Garry Rumbles

Efficient photoinduced charge injection from chemical bath deposited CdS into mesoporous TiO2 probed with time-resolved microwave conductivity (2008)

Piris, Jorge, Ferguson, Andrew J., Blackburn, Jeffrey L., Norman, Andrew G., Rumbles, Garry, Selmarten, Don C., ...

We use the contactless time-resolved microwave conductivity (TRMC) technique to investigate the photoconductance of CdS-coated mesoporous TiO2 and ZrO2. The CdS domains were grown directly on the...

Protonation effects on the branching ratio in photoexcited single-walled carbon nanotube dispersions (2008)

Blackburn, Jeffrey L., McDonald, Timothy J., Metzger, Wyatt K., Engtrakul, Chaiwat, Rumbles, Garry, Heben, Michael J.

The ensemble PL quantum yield for raw single-walled carbon nanotubes (SWNTs) dispersed in sodium cholate (SC) is similar to 5 times greater than that for the same raw SWNTs dispersed in sodium...

Chiral-selective protection of single-walled carbon nanotube photoluminescence by surfactant selection (2007)

McDonald, Timothy J., Blackburn, Jeffrey L., Metzger, Wyatt K., Rumbles, Garry, Heben, Michael J.

We study the effects of adding H2O2 to acid-purified and unpurified single-walled carbon nanotubes (SWNTs) in aqueous suspensions using photoluminescence (PL) and optical absorption spectroscopies....

Fluorescence lifetime standards for time and frequency domain fluorescence spectroscopy (2007)

Boens, Noel, Qin, Wenwu, Basaric, Nikola, Hofkens, Johan, AMELOOT, Marcel, Pouget, Jacques, ...

A series of fluorophores with single-exponential fluorescence decays in liquid solution at 20 degrees C were measured independently by nine laboratories using single-photon timing and multifrequency...

Fluorescence lifetime standards for time and frequency domain fluorescence spectroscopy (2007)

Boens, Noel, Qin, Wenwu, Basaric, Nikola, Hofkens, Johan, AMELOOT, Marcel, Pouget, Jacques, ...

A series of fluorophores with single-exponential fluorescence decays in liquid solution at 20 degrees C were measured independently by nine laboratories using single-photon timing and multifrequency...

Kinetics of PL quenching during single-walled carbon nanotube rebundling and diameter-dependent surfactant interactions (2006)

McDonald, Timothy J., Engtrakul, Chaiwat, Jones, Marcus, Rumbles, Garry, Heben, Michael J.

The kinetics of single-walled carbon nanotube rebundling have been investigated by photoluminescence (PL) spectroscopy. The rate of loss of PL intensity was measured for 12 different nanotubes in...

dendrimers (2005)

William J. Mitchell, Nikos Kopidakis, Garry Rumbles, David S. Ginley, Sean E. Shaheen

synthesis and properties of solution processable phenyl cored thiophene