Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Viraj Dhanushka Thanthirige"'
Autor:
Viraj Dhanushka Thanthirige, Daniel M. Chevrier, Erin R. Johnson, Mark MacDonald, Jianping Xie, R. Guda, P. Cho, S. Driscoll, Qiaofeng Yao, Amares Chatt, Nanfeng Zheng, Zhentao Luo, Peng Zhang
Publikováno v:
Chemical Science. 9:2782-2790
Highly luminescent gold clusters simultaneously synthesized and stabilized by protein molecules represent a remarkable category of nanoscale materials with promising applications in bionanotechnology as sensors. Nevertheless, the atomic structure and
Publikováno v:
The Journal of Physical Chemistry Letters. 8:4898-4905
The energy gap law relates the nonradiative decay rate to the energy gap separating the ground and excited states. Here we report that the energy gap law can be applied to exciton dynamics in gold cluster molecules. Size-dependent electrochemical and
Publikováno v:
The Journal of Physical Chemistry C. 121:3530-3539
Temperature-dependent and time-resolved absorption measurements were carried out to understand the influence of solvent hydrogen bonding on the optical properties of bi-icosahedral [Au25(PPh3)10(C6S)5Cl2]2+ (bi-Au25) clusters. Theoretical calculation
Autor:
Dongil Lee, Woojun Choi, Viraj Dhanushka Thanthirige, Minseok Kim, Kyuju Kwak, Guda Ramakrishna
Publikováno v:
The Journal of Physical Chemistry C. 120:23180-23188
Temperature-dependent and ultrafast transient absorption measurements were carried out to probe the optical properties and exciton relaxation dynamics in metal-doped (Pt and Hg) Au25 clusters. Optical absorption and electrochemistry results have show
Publikováno v:
Nanoscale. 8:20008-20016
We report design strategies for the preparation of highly luminescent Au22(SG)18 clusters, where SG is glutathione, by the functionalization of the cluster shell. In these strategies, the cluster shell was covalently modified with small aromatic mole
Autor:
Alessandro, Fortunelli, Luca, Sementa, Viraj Dhanushka, Thanthirige, Tanya C, Jones, Mauro, Stener, Kevin J, Gagnon, Amala, Dass, Guda, Ramakrishna
Publikováno v:
The journal of physical chemistry letters. 8(2)
We introduce a class of gold nanomolecules exhibiting anisotropy as a major feature by reporting steady-state and time-resolved photoluminescence and anisotropy measurements and in-depth theoretical analysis of energetics and optical response of a re
Autor:
Luca Sementa, Alessandro Fortunelli, Amala Dass, Kevin J. Gagnon, Viraj Dhanushka Thanthirige, Mauro Stener, Guda Ramakrishna, Tanya C. Jones
Publikováno v:
Journal of physical chemistry. C 121 (2017): 10865–10869. doi:10.1021/acs.jpcc.6b12075
info:cnr-pdr/source/autori:Jones, Tanya C.; Sementa, Luca; Stener, Mauro; Gagnon, Kevin J.; Thanthirige, Viraj Dhanushka; Ramakrishna, Guda; Fortunelli, Alessandro; Dass, Amala/titolo:Au21S(SAdm)(15): Crystal Structure, Mass Spectrometry, Optical Spectroscopy, and First-Principles Theoretical Analysis/doi:10.1021%2Facs.jpcc.6b12075/rivista:Journal of physical chemistry. C/anno:2017/pagina_da:10865/pagina_a:10869/intervallo_pagine:10865–10869/volume:121
info:cnr-pdr/source/autori:Jones, Tanya C.; Sementa, Luca; Stener, Mauro; Gagnon, Kevin J.; Thanthirige, Viraj Dhanushka; Ramakrishna, Guda; Fortunelli, Alessandro; Dass, Amala/titolo:Au21S(SAdm)(15): Crystal Structure, Mass Spectrometry, Optical Spectroscopy, and First-Principles Theoretical Analysis/doi:10.1021%2Facs.jpcc.6b12075/rivista:Journal of physical chemistry. C/anno:2017/pagina_da:10865/pagina_a:10869/intervallo_pagine:10865–10869/volume:121
Here we report X-ray crystal structure, spectroscopic and theoretical characterization of Au21S(SAdm)(18) (SAdm = adamantanethiol). Single-crystal X-ray diffraction shows that the Au21S(SAdm)(15) nanomolecule exhibits a Au-12 cuboctahedral core missi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0566c056b98443e2ddbddb027e08ff09
http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b12075
http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b12075
Autor:
Amala Dass, Luca Sementa, Tanya C. Jones, Viraj Dhanushka Thanthirige, Kevin J. Gagnon, Mauro Stener, Guda Ramakrishna, Alessandro Fortunelli
Publikováno v:
The journal of physical chemistry letters 8 (2017): 457–462. doi:10.1021/acs.jpclett.6b02810
info:cnr-pdr/source/autori:Fortunelli, Alessandro; Sementa, Luca; Thanthirige, Viraj Dhanushka; Jones, Tanya C.; Stener, Mauro; Gagnon, Kevin J.; Dass, Amala; Ramakrishna, Guda/titolo:Au21S(SAdm)(15): An Anisotropic Gold Nanomolecule. Optical and Photoluminescence Spectroscopy and First-Principles Theoretical Analysis/doi:10.1021%2Facs.jpclett.6b02810/rivista:The journal of physical chemistry letters/anno:2017/pagina_da:457/pagina_a:462/intervallo_pagine:457–462/volume:8
info:cnr-pdr/source/autori:Fortunelli, Alessandro; Sementa, Luca; Thanthirige, Viraj Dhanushka; Jones, Tanya C.; Stener, Mauro; Gagnon, Kevin J.; Dass, Amala; Ramakrishna, Guda/titolo:Au21S(SAdm)(15): An Anisotropic Gold Nanomolecule. Optical and Photoluminescence Spectroscopy and First-Principles Theoretical Analysis/doi:10.1021%2Facs.jpclett.6b02810/rivista:The journal of physical chemistry letters/anno:2017/pagina_da:457/pagina_a:462/intervallo_pagine:457–462/volume:8
We introduce a class of gold nanomolecules exhibiting anisotropy as a major feature by reporting steady-state and time-resolved photoluminescence and anisotropy measurements and in-depth theoretical analysis of energetics and optical response of a re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5b5c7f74882331336e6d9a95fc98a69
http://hdl.handle.net/11368/2901653
http://hdl.handle.net/11368/2901653
Autor:
Kyunglim, Pyo, Viraj Dhanushka, Thanthirige, Sook Young, Yoon, Guda, Ramakrishna, Dongil, Lee
Publikováno v:
Nanoscale. 8(48)
We report design strategies for the preparation of highly luminescent Au
Temperature-Dependent Absorption and Ultrafast Luminescence Dynamics of Bi-Icosahedral Au25 Clusters
Autor:
Viraj Dhanushka Thanthirige, Semere Ghebru Bairu, Mary Sajini Devadas, Ekkehard Sinn, Guda Ramakrishna
Publikováno v:
The Journal of Physical Chemistry C. 117:23155-23161
Temperature-dependent absorption and ultrafast luminescence dynamics of [Au25(PPh3)10(SC6)5Cl2 ]2+ (Au25-rod) was studied and compared with [Au25(SC6)18]− (Au25-sphere) and Au38(SC2Ph)24 (Au38-rod) to understand the influence of the crystal structu