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...

Reducing hot-carrier relaxation rates is of great significance in overcoming energy loss that fundamentally limits the efficiency of solar energy utilization. Semiconductor quantum dots are expected to have much slower carrier cooling because the spacing between their discrete electronic levels is much larger than phonon energy. However, the slower carrier cooling is difficult to observe due to...

We present the first attempt of charge carrier transport modeling in III-nitride multipleQW light-emitting diode structures which takes into consideration ballistic overshoot of the device active region. For the purpose of this study, the drift-diffusion based Transport module of our software package has been complemented by a simple model of ballistic carrier transport which proved to be essen...

The split-C(V) technique has served during three decades for independent extraction of the inversion and accumulation charge in MOSFETs from the direct measurement of the gate-to-channel capacitance [1]. The total charge, Q, obtained from the integration of the gateto-channel capacitance curves, can be used for the evaluation of the carrier mobility using the standard MOSFET equations (μ α ID/Q...

This compound is a liquid crystal polymer composed of palladium and lipoic acid. It has been reported to show DNA electronic reducing activity by cyclic voltammetry (1). A charge transfer from membrane phospholipid to DNA is the presumptive mechanism whereby certain tumors, protozoa, and yeasts, are inhibited by this complex. The subcellular site of destruction has been shown to be the membrane...

Charge separation and extraction dynamics were investigated in high-performance bulk heterojunction solar cells made from the polymer PTB7 and the soluble fullerene PC71BM on a broad time scale from subpicosecond to microseconds using ultrafast optical probing of carrier drift and the integral-mode photocurrent measurements. We show that the short circuit current is determined by the separation...

Two novel n-type disk-shaped molecules containing a triphenylene core and three fused naphthaleneimide imidazole or peryleneimide imidazole "arms" are synthesized and characterized. The n-type charge carrier mobilities of these molecules are evaluated by both field effect transistors and space-charge limited-current measurements, which exhibit drastically different mobility anisotropy. A strong...

UNLABELLED We investigate the scalability of the temperature- and electric field-dependence of the conductivity of disordered organic semiconductors to 'universal' curves by two different but commonly employed methods; by so-called universal scaling and by using the effective temperature concept. Experimentally both scaling methods were found to be equally applicable to the out-of-plane charge ...

The two-dimensional electron gas (2DEG) formed at the n-type (LaO)(+1)/(TiO2)(0) interface in the polar/nonpolar LaAlO3/SrTiO3 (LAO/STO) heterostructure (HS) has emerged as a prominent research area because of its great potential for nanoelectronic applications. Due to its practical implementation in devices, desired physical properties such as high charge carrier density and mobility are vital...

Amorphous silicon is a good semiconductive material for many applications. It is a member of the large class of silicon compounds which comprise silicon clusters, silane oligomers, poly(siloxanes), and poly(silanes). The last mentioned polymers are of considerable interest because of their unusual electrical and photoelectrical properties. It has been shown that in these polymers the effect of ...