Title Surface passivation of GaN and GaN/AlGaN heterostructures by dielectric films and its application to insulated-gate heterostructure transistors Author(s) Hashizume, Tamotsu; Ootomo, Shinya; Inagaki, Takanori; Hasegawa, Hideki Citation Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 21(4): 18281838 Issue Date 2003-08-05 Doc URL http://hdl.handle.net/211...

Two dimensional (2D) materials with unique physical or chemical prperties has triggered worldwide interest in the fields of material science, condensed matter physics, and devices physics. Vertically stacking different 2D enables creation a large variety van der Waals heterostructures. The heterostructures robust merits electronic prperties. Using density functional theory calculations, structu...

conclusions the at1r a1166c polymorphism appeared not to be associated with the presence of acs in the population studied. background there are very limited data for iranian populations on the predisposing genetic factors for acute coronary syndrome (acs). results there was no statistical difference in the genotype frequency of patients and healthy subjects with regard to age and gender (p > 0....

conclusions regarding the results, it could be suggested that the reason for not being able to control diabetes was the existence of differences among viewpoints while by getting to know the obstacles for controlling diabetes from the viewpoints of the three studied groups, more effective planning for controlling diabetes could be possible. results the results of this research showed that there...

: In this work, we present a theoretical study of the transport properties of two finite and parallel armchair graphene nanoribbons connected to two semi-infinite leads of the same material. Using a single Π-band tight binding Hamiltonian and based on Green's function formalisms within a real space renormalization techniques, we have calculated the density of states and the conductance of these...

Semiconductor sensitized solar cells, a promising candidate for next-generation photovoltaics, have seen notable progress using 0-D quantum dots as light harvesting materials. Integration of higher-dimensional nanostructures and their multi-composition variants into sensitized solar cells is, however, still not fully investigated despite their unique features potentially beneficial for improvin...

We report an enhanced magnetoelectric (ME) effect in a heterostructure consisting of a long-type, longitudinally-longitudinally polarized 0.71Pb(Mg(1∕3)Nb(2∕3))O(3)-0.29PbTiO(3) (PMN-PT) piezoelectric single-crystal transformer with its input part sandwiched between two longitudinally magnetized Tb(0.3)Dy(0.7)Fe(1.92) (Terfenol-D) magnetostrictive alloy bars. The observed ME effect has two inde...

We report on high quality-factor Heterostructure Barrier Varactor making benefit of epitaxial stacking and planar integration, with a cut-off frequency in the far infrared region. To this aim, high doping concentrations in the depletion (2x10 17 cm) and contact (1x10 cm) InGaAs regions lattice matched to an InP substrate and an InAlAs/AlAs blocking barrier scheme were used. Planar integration o...

This paper presents the experimental results concerning the study of the photoelectric behaviour of a multijunction type multilayer mixed heterostructure with photosynthetic pigments (Chl) having the form: SnOx/nCdS:pChl-p Chl-pCuxS-Al-Chl/Cu. Being constituted from more series-superposed and vertically-illuminated semiconductor junctions, the respective photosystem allows the selective usage o...