Exactly soluble model of resonant energy transfer between molecules

King, Christopher; Barbiellini, B.; Moser, David K.; Renugopalakrishnan, V.

doi:10.1103/physrevb.85.125106

Cited by 23 publications

(34 citation statements)

References 32 publications

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“…Efficient transfer of energy through the network can be achieved by designing a hybrid layer composed of plasmonic elements coupled with SQDs 20 or semiconducting interfaces 21 . The underlying mechanism involves a near-field resonance of electric dipoles, also known as Forster resonance energy transfer (FRET) 22 , which can be viewed as a quantum version of the classical resonance phenomenon 23 . Exciton migration in a hybrid SQD-MNP network can be incoherent (diffusive) 9 or coherent (wavelike) and could be studied by using positronium atoms simulators in metal-organic framework.…”

Section: Introductionmentioning

confidence: 99%

Self-consistent scheme for optical response of large hybrid networks of semiconductor quantum dots and plasmonic metal nanoparticles

et al. 2016

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We discuss a self-consistent scheme for treating the optical response of large, hybrid networks of semiconducting quantum dots (SQDs) and plasmonic metallic nanoparticles (MNPs). Our method is efficient and scalable and becomes exact in the limiting case of weakly interacting SQDs. The self-consistent equations obtained for the steady state are analogous to the Heisenberg equations of motion for the density matrix of a SQD placed in an effective electric field computed within the discrete dipole approximation (DDA). Illustrative applications of the theory to square and honeycomb SQD, MNP and hybrid SDQ/MNP lattices as well as SQD-MNP dimers are presented. Our results demonstrate that hybrid SQD-MNP lattices can provide flexible platforms for light manipulation with tunable resonant characteristics.

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Section: Introductionmentioning

confidence: 99%

Self-consistent scheme for optical response of large hybrid networks of semiconductor quantum dots and plasmonic metal nanoparticles

et al. 2016

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“…The transfer of light energy absorbed by QDs to bR occurs first via an efficient Forster resonance energy transfer (FRET) 19 and further, from bR-QD to Au, via a nonradiative “Auger-mediated de-excitation” (AMD) in the Au layer. 20,21 …”

Section: Introductionmentioning

confidence: 99%

Engineering a Robust Photovoltaic Device with Quantum Dots and Bacteriorhodopsin

et al. 2014

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We present a route toward a radical improvement in solar cell efficiency using resonant energy transfer and sensitization of semiconductor metal oxides with a light-harvesting quantum dot (QD)/bacteriorhodopsin (bR) layer designed by protein engineering. The specific aims of our approach are (1) controlled engineering of highly ordered bR/QD complexes; (2) replacement of the liquid electrolyte by a thin layer of gold; (3) highly oriented deposition of bR/QD complexes on a gold layer; and (4) use of the Forster resonance energy transfer coupling between bR and QDs to achieve an efficient absorbing layer for dye-sensitized solar cells. This proposed approach is based on the unique optical characteristics of QDs, on the photovoltaic properties of bR, and on state-of-the-art nanobioengineering technologies. It permits spatial and optical coupling together with control of hybrid material components on the bionanoscale. This method paves the way to the development of the solid-state photovoltaic device with the efficiency increased to practical levels.

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“…8,9 Conventional solar cells use bulk inorganic materials like semiconductors, assembled to form a p-n junction. The efficiency is quite good 10 but costs remain high, preventing their large-scale diffusion.…”

Section: Introductionmentioning

confidence: 99%

“…These opsin-integrated devices which at present are only proof of concept, promise many attractive features like the natural nanosized dimension, but also a fast response, high efficiency, and potentially low cost. 8,9 Among the recent proposals, the most innovative is a device consisting of a light absorbing surface composed of bR mutants on a thin layer of gold to produce ballistic electrons for photocurrent. 8,9 The knowledge of sensing proteins like opsins is still quite incomplete, both concerning those pertaining to the proton pump family (type-1 opsins), and those belonging to the GPCR family (type-2 opsins), like mammal proteins.…”

Section: Introductionmentioning

confidence: 99%

“…8,9 Among the recent proposals, the most innovative is a device consisting of a light absorbing surface composed of bR mutants on a thin layer of gold to produce ballistic electrons for photocurrent. 8,9 The knowledge of sensing proteins like opsins is still quite incomplete, both concerning those pertaining to the proton pump family (type-1 opsins), and those belonging to the GPCR family (type-2 opsins), like mammal proteins. The operating principles are different for these proteins: type-1 opsins pump protons outside the cellular membrane, while type-2 opsins activate an auxiliary protein called G-protein.…”

Section: Introductionmentioning

confidence: 99%

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Opsin vs opsin: New materials for biotechnological applications

Alfinito

Reggiani

2014

Journal of Applied Physics

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The need of new diagnostic methods satisfying, as an early detection, a low invasive procedure and a cost-efficient value, is orienting the technological research toward the use of bio-integrated devices, in particular, bio-sensors. The set of know-why necessary to achieve this goal is wide, from biochemistry to electronics and is summarized in an emerging branch of electronics, called proteotronics. Proteotronics is here applied to state a comparative analysis of the electrical responses coming from type-1 and type-2 opsins. In particular, the procedure is used as an early investigation of a recently discovered family of opsins, the proteorhodopsins activated by blue light, BPRs. The results reveal some interesting and unexpected similarities between proteins of the two families, suggesting the global electrical response are not strictly linked to the class identity. V C 2014 AIP Publishing LLC. [http://dx.

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Exactly soluble model of resonant energy transfer between molecules

Cited by 23 publications

References 32 publications

Self-consistent scheme for optical response of large hybrid networks of semiconductor quantum dots and plasmonic metal nanoparticles

Self-consistent scheme for optical response of large hybrid networks of semiconductor quantum dots and plasmonic metal nanoparticles

Engineering a Robust Photovoltaic Device with Quantum Dots and Bacteriorhodopsin

Opsin vs opsin: New materials for biotechnological applications

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