DNA & PROTEIN ANALYSIS GRAPHENE NANOPARTICLE SYNTHESIS FLUORESCENCE NANOFABRICATION NANOELECTRONICS FORCE MICROSCOPY EQUIPMENT
We study mesoscopic and nanoscale structures with atomic- and electric-force microscopy.
In our lab, we have a Veeco Enviroscope, which allows to carry out measurements in vacuum or in inert
atmosphere (argon, nitrogen), as well as at temperatures between room temperature and 500K.
We are currently installing a cooling setup to extend this temperature range.
Correlation of nanoscale patterns and local charge transport in PbSe nanocrystal arrays
Two-dimensional PbSe nanocrystal arrays on silicon nitride membranes were investigated using
electrostatic force microscopy (EFM) and transmission electron microscopy (TEM). Changes in lattice and transport
properties upon annealing in a vacuum were revealed. Local charge transport behavior was directly imaged by EFM
and correlated to nanopatterns observed with TEM. Charge transport through nanochannels in complex two-dimensional
nanocrystal networks was identified. Our results demonstrate the importance of measurements of local transport
details complementary to the conventional current-voltage (I-V) measurements.
For more details on correlated measurements of PbSe nanocrystal arrays with AFM, EFM and TEM:
Zonghai Hu, Michael D. Fischbein, and Marija Drndic
"Local charge transport in two-dimensional PbSe nanocrystal arrays
studied by electrostatic force microscopy"
Nano Letters 5 (7), 1463-1468, 2005.
2008, Marija Drndic