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Assessing possibilities and limits for solar cells
(Wiley, 2011-05-05)
What are the solar cell efficiencies that we can strive towards? We show here that several simple criteria, based on cell and module performance data, serve to evaluate and compare all types of today's solar cells. Analyzing ...
Interfacial engineering of quantum dot-sensitized TiO2 fibrous electrodes for futuristic photoanodes in photovoltaic applications
(Royal Society of Chemistry, 2012)
Herein we report generic surface treatment approaches to improve the electronic interfaces of quantum dot-sensitized TiO2 fiber electrodes, thereby promoting their photoanode performance. Highly dense, continuous and ...
Impedance Spectroscopy Analysis of the Effect of TiO2 Blocking Layers on the Efficiency of Dye Sensitized Solar Cells
(American Chemical Society, 2012)
The introduction of a dense TiO2 layer between the mesoporous TiO2 network and the charge collector in dye-sensitized solar cell anodes has been claimed to improve the performance of solar cell devices. Two mechanisms have ...
Multichannel Radio-Frequency Arbitrary Waveform Generation Based on Multiwavelength Comb Switching and 2-D Line-by-Line Pulse Shaping
(IEEE, 2012-06)
We demonstrate a multichannel time-multiplexed
radio-frequency arbitrary waveform generator. The system combines a switching scheme of multiwavelength optical frequency
combs with a novel 2-D line-by-line pulse shaper ...
Noise Comparison of RF Photonic Filters Based on Coherent and Incoherent Multiwavelength Sources
(IEEE, 2012)
A filtered microwave photonic (MWP) link
implemented with an optical frequency comb as a multitap
optical source offers a significant improvement in noise
characteristics when compared to a spectrally sliced broadband
incoherent ...
Analysis of the Origin of Open Circuit Voltage in Dye Solar Cells
(American Chemical Society, 2012)
Changes in the composition of the electrolyte are known to affect the parameters that determine the performance of dye solar cells. This paper describes a robust method for the analysis of the photovoltage in dye solar ...
Equivalent Circuit of Electrons and Holes in Thin Semiconductor Films for Photoelectrochemical Water Splitting Applications
(American Chemical Society, 2012)
A simple model for the kinetics of electrons and holes in a thin semiconductor film in photoelectrochemical water splitting conditions is discussed, with a focus to discriminate between trap-assisted recombination and ...
The combination of a polymer–carbon composite electrode with a high-absorptivity ruthenium dye achieves an efficient dye-sensitized solar cell based on a thiolate–disulfide redox couple
(Royal Society of Chemistry, 2012)
To overcome the intrinsic shortcomings of the traditional iodide–triiodide redox couple and
pursue a further performance improvement, intense efforts have been made to exploit alternative
redox shuttles in dye-sensitized ...
Characterization of nanostructured hybrid and organic solar cells by impedance spectroscopy
(RSC Publishing, 2011-04-06)
We review the application of impedance spectroscopy in dye-sensitized solar cells, quantum dot-sensitized solar cells and organic bulk heterojunction solar cells. We emphasize the interpretation of the impedance parameters ...
Olefin Epoxidation by Molybdenum Peroxo Compound: Molecular Mechanism Characterized by the Electron Localization Function and Catastrophe Theory
(ACS, 2011-02)
The oxygen atom transfer reaction from the Mimoun-type complex MoO(η2-O2)2OPH3 to ethylene C2H4 affording oxirane C2H4O has been investigated within the framework of the Bonding Evolution Theory in which the corresponding ...