In this work, we study the controlled doping of thin films of substituted nickel phthalocyanine, NiPcR8, where R=-SC6H13, with anthracene and TCNQ and investigate the effects of the extent of this doping on the optical and electrical properties of NiPcR8 films. Optical constants, namely index of refraction (n) and extinction coefficient (k) have increased for both types of doping, as determined...

Nanowires are quasi-one-dimensional single crystals with lateral dimensions that can be scaled-down to only a few nanometers. They can simultaneously act as active components and interconnects and therefore fulfill the two basic functions of any active device. However, controlled doping of III-V nanowires is challenging due to strong Fermi-level pinning as well as the kinetic and thermodynamic ...

The charge state of Ag and Au atoms and clusters (Ag4 and Au4, Ag5 and Au5) adsorbed on defective TiO2 anatase(101) and tetragonal ZrO2(101) has been systematically investigated as a function of oxide doping and defectivity using a DFT+U approach. As intrinsic defects, we have considered the presence of oxygen vacancies. As extrinsic defects, substitutional nitrogen- and niobium-doping have bee...

Organic light-emitting electrochemical cells (LEC) are promising for lighting applications but in many cases these devices suffer from unbalanced electrochemical doping, which cause instability and degradation of the cells. A predominant p-doping over n-doping causes an off-centered emissive p-n junction, which leads to poor powerconversion efficiency. Here, we report a half-gate LEC transistor...

Although the issue of doping an substances is one of the very popular scientifi c topics in the world, these kinds of research are very rare in Croatia. Th is paper looks at some aspects of using doping and substances in sport and discusses the reasons which have been considered to be fundamental for the growth of this problem lately, based on the professional and scientifi c experience of the ...

The authors report the design and performance of a versatile carbon doping system for solid-source molecular beam epitaxy using carbon tetrabromide !CBr4". This system is capable to achieve three orders of magnitude in doping by changing the CBr4 temperature along with varying the CBr4 leak rate into the growth chamber. The CBr4 temperature is controlled using thermoelectric coolers and thus ca...

An investigation of La and Ca doped Sr4Ru3O10, featuring a coexistence of interlayer ferromagnetism and intralayer metamagnetism, is presented. La doping readily changes magnetism between ferromagnetism and metamagnetism by tuning the density of states. It also results in different Curie temperatures for the c-axis and the basal plane, highlighting a rare spin-orbit coupling with the crystal fi...

Au nanoparticles and films are deposited onto clean graphene surfaces to study the doping effect of different Au configurations. Micro-Raman spectra show that both the doping type and level of graphene can be tuned by fine control of the Au deposition. The morphological structures of Au on graphene are imaged by transmission electron microscopy, which indicate a size-dependent electrical charac...

Three Gd22xCexRuSr2Cu2O102d samples (x50.5, as prepared and after high pressure oxygenation and x 50.7) have been investigated by synchrotron powder x-ray diffraction and magnetization measurements. Precise coordinates and site occupancies for the oxygen atoms have been refined from the x-ray experiments. Estimates of the hole doping of the copper oxide planes based on the bond lengths, via the...

Graphene's low intrinsic carrier concentration necessitates extrinsic doping to enhance its conductivity and improve its performance for application as electrodes or transparent conductors. Despite this importance limited knowledge of the doping process at application-relevant conditions exists. Employing in-situ carrier transport and Raman characterization of different dopants, we here explore...