The rectification of electro-osmotic flows is important in micro- and nano-fluidics applications such as micropumps energy conversion devices. Here, we propose a simple diode which colloidal particles are contained between two parallel membranes with different pore densities. While the flow forward direction just pushes toward high-pore-density membrane, backward blocked by near low-pore-densit...

Current solar cell technology is based in the photovoltaic effect occurring in semiconductor materials. It is well-known that the conversion efficiency of these types of solar cells is theoretically limited as first noted by Shockley and Queisser (S&Q): a crystalline silicon device is limited to a conversion efficiency of 33.7 %. The theoretical limit of an infinite multi-junction cell is 86 %....

Parallel frequency readout of an array of cantilevers is demonstrated using optical beam deflection with a single laser-diode pair. Multi-frequency addressing makes the individual nanomechanical response of each cantilever distinguishable within the received signal. Addressing is accomplished by exciting the array with the sum of all cantilever resonant frequencies. This technique requires cons...

We present results of a discontinuous Galerkin scheme applied to deterministic computations of the transients for the Boltzmann-Poisson system describing electron transport in semiconductor devices. The collisional term models optical-phonon interactions which become dominant under strong energetic conditions corresponding to nano-scale active regions under applied bias. The proposed numerical ...

ticle as: S.Y. Lee tions, Nano Energ Abstract A flexible GaN light-emitting diode (LED) has been fabricated on a liquid crystal polymer (LCP) substrate for biomedical applications. The bending radius and fatigue tests demonstrated the mechanically and optically stable characteristics of the GaN LEDs on the flexible substrates. A white light-emitting phosphor-coated GaN LED showed its potential ...

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We grew an InGaN/GaN-based light-emitting diode (LED) wafer by metal–organic chemical vapor deposition (MOCVD), fabricated devices by optical lithography, and successfully deposited ellipsoidal Ag nano-particles by way of e-beam lithography on top. The diodes exhibited good device performance, in which we expected an enhancement of the radiated intensity by the simulations and emission measurem...

The aim of the laboratory study was to evaluate the degree of conversion (DC) and surface hardness of two nanofilled resin composite restorative materials compared to three other tooth-colored restorative materials. A light-emitting diode curing unit was used to photo-activate a hybrid composite (FiltekTM Z250), two nanofilled composites (Tetric® EvoCeram, FiltekTM Supreme XT), a nano-ionomer (...

This research has succeeded in designing air pressure and altitude measuring instruments based on arduino nano using BME280 sensor. The design of this tool uses the sensor as an input for parameter values ??of altitude. measurement results are displayed organic light emitting diode (OLED), which been processed by Arduino Nano. Sending HC-05 module. Calibrate parameters at Center Meteorology, Cl...