Nanoparticle synthesis, assembly and manipulation
We prepare semiconductor nanoparticles of different sizes and shapes using organometallic syntheses.
Optical characterization is carried out using absorption and photoluminescence spectroscopy.
We study the assembly patterns formed by nanocrystals on different substrates and we devise ways to integrate
nanocrystals into nanoscale devices.
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Fluorescence spectroscopy of individual nanoparticles
Under continuous illumination, semiconductor nanocrystals have been observed to emit light intermittently.
This light intermittency is often called "blinking" and exhibits particular statistics.
We study nanocrystal blinking and in particular the effects of particle geometry and its environment on fluorescence
properties. Recently, we studied the blinking properties of single CdSe core and core/shell nanorods.
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Nanofabrication (nanogaps and TEBAL)
Nanoscale electronic devices are fabricated and characterized using electron-beam lithography and transmission
electron microscopy. Recently, we demonstrated that transmission electron beams can be used to nanosculpt thin
metal films to make integrated devices with sub-10 nm features..
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Nanoelectronics
Low-noise charge transport in nanoscale structures and electronic devices (transistors, photovoltaics, memory, etc.)
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Force Microscopy
Atomic- and electric-force microscopy of mesoscopic and nanoscale structures.
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Equipment and shared facilities at Penn
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If you are interested in working with us as an undergraduate student, graduate student, or a postdoc please contact Prof. Marija Drndic at drndic@physics.upenn.edu.
2007, Marija Drndic