Organic photovoltaics (OPVs) are a promising carbon-neutral energy conversion technology, with recent improvements pushing power conversion efficiencies over 10%. A major factor limiting OPV performance is inefficiency of charge transport in organic semiconducting materials (OSCs). Due to strong coupling with lattice degrees of freedom, the charges form polarons, localized quasi-particles compr...

Introduction: Charge-coupled devices (CCDs) have conventionally used overlapping (0.5–2.5 mm) polysilicon gates to achieve charge transfer between gates with a very high charge transfer efficiency (CTE) [1]. Since conventional CMOS processes do not allow poly-overlaps, it was not possible to achieve a ‘true’ CCD structure in this process until now, though efforts were made in this direction [2]...

The decision to use a commercial power MOSFET in a harsh radioactive environment[1], such as outer space, is subordinated to the capacity of the device to tolerate single event effects (SEE)[2] caused by single ionising particles. An incident ion may trigger charge generating mechanisms in the active volumes of the device that may give rise to a simple momentary malfunction or to a destructive ...

in the present study, we investigate dc conduction mechanism of electron beam evaporated   bromoaluminium phthalocyanine (bralpc) thin films using aluminum and gold electrodes. the current-voltage characteristics of sandwich type device are evaluated for the temperature range 298-413k under dark conditions. it is observed that the current passing through the device is increased by increasing te...

We investigate the mechanism of operation of hybrid organic/colloidal quantum dot light emitting devices QD-LEDs . Novel quantum dot QD deposition methods allow us to change the location of an emissive QD monolayer within a QD-LED multilayer structure. We find that the quantum efficiency of devices improves by 50% upon imbedding QD monolayers into the hole transporting layer 10 nm away from the...