Bulk and epitaxial composites of Yb:KLu(WO4)2 were grown and characterized. CW-lasing @1μm was demonstrated achieving conversion efficiencies of 50% and output powers of 1W for the bulk and 25.5% and 0.5W for the composite Yb:KLu(WO4)2. ©2005 Optical Society of America OCIS codes: (140.5680) Rare earth and transition metal solid-state lasers; (140.3380) Laser materials

A tris(2,2'-bipyridine)cobalt(II)/(III) based polymer gel electrolyte has been successfully applied in conjunction with an organic carbazole dye in the construction of stable dye-sensitized solar cells with an energy conversion efficiencies of 8.7% and 10% at 1 sun and 0.1 sun light intensity.

Experiments with refuse-derived fuel (RDF) were performed on a single-stage plasma gasification reactor system. The performance of the process in converting the feedstock to syngas is assessed for different oxidizing agents (H2O, CO2 + H2O and CO2 + O2). The experimental results show that syngas composition varies significantly with gasifying agent(s), while carbon conversion efficiencies vary ...

A new evaporable electron acceptor material for organic photovoltaics based on N-ethyl barbituric acid bithiophene (EBB) has been demonstrated. Bilayer devices fabricated with this non-fullerene acceptor and boron subphthalocyanine chloride (SubPc) donor produce power conversion efficiencies as high as 2.6% with an extremely large open-circuit voltage approaching 1.4 V.

The technology behind a large area array of flexible solar cells with a unique design and semitransparent blue appearance is presented. These modules are implemented in a solar tree installation at the German pavilion in the EXPO2015 in Milan/IT. The modules show power conversion efficiencies of 4.5% and are produced exclusively using standard printing techniques for large-scale production.

This paper presents the different power converters for grid integration of wind power systems. In wind power systems while integrating with grid, power quality issues are becoming more predominant. This can solve by using power electronics converters like two level back to back converter and matrix converters. Converters are compared on the basis of efficiencies, voltage conversion ratios and T...

We have synthesised and characterised a new low-gap conjugated polymer, with a broad absorption profile. In blends with a C(70) derivative we demonstrate power conversion efficiencies of 0.76%. We show electroluminescence from the polymer peaking at 956 nm, and quantum efficiency of 0.02% in a blend.

This communication reports for the first time the direct utilisation of urine in MFCs for the production of electricity. Different conversion efficiencies were recorded, depending on the amount treated. Elements such as N, P, K can be locked into new biomass, thus removed from solution, resulting in recycling without environmental pollution.

Efficient energy transfer between neon excimer molecules and hydrogen has been found. A small, high gas density light source has been developed, emitting entirely on the hydrogen 2p-l s transition at I 21 .567nm (Lyman-a). Light output densities of lOW/cm2 are obtained. Electron beam energy conversion efficiencies of lO% have been measured.

We have synthesized soluble TiOPc derivatives containing alkoxy groups for use as additives in dye-sensitized solar cells (DSSCs). The DSSC devices containing these TiOPc derivatives exhibited short-circuit current densities of 8.49~10.04 mA/cm(2) and power conversion efficiencies of 2.73~3.62 % under AM 1.5 illumination and 100 mW/cm(2) irradiation.