A dye-sensitized solar cell (DSSC) fabricated by using a novel silyl-anchor coumarin dye with alkyl-chain substitutes, a Br3-/Br- redox electrolyte solution containing water, and a Mg2+-doped anatase-TiO2 electrode with twofold surface modification by MgO and Al2O3 exhibited an open-circuit photovoltage over 1.4 V, demonstrating the possibility of DSSCs as practical photovoltaic devices.

Carbon nanotube membranes have been shown to rapidly transport liquids; but progressive hydrophilic modification--contrary to expectations--induces a drastic reduction of water flow. Enhanced electrostatic interaction and the disruption of the mechanically smooth graphitic walls is the determinant of this behavior. These results have critical implications in the design of nanofluidic devices.

Highly impressionable electron spin was found in endohedral azafullerene Y(2)@C(79)N at low temperature or upon exohedral chemical modification. These external stimulations can be employed to manipulate the spin-active Y(2)@C(79)N and can further be used in quantum processes for promising information-carrying spin systems and molecular devices.

Epitaxial multilayers, consisting of a PrBa2Cu307_ x buffer layer, ultrathin YBa2Cu307_ x and SrTiO 3, have been grown for application in electric field effect devices. Different analytical techniques indicate a sharp interface between the layers and good dielectric properties of the SrTiO3-1ayer. First measurements show clear modification of the superconductor's current-voltage characteristics...

In our work the phenomena determining the performance of semiconductor devices are examined. We use computer simulations based on semi-classical drift-diffusion model. Our aim is to numerically solve a system of three nonlinear elliptic differential equations. For computations, we use a coupled Newton method, with a modification taking advantage of a simple iteration.

New medical products, materials and surgical procedures keep improving current health-care practices. Many of these innovations involve polymeric devices that must meet certain clinical and cost requirements. Chief among these pressures is the need for biocompatibility between the physiological environment and the biomaterial surface. Plasma surface modification can improve biocompatibility and...

Stress urinary incontinence is a prevalent condition in women with a significant negative effect on quality of life. Intervention includes behavioral modification, intravaginal devices, pelvic floor muscle exercises, biofeedback, functional electrical stimulation, and surgical procedures. We will review a new in-office procedure for the treatment of SUI that may serve as a viable nonsurgical op...

Identifying the cause of an underperforming WLAN can be challenging due to the presence of a plethora of devices and networks operating in the ISM band. Such devices cause electromagnetic interference that can potentially undermine the throughput of residential and enterprise WiFi networks. In this paper, we propose an interference estimation and monitoring technique for 802.11 Access Points th...