We report on the device physics of nanostructured amorphous-silicon a-Si:H /polymer hybrid solar cells. Using two different polymers, poly 3-hexylthiophene P3HT and poly 2-methoxy-52 -ethyl-hexyloxy -1,4-phenylenevinylene MEH-PPV , we study the exciton diffusion, charge transfer, and charge-carrier transport in bilayer and nanostructured a-Si:H/polymer systems. We find that strong energy transf...

in the present study we search potential of pt-decorated graphene (ptg) as a new nanostructure adsorbent for nitrous oxide (n2o) using density functional theory (dft). after fully relaxation of different possible orientations of n2o-ptg complex, we distinguished two optimized configurations for this system; 1- terminal n-side of gas is oriented towards pt so that the molecule axis is perpendicu...

The optimization of interfacial charge transfer is crucial to the design of dye-sensitized solar cells. In this paper we address the dynamics of the charge separation and recombination in liquid-electrolyte and solid-state cells employing a series of amphiphilic ruthenium dyes with varying hydrocarbon chain lengths, acting as an insulating barrier for electron-hole recombination. Dynamics of el...

Graphene nanomesh (GNM)-based optoelectronics integrated with quantum dots (QDs) are investigated in this article. The charge transfer mechanism in the QDs/GNM interface is probed in four terminal gated FET-type photodetectors. The insulating ligand is used to make the GNM/ligand/QDs vertically behave like a metal/insulate/semiconductor (MIS) structure to facilitate the charge tunnelling. With ...

The charge stored on a capacitor is not quantized: it consists of polarization charges generated by displacing the electron gas with respect to the positive lattice ions and can take arbitrary magnitudes. The charge transfer across a tunnel junction, however, is quantized in units of the electron charge (singleelectron tunneling), and may be suppressed due to the Coulomb interaction (Coulomb bl...

Abstract A non-destructive surface charge detection is crucial for charged water research and exploitation of in different applications. The widely used existing methods such as Kelvin force spectroscopy, Mass impedance Electrophoretic light scattering etc which are costly not portable. This work presents the design development a compact, portable, low cost incoherent IR based modality. It on T...

Abstract Controlled molecular transport and separation is of significant importance in various applications. In this work, we presented a novel concept nanofluidic charge-coupled device (CCD) for controlled DNA separation. By leveraging the unique field-effect coupling systems, CCD aims to store charged biomolecules such as DNAs discrete regions nanochannels transfer separate these charge packe...