Hybrid Nanostructures for Enhanced Light-Harvesting: Plasmon Induced Increase in Fluorescence from Individual Photosynthetic Pigment–Protein Complexes

Beyer, Sebastian; Ullrich, Simon; Kudera, Stefan; Gardiner, Alastair T.; Cogdell, Richard J.; Köhler, Jürgen

doi:10.1021/nl202772h

Cited by 65 publications

(57 citation statements)

References 32 publications

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“…Enhancement of light absorption was observed for PSI attached to plasmonic nanoparticles (PNPs) [49]. The LHCs anchored on plasmonic gold or silver island substrates were able to generate 10-to 20-fold of fluorescence emission [50][51][52].…”

Section: Effect Of Plasmonic Nanoparticlesmentioning

confidence: 99%

TiO2: A Critical Interfacial Material for Incorporating Photosynthetic Protein Complexes and Plasmonic Nanoparticles into Biophotovoltaics

Yang¹,

Li²

2017

Application of Titanium Dioxide

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TiO 2 , a photosensitive semiconducting material, has been widely reported as a good photoanode material in dye-sensitized solar cells and new emerging perovskite cells. Its proper electronic band structure, surface chemistry and hydrophilic nature provide a reactive surface for interfacing with different organic and inorganic photon capturing materials in photovoltaics. Here, we review its enabling role in incorporating two special materials toward biophotovoltaics, including photosynthetic protein complexes extracted from plants and plasmonic nanoparticles (e.g., gold or silver nanoparticles), which interplay to enhance the absorption and utilization of sun light. We will first give a brief introduction to the TiO 2 photoanode, including preparation, optical and electrochemical properties, and then summarize our recent research and other related literature on incorporating photosynthetic light harvest complexes and plasmonic nanoparticles onto anatase TiO 2 photoanodes as a means to tap into the charge separation, electron and energy transfer, and photovoltaic enhancements in the bio-photovoltaics.

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Section: Effect Of Plasmonic Nanoparticlesmentioning

confidence: 99%

TiO2: A Critical Interfacial Material for Incorporating Photosynthetic Protein Complexes and Plasmonic Nanoparticles into Biophotovoltaics

Yang¹,

Li²

2017

Application of Titanium Dioxide

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“…[20][21][22][23][24][25] In particular, effects of plasmon excitations in silver nanostructured films and in spherical nanoparticles on the absorption and emission of several a Institute of Physics, Faculty of Physics, Astronomy and Informatics, light-harvesting and photosynthetic complexes have been studied. For geometries, where monodispersed metallic nanoparticles were coupled with light-harvesting complexes with precise control of their separation, a strong increase of absorption or emission has been observed.…”

Section: Introductionmentioning

confidence: 99%

Polarization control of metal-enhanced fluorescence in hybrid assemblies of photosynthetic complexes and gold nanorods

Bujak

Olejnik

Brotosudarmo

et al. 2014

Phys. Chem. Chem. Phys.

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a Fluorescence imaging of hybrid nanostructures composed of a bacterial light-harvesting complex LH2and Au nanorods with controlled coupling strength is employed to study the spectral dependence of the plasmon-induced fluorescence enhancement. Perfect matching of the plasmon resonances in the nanorods with the absorption bands of the LH2 complexes facilitates a direct comparison of the enhancement factors for longitudinal and transverse plasmon frequencies of the nanorods. We find that the fluorescence enhancement due to excitation of longitudinal resonance can be up to five-fold stronger than for the transverse one. We attribute this result, which is important for designing plasmonic functional systems, to a very different distribution of the enhancement of the electric field due to the excitation of the two characteristic plasmon modes in nanorods.

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“…The stock solution was diluted with pure buffer in three steps to a concentration of 10 -11 M, where in the last dilution step 2% polyvinyl alcohol (PVA) was added. Subsequently the material was spincoated on a fused quarz substrate forming a thin film with a thickness of about 100 nm38 in which the LH2 complexes were embedded. For the optical experiments the sample was mounted in a recipient that was flushed with helium gas which reduced the concentration of oxygen to less than 1 ppb and minimizes irreversible photobleaching of the complexes.…”

mentioning

confidence: 99%

Multi-Level, Multi Time-Scale Fluorescence Intermittency of Photosynthetic LH2 Complexes: A Precursor of Non-Photochemical Quenching?

et al. 2015

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The light harvesting complex LH2 is a chromoprotein that is an ideal system for studying protein dynamics via the spectral fluctuations of the emission of its intrinsic chromophores. We have immobilized these complexes in a polymer film and studied the fluctuations of the fluorescence intensity from individual complexes over 9 orders of magnitude in time. Combining time-tagged detection of single photons with a change-point analysis has allowed the unambigeous identification of the various intensity levels due to the huge statistical basis of the data set. We propose that the observed intensity level fluctuations reflect conformational changes of the protein backbone that might be a precursor of the mechanism from which nonphotochemical quenching of higher plants has evolved.

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Hybrid Nanostructures for Enhanced Light-Harvesting: Plasmon Induced Increase in Fluorescence from Individual Photosynthetic Pigment–Protein Complexes

Cited by 65 publications

References 32 publications

TiO2: A Critical Interfacial Material for Incorporating Photosynthetic Protein Complexes and Plasmonic Nanoparticles into Biophotovoltaics

TiO2: A Critical Interfacial Material for Incorporating Photosynthetic Protein Complexes and Plasmonic Nanoparticles into Biophotovoltaics

Polarization control of metal-enhanced fluorescence in hybrid assemblies of photosynthetic complexes and gold nanorods

Multi-Level, Multi Time-Scale Fluorescence Intermittency of Photosynthetic LH2 Complexes: A Precursor of Non-Photochemical Quenching?

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