Buscar
On the methods of calculation of the charge collection efficiency of dye sensitized solar cells
(Royal Society of Chemistry, 2013)
The charge collection efficiency is one of the most critical parameters of photovoltaic devices. In this paper we provide the analysis and comparison between several approaches for the calculation of the collection efficiency ...
Surface Passivation of Nanoporous TiO2 via Atomic Layer Deposition of ZrO2 for Solid-State Dye-Sensitized Solar Cell Applications
(American Chemical Society, 2009)
We report here the utilization of atomic layer deposition to passivate surface trap states in mesoporous TiO2 nanoparticles for solid-state dye-sensitized solar cells based on 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylami ...
Optical Filter Based on a Spatially Patterned Kinoform Diffractive Lens
(Institute of Electrical and Electronics Engineers (IEEE), 2009)
We demonstrate a compact all-diffractive setup for spectral synthesis. The system is composed of a circularly symmetric mask attached to a kinoform diffractive lens. Following diffraction-based analysis, a Fourier transform ...
A star-shaped sensitizer based on thienylenevinylene for dye-sensitized solar cells
(Elsevier, 2013-01)
A novel star-shaped dye based on highly conjugated oligothienylenevinylene (nTV) bearing pendant solubilizing hexyl chains and end-capped with three tetramethylammonium cyanoacetates as anchoring groups has been synthetized. ...
Quantum Dot Based Heterostructures for Unassisted Photoelectrochemical Hydrogen Generation
(Wiley, 2013-02)
TiO2 hollow nanowires (HNWs) and nanoparticles (NPs) constitute promising architectures for QDs sensitized photoanodes for H2 generation. We sensitize these structures with CdS/CdSe quantum dots by two different methods ...
Solution-processed small molecule:fullerene bulk-heterojunction solar cells: impedance spectroscopy deduced bulk and interfacial limits to fill-factors
(Royal Society of Chemistry, 2013)
Using impedance spectroscopy, we demonstrate that the low fill factor (FF) typically observed in small molecule solar cells is due to hindered carrier transport through the active layer and hindered charge transfer through ...
Segmental dynamics in poly(ε-caprolactone)/poly(L-lactide) copolymer networks
(Wiley, 2009)
Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both macromonomers ...
Ion selectivity of a biological channel at high concentration ratio: insights on small ion diffusion and binding
(American Chemical Society, 2009)
The ionic selectivity of the bacterial porin OmpF has been investigated in several chloride salts of alkali metal cations under a wide range of concentration ratios. We report a novel way of studying the several factors ...
Controlled Carbon Nitride Growth on Surfaces for Hydrogen Evolution Electrodes
(Wiley, 2014-04-01)
Efficient and low-cost electrocatalysts for the hydrogen evolution reaction are highly desired for future renewable energy systems. Described herein is the reduction of water to hydrogen using a metal-free carbon nitride ...
Understanding the Role of Underlayers and Overlayers in Thin Film Hematite Photoanodes
(Wiley, 2014-12-23)
Recent research on photoanodes for photoelectrochemical water splitting has introduced the concept of under- and overlayers for the activation of ultrathin hematite films. Their effects on the photocatalytic behavior were ...