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Guda Ramakrishna
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Ultrabright luminescence from gold nanoclusters: rigidifying the Au (I)–thiolate shell
K Pyo, VD Thanthirige, K Kwak, P Pandurangan, G Ramakrishna, D Lee
Journal of the American Chemical Society 137 (25), 8244-8250, 2015
4812015
Quantum-sized gold clusters as efficient two-photon absorbers
G Ramakrishna, O Varnavski, J Kim, D Lee, T Goodson
Journal of the American Chemical Society 130 (15), 5032-5033, 2008
3692008
Investigation of two-photon absorption properties in branched alkene and alkyne chromophores
A Bhaskar, G Ramakrishna, Z Lu, R Twieg, JM Hales, DJ Hagan, ...
Journal of the American Chemical Society 128 (36), 11840-11849, 2006
2812006
Critical size for the observation of quantum confinement in optically excited gold clusters
O Varnavski, G Ramakrishna, J Kim, D Lee, T Goodson
Journal of the American Chemical Society 132 (1), 16-17, 2010
2472010
Unique Ultrafast Visible Luminescence in Monolayer-Protected Au25 Clusters
MS Devadas, J Kim, E Sinn, D Lee, T Goodson III, G Ramakrishna
The Journal of Physical Chemistry C 114 (51), 22417-22423, 2010
2292010
Single- and Multiphoton Turn-On Fluorescent Fe3+ Sensors Based on Bis(rhodamine)
AJ Weerasinghe, C Schmiesing, S Varaganti, G Ramakrishna, E Sinn
The Journal of Physical Chemistry B 114 (29), 9413-9419, 2010
1972010
Emission from the charge transfer state of xanthene dye-sensitized TiO2 nanoparticles: A new approach to determining back electron transfer rate and verifying the marcus …
G Ramakrishna, HN Ghosh
The Journal of Physical Chemistry B 105 (29), 7000-7008, 2001
1812001
Giant thienylene-acetylene-ethylene macrocycles with large two-photon absorption cross section and semishape-persistence
M Williams-Harry, A Bhaskar, G Ramakrishna, T Goodson, M Imamura, ...
Journal of the American Chemical Society 130 (11), 3252-3253, 2008
1742008
Temperature-Dependent Optical Absorption Properties of Monolayer-Protected Au25 and Au38 Clusters
MS Devadas, S Bairu, H Qian, E Sinn, R Jin, G Ramakrishna
The Journal of Physical Chemistry Letters 2 (21), 2752-2758, 2011
1672011
Building symmetric two-dimensional two-photon materials
A Bhaskar, R Guda, MM Haley, Goodson
Journal of the American Chemical Society 128 (43), 13972-13973, 2006
1622006
Effect of particle size on the reactivity of quantum size ZnO nanoparticles and charge-transfer dynamics with adsorbed catechols
G Ramakrishna, HN Ghosh
Langmuir 19 (7), 3006-3012, 2003
1612003
Optical and photochemical properties of sodium dodecylbenzenesulfonate (DBS)-capped TiO2 nanoparticles dispersed in nonaqueous solvents
G Ramakrishna, HN Ghosh
Langmuir 19 (3), 505-508, 2003
1552003
Information on quantum states pervades the visible spectrum of the ubiquitous Au144(SR)60 gold nanocluster
HC Weissker, HB Escobar, VD Thanthirige, K Kwak, D Lee, ...
Nature communications 5 (1), 3785, 2014
152*2014
Directional Electron Transfer in Chromophore-Labeled Quantum-Sized Au25 Clusters: Au25 as an Electron Donor
MS Devadas, K Kwak, JW Park, JH Choi, CH Jun, E Sinn, G Ramakrishna, ...
The Journal of Physical Chemistry Letters 1 (9), 1497-1503, 2010
1312010
Molecules with perfect cubic symmetry as nanobuilding blocks for 3-D assemblies. Elaboration of octavinylsilsesquioxane. Unusual luminescence shifts may indicate extended …
S Sulaiman, A Bhaskar, J Zhang, R Guda, T Goodson Iii, RM Laine
Chemistry of Materials 20 (17), 5563-5573, 2008
1292008
Excited-state deactivation of branched two-photon absorbing chromophores: a femtosecond transient absorption investigation
G Ramakrishna, T Goodson
The Journal of Physical Chemistry A 111 (6), 993-1000, 2007
1272007
Strongly coupled ruthenium− polypyridyl complexes for efficient electron injection in dye-sensitized semiconductor nanoparticles
G Ramakrishna, DA Jose, DK Kumar, A Das, DK Palit, HN Ghosh
The Journal of Physical Chemistry B 109 (32), 15445-15453, 2005
1272005
Dynamics of interfacial electron transfer from photoexcited quinizarin (Qz) into the conduction band of TiO2 and surface states of ZrO2 nanoparticles
G Ramakrishna, AK Singh, DK Palit, HN Ghosh
The Journal of Physical Chemistry B 108 (15), 4775-4783, 2004
1152004
Efficient electron injection from twisted intramolecular charge transfer (TICT) state of 7-diethyl amino coumarin 3-carboxylic acid (D-1421) dye to TiO2 nanoparticle
G Ramakrishna, HN Ghosh
The Journal of Physical Chemistry A 106 (11), 2545-2553, 2002
1102002
Ultrafast intermolecular hydrogen bond dynamics in the excited state of fluorenone
V Samant, AK Singh, G Ramakrishna, HN Ghosh, TK Ghanty, DK Palit
The Journal of Physical Chemistry A 109 (39), 8693-8704, 2005
1082005
Il sistema al momento non può eseguire l'operazione. Riprova più tardi.
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