Abstract
A brief review on the development of dye-sensitized solar cells (DSSCs) is presented, with the main focus on ruthenium complexes, as photosensitizers of nanocrystalline TiO2 films. In a DSSC, the charge separation is initiated at the adsorbed dye, which is bound at the interface of a TiO2 film. Careful modification of the dyes can tune the spectroscopic, electrochemical properties and photovoltaic performance of the solar cells. It is necessary to optimize the properties of the dye in conjunction with other factors in order to best exploit and be fully compatible with other cell modifications in the development of cheap and efficient photovoltaic systems. In this review, current strategies for the molecular design of the ruthenium complexes including improving the light harvesting in the visible and near-IR region, increasing high optical extinction coefficients and increasing the charge separation and stability of the dyes are discussed.
Keywords: Anchoring ligand, ancillary ligand, charge separation, dye-sensitized solar cells, electrolytes, fill factor, molar extinction coefficients, molecular design, open-circuit photocurrent, overall conversion efficiency, panchromatic sensitization, photovoltaic performances, ruthenium complexes, stability, short photocurrent
Call for Papers in Thematic Issues
Advances of Heterocyclic Chemistry with Pesticide Activity
Global food safety and security will continue to be a global concern for the next 50 years and beyond. Plant diseases have had a significant impact on food safety and security throughout the entire food chain, from primary production to consumption. While conventional chemical pesticides have been traditionally used for ...read more
Calculation design of covalent/metal organic framework based catalysts
This research area combines theoretical computation and screening with machine learning for the design of covalent/metal organic framework-based catalysts, bridging the disciplines of organic chemistry, physical chemistry, computational chemistry, materials science, and machine learning. It covers several critical aspects: designing and synthesizing organic catalysts for improved performance, applying computational methods ...read more
Carbohydrates conversion in biofuels and bioproducts
Biomass pretreatment, hydrolysis, and saccharification of carbohydrates, and sugars bioconversion in biofuels and bioproducts within a biorefinery framework. Carbohydrates derived from woody biomass, agricultural wastes, algae, sewage sludge, or any other lignocellulosic feedstock are included in this issue. Simulation, techno-economic analysis, and life cycle analysis of a biorefinery process are ...read more
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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