et al. 2007

Adv Funct Materials

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Solar cells based on a poly(p‐phenylene vinylene) (PPV) derivative and zinc oxide nanoparticles can reach a power conversion efficiency of 1.6 %. The transport of electrons and holes in these promising devices is characterized and it is found that the electron mobility is equal to 2.8 × 10–9 m2 V–1 s–1, whereas the hole mobility amounts to 5.5 × 10–10 m2 V–1 s–1. By modeling the current–voltage characteristics under illumination it is found that the performance of PPV/zinc oxide solar cells is limited by the charge‐carrier mobilities. Subsequently, how to further improve the efficiency is discussed.

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“…[155][156][157] Mixing of NCs with polymers was also shown to result in enhanced energy transfer from the polymer to the NCs. 155,158 In addition to the polymer blends and surface functional oligomers, functionalized semiconducting polymers have also been designed in order to specifically modify the NCs 85 (Fig. 9a).…”

Section: Technology Driven Exploration Of Hybrid Materialsmentioning

confidence: 99%

“…9b). The surface-active side chains of the polymer were utilized in order to trap the NCs via a ligand-exchange reaction 158 ( Fig. 9c).…”

Section: Technology Driven Exploration Of Hybrid Materialsmentioning

confidence: 99%

“…Synthesis of polymer-modified NCs, redrawn according to a), 85 b) 156 and c). 158 Hybrid materials for biomedical applications.-Nanomaterials are novel systems with the potential applications for imaging and therapeutic. [193][194][195][196][197] Nanoparticulate imaging and therapeutic agents exhibit several advantages, including tunable size, high agent loading, tailorable surface properties, controllable or stimuliresponsive drug release kinetics, improved pharmacokinetics, and biocompatibility.…”

Section: Technology Driven Exploration Of Hybrid Materialsmentioning

confidence: 99%

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Review—Organic-Inorganic Hybrid Functional Materials: An Integrated Platform for Applied Technologies

Mir

Nagahara

Thundat

et al. 2018

J. Electrochem. Soc.

305

156

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Hybrid functional materials, constituting both inorganic and organic components, are considered potential platforms for applications in extremely diverse fields such as optics, micro-electronics, transportation, health, energy, energy storage, diagnosis, housing, environment and the highly relevant area is Internet of Things (IoT). Material properties of hybrid materials can be tuned by modification of the composition on the molecular scale to produce smart materials. Cross-cutting approaches, to synergistically couple molecular engineering and processing allows to tailor complex hybrid systems of various shapes with perfect control over size, composition, functionality, and morphology. The detailed description and discussion of variety of hybrid functional organicinorganic materials and their contribution in the designing of specific modern technologies is the prime focus of this review. There is an enormous demand for hybrid materials to provide technological breakthroughs with the most sought after being the enabling of the IoT. Interest in the field of IoT will witness exponential growth over the next decade as markets realize the true potential of realtime data acquisition for various entertainment, knowledge dissemination, defense, environmental, and healthcare applications. Many of the well-established materials, such as metals, 1 ceramics, 2-4 or plastics 5,6 cannot fulfill all technological desires for the various new applications. In addition to the early interest in structural hybrid materials based on carbon-silicon networks, many recent efforts have centered on the design of functional hybrid materials which harness the chemical activity of their components. This approach has been successfully used in recent years in the design of hybrid polymers 7 with special emphasis on structural hybrid materials based on mixed silicon-carbon networks prepared by sol-gel methods [8][9][10][11][12] which can also entrap additional active species. 13 In this field the stakes are high and scientists aim at producing structural materials with properties between those of inorganic glasses and organic polymers.8 But the expectations go beyond mechanical strength and thermal and chemical stability. These new materials are also sought for improved optical, 14-17 and electrical 18,19 properties, luminescence, 12,20-25 ionic conductivity, [26][27][28] and selectivity, 29-32 as well as chemical [33][34][35] or biochemical 36-38 activity. Chemical activity is of core importance in functional materials. Sensors, selective membranes, all sorts of electrochemical devices, from actuators to batteries or supercapacitors, supported catalysts or photoelectrochemical energy conversion cells are some important devices based on hybrid functional materials.Hybridization is a multifaceted strategy. In some cases, conducting organic polymers act just as a solid polymeric support for active species, whereas in other hybrid systems the activity of organic and inorganic species combines to reinforce or modify each other. But in every case ...

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Conjugated Oligothiophene-Dendron-Capped CdSe Nanoparticles: Synthesis and Energy Transfer

Cited by 92 publications

References 26 publications

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

Device Operation of Conjugated Polymer/Zinc Oxide Bulk Heterojunction Solar Cells

Review—Organic-Inorganic Hybrid Functional Materials: An Integrated Platform for Applied Technologies

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