Title of dissertation: THEORY OF GRAPHENE TRANSPORT PROPERTIES Qiuzi Li, Doctor of Philosophy, 2013 Dissertation directed by: Professor Sankar Das Sarma Department of Physics Graphene is of great fundamental interest and has potential applications in disruptive novel technologies. In order to study the novel phenomena in graphene, it is essential to understand its electron transport properties ...

background: available drugs are not able to eradicate intracellular viral dna in patients with hepatitis b virus (hbv) infections. hbsag vaccine could induce immunity and subsequently eradicate hepatitis b virus in proportions of these patients. our aim was to evaluate the efficacy of hbsag as a mode of therapy in inactive carriers. materials and methods: forty two consecutive patients of inact...

background and objectives: neisseria meningitidis is transmitted from person-to-person. thus, close contact with a healthy carrier can facilitate the spread of the bacteria and lead to life-threatening meningococcal disease. the aim of this study was to identify oropharyngeal carriers of n. meningitidis in volunteers preparing for military service before vaccination. materials and methods: in a...

background: it is estimated that about 370 million people are chronic carriers of hbv worldwide. apparently 3% of iranian populations are chronic carriers of this virus. we aimed to evaluate the viral dna in biological fluids of chronic hepatitis patients compared to a control group. methods: the current case-control study was designed to evaluate the viral dna in biological fluids of 70 chroni...

An innovative approach was performed to prepare novel pullulan/starch blended edible films by direct incorporation of multiple probiotic bacterial strains. Various starches different in origin were blended into the pullulan solutions with different ratios. The physical and mechanical properties of the films were investigated in the presence and absence of probiotic cells. An increase in the sta...

According to electronic structure theory, bilayer graphene is expected to have anomalous electronic properties when it has long-period moiré patterns produced by small misalignments between its individual layer honeycomb lattices. We have realized bilayer graphene moiré crystals with accurately controlled twist angles smaller than 1° and studied their properties using scanning probe microscopy ...

Carrier dynamics of filled-skutterudites, an important class of thermoelectric materials, is investigated using ultrafast optical spectroscopy. By tuning the wavelength of the probe laser, charge transfers at different electronic energy levels are interrogated. Analysis based on the KramersKronig relation explains the complex spectroscopy data, which is mainly due to band filling caused by phot...

We show that unintentional hydrogen doping of ZnO during the electrodeposition process can impact the material's carrier concentration as significantly as others have reported for intentional extrinsic doping. Mott-Schottky analyses on the natively n-type electrodeposits show a decrease in the carrier concentrations from 10(21) to 10(18) cm(-3) with increasing overpotential. A strong link exist...

Long lifetimes of hot carriers can lead to qualitatively new types of responses in materials. The magnitude and time scales for these responses reflect the mechanisms governing energy flows. We examine the microscopics of two processes which are key for energy transport, focusing on the unusual behavior arising due to graphene's unique combination of material properties. One is hot carrier gene...

Thermoelectric transport properties of n-type PbTe1 xIx with carrier concentrations ranging from 5.8 10–1.4 10 cm 3 are reinvestigated from room temperature to 800 K. The electronic transport properties, resistivity and Seebeck coefficient in this study are effectively consistent with prior reports, however the thermal conductivity has been found to be historically overestimated. The reassessme...