Photoinduced electron transfer processes in fullerene–organic chromophore systems

Wróbel, Danuta; Graja, A.

doi:10.1016/j.ccr.2010.12.026

Cited by 115 publications

(64 citation statements)

References 250 publications

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“…33 In contrast, the polymer-driven assembly process allows modularity, with the potential for incorporation of practically any desired hydrophobic or amphiphilic cofactor into the same basic architecture. Future applications of polymer-based LH nanocomposites could also allow the non-covalent incorporation of biological electron carriers, 34 or carbon nanomaterials such as fullerenes 35,36 or carbon nanotubes 37 , allowing electron-active assemblies and new functional devices. Photosynthetic membranes are highly responsive, often changing the composition and organization of LH pigment-protein components in response external stimuli, such as light intensity [38][39][40] , oxygen tension, 40 and genetic mutation.…”

Section: Figure 4 Energy Transfer and Chromophore Mobility In Suppormentioning

confidence: 99%

Diblock Copolymer Micelles and Supported Films with Noncovalently Incorporated Chromophores: A Modular Platform for Efficient Energy Transfer

et al. 2015

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We report generation of modular, artificial light-harvesting assemblies where an amphiphilic diblock copolymer, poly(ethylene oxide)-block-poly(butadiene), serves as the framework for noncovalent organization of BODIPY-based energy donor and bacteriochlorin-based energy acceptor chromophores. The assemblies are adaptive and form well-defined micelles in aqueous solution and high-quality monolayer and bilayer films on solid supports, with the latter showing greater than 90% energy transfer efficiency. This study lays the groundwork for further development of modular, polymer-based materials for light harvesting and other photonic applications

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Section: Figure 4 Energy Transfer and Chromophore Mobility In Suppormentioning

confidence: 99%

Diblock Copolymer Micelles and Supported Films with Noncovalently Incorporated Chromophores: A Modular Platform for Efficient Energy Transfer

et al. 2015

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“…For a review on photoinduced electron transfer in bonded donor-acceptor systems (not specifically focusing on the ultrafast character) see, for example, Ref. [44]. At the current state of the art, these systems cannot be modeled atomistically ab initio.…”

Section: Ultrafast Charge Separation In Prototypical Systemsmentioning

confidence: 99%

Quantum modeling of ultrafast photoinduced charge separation

Rozzi

Troiani

Tavernelli

2017

J. Phys.: Condens. Matter

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Phenomena involving electron transfer are ubiquitous in nature, photosynthesis and enzymes or protein activity being prominent examples. Their deep understanding thus represents a mandatory scientific goal. Moreover, controlling the separation of photogenerated charges is a crucial prerequisite in many applicative contexts, including quantum electronics, photo-electrochemical water splitting, photocatalytic dye degradation, and energy conversion. In particular, photoinduced charge separation is the pivotal step driving the storage of sun light into electrical or chemical energy. If properly mastered, these processes may also allow us to achieve a better command of information storage at the nanoscale, as required for the development of molecular electronics, optical switching, or quantum technologies, amongst others.In this Topical review we survey recent progress in the understanding of ultrafast charge separation from photoexcited states. We report the state-of-the-art of the observation and theoretical description of charge separation phenomena in the ultrafast regime mainly focusing on molecularand nano-sized solar energy conversion systems. In particular, we examine different proposed mechanisms driving ultrafast charge dynamics, with particular regard to the role of quantum coherence and electron-nuclear coupling, and link experimental observations to theoretical approaches based either on model Hamiltonians or on first principles simulations.

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“…porphyrins), which are covalently bound to the NM surfaces. [138][139][140] As per the NH definition, chemically bound coatings of this nature will lead to altered nano-EHS behaviour. For example, heterocyclic porphyrins not only provide stabilisation to NH dispersions but will also provide excellent electronic charge transfer properties [138] and antimicrobial capabilities.…”

Section: Organic Molecule-coated Nanohybrids (Omcnhs)mentioning

confidence: 99%

“…[138][139][140] As per the NH definition, chemically bound coatings of this nature will lead to altered nano-EHS behaviour. For example, heterocyclic porphyrins not only provide stabilisation to NH dispersions but will also provide excellent electronic charge transfer properties [138] and antimicrobial capabilities. [141] Moreover, conformational differences of organic molecules or polymers present on the NM surface are known to present unique fate, transformation and toxicity behaviour.…”

Section: Organic Molecule-coated Nanohybrids (Omcnhs)mentioning

confidence: 99%

A critical review of nanohybrids: synthesis, applications and environmental implications

et al. 2014

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Environmental context. Recent developments in nanotechnology have focussed towards innovation and usage of multifunctional and superior hybrid nanomaterials. Possible exposure of these novel nanohybrids can lead to unpredicted environmental fate, transport, transformation and toxicity scenarios. Environmentally relevant emerging properties and potential environmental implications of these newer materials need to be systematically studied to prevent harmful effects towards the aquatic environment and ecology.Abstract. Nanomaterial synthesis and modification for applications have progressed to a great extent in the last decades. Manipulation of the physicochemical properties of a material at the nanoscale has been extensively performed to produce materials for novel applications. Controlling the size, shape, surface functionality, etc. has been key to successful implementation of nanomaterials in multidimensional usage for electronics, optics, biomedicine, drug delivery and green fuel technology. Recently, a focus has been on the conjugation of two or more nanomaterials to achieve increased multifunctionality as well as creating opportunities for next generation materials with enhanced performance. With incremental production and potential usage of such nanohybrids come the concerns about their ecological and environmental effects, which will be dictated by their not-yet-understood physicochemical properties. While environmental implication studies concerning the single materials are yet to give an integrated mechanistic understanding and predictability of their environmental fate and transport, the importance of studying the novel nanohybrids with their multidimensional and complex behaviour in environmental and biological exposure systems are immense. This article critically reviews the literature of nanohybrids and identifies potential environmental uncertainties of these emerging 'horizon materials'.

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Photoinduced electron transfer processes in fullerene–organic chromophore systems

Cited by 115 publications

References 250 publications

Diblock Copolymer Micelles and Supported Films with Noncovalently Incorporated Chromophores: A Modular Platform for Efficient Energy Transfer

Diblock Copolymer Micelles and Supported Films with Noncovalently Incorporated Chromophores: A Modular Platform for Efficient Energy Transfer

Quantum modeling of ultrafast photoinduced charge separation

A critical review of nanohybrids: synthesis, applications and environmental implications

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