Zobrazeno 1 - 10
of 38
pro vyhledávání: '"S. E. Collins"'
Autor:
Arash Ahmadivand, Christy F. Landes, Jianfang Wang, Sean S. E. Collins, Alexander Al-Zubeidi, Behnaz Ostovar, Miranda J. Gallagher, Yi-Yu Cai, Tsz Him Chow, Stephan Link, Ujjal Bhattacharjee, Peter Nordlander, Runmin Zhang
Publikováno v:
ACS Energy Letters. 4:2458-2465
Resolving the dynamics of photoexcited d-holes in metallic nanostructures is one step in the rational design of plasmonic photocatalysis. Here, we track the creation and relaxation of charge carrie...
Publikováno v:
The Journal of Physical Chemistry C. 123:19871-19878
We have assembled a three-dimensional (3D) plasmon ruler using an atomic force microscope (AFM) tip to manipulate single gold nanocrystals on top of electron beam lithography fabricated base layers...
Autor:
Benjamin S. Hoener, Stephan Link, Anneli Joplin, Sean S. E. Collins, Seyyed Ali Hosseini Jebeli, Wenxiao Wang, Alexander Al-Zubeidi, Silke R. Kirchner, Christy F. Landes, Wei-Shun Chang
Publikováno v:
Nano Letters. 19:1301-1306
Strong light absorbing properties, and the ability to drive electrochemical reactions on their surface has sparked, allow plasmonic metal nanoparticles to serve as photocatalysts. After plasmon excitation, hot charge carriers are generated in the met
Autor:
Sean S. E. Collins, Christy F. Landes, Yawei Liu, Benjamin Foerster, Tianquan Lian, Minhan Lou, Jia Song, Stephan Link, Lawrence J. Tauzin, Charlotte Flatebo, Luca Bursi, Peter Nordlander, Yi-Yu Cai, Rashad Baiyasi, Emily K. Searles
Publikováno v:
ACS nano. 15(6)
Plasmonic metal nanoparticles exhibit large dipole moments upon photoexcitation and have the potential to induce electronic transitions in nearby materials, but fast internal relaxation has to date limited the spatial range and efficiency of plasmoni
Autor:
Martin Aeschlimann, Michael Hartelt, Carsten Sönnichsen, Benjamin Foerster, Sean S. E. Collins, Stephan Link
Publikováno v:
Nano letters. 20(5)
We compare the decay of plasmons and "conventional" hot electrons within the same series of gold/metal oxide interfaces. We found an accelerated decay of hot electrons at gold-metal oxide interfaces with decreasing band gap of the oxide material. The
Autor:
Sean S. E. Collins, Stephan Link, Wei-Shun Chang, Silke R. Kirchner, Thomas S. Heiderscheit, Christy F. Landes, Benjamin S. Hoener
Publikováno v:
Chem. 4:1560-1585
Summary Plasmonic nanoparticles offer promise in photoelectrochemistry by enhancing the rate and selectivity of reactions and in sensing by responding optically to local reactions. Optical electrochemical measurements at the single-particle level are
Autor:
Kyle W. Smith, Christy F. Landes, Calum Kinnear, Sean S. E. Collins, Heyou Zhang, Wenxiao Wang, Silke R. Kirchner, Yi-Yu Cai, Paul Mulvaney, Stephan Link, Benjamin S. Hoener, Wei-Shun Chang
Publikováno v:
The Journal of Physical Chemistry C. 122:6865-6875
Plasmon-mediated processes provide unique opportunities for selective photocatalysis, photovoltaics, and electrochemistry. Determining the influence of particle heterogeneity is an unsolved problem because often such processes introduce irreversible
Nanoelectrode-emitter spectral overlap amplifies surface enhanced electrogenerated chemiluminescence
Autor:
Charlotte Flatebo, Thomas S. Heiderscheit, Seyyed Ali Hosseini Jebeli, Leonardo Scarabelli, Alexander Al-Zubeidi, Christy F. Landes, Miranda J. Gallagher, Rashad Baiyasi, Stephan Link, Sean S. E. Collins, Wei-Shun Chang
Publikováno v:
The Journal of chemical physics. 151(14)
Electrogenerated chemiluminescence (ECL) is a promising technique for low concentration molecular detection. To improve the detection limit, plasmonic nanoparticles have been proposed as signal boosting antennas to amplify ECL. Previous ensemble stud
Publikováno v:
ECS Meeting Abstracts. :1925-1925
Plasmonic nanomaterials have absorption cross-sections exceeding other classes of materials but dephase quickly into their dielectric environment. In this work, plasmonic-polymeric nanoantenna-reactor systems are hybridized to increase the electron-h
Publikováno v:
The Journal of Physical Chemistry Letters. 5:4331-4335
We report the electrodeposition of metallic silver onto gold nanostars adsorbed to ITO electrodes. The electrochemical process was studied at the single particle level by correlated in situ dark field spectroscopy and scanning electron microscopy (SE