Design modifications in electrospinning setup for advanced applications

10.1155/2011/317673Journal of Nanomaterials2011

Dye molecules in electrolytes: new approach for suppression of dye-desorption in dye-sensitized solar cells

The widespread commercialization of dye-sensitized solar cells remains limited because of the poor long-term stability. We report on the influence of dye-molecules added in liquid electrolyte on long-term stability of dye-sensitized solar cells. Dye-desorption from the TiO2 surface during long-term cycling is one of the decisive factors that degrade photocurrent densities of devices which in turn determine the efficiencies of the devices. For the first time, desorption of dye from the TiO2 surface could be suppressed by controlling thermodynamic equilibrium; by addition of dye molecules in the electrolyte. The dye molecules in the electrolyte can suppress the driving forces for the adsorbed dye molecules to be desorbed from TiO2 nanoparticles. As a result, highly enhanced device stabilities were achieved due to the reduction of dye-desorption although there was a little decrease in the initial efficiencies.open4

Narrowing the Gaps Through Regional Cooperation Institutions and Governance Systems

Regional governance systems and national frameworks to address climate change and accelerate green growth in Asia are reviewed and tools to address climate change are outlined. Options for regional level political institutions and financial architecture needed to fulfill voluntary pledges and programs are suggested and potentials, options, and challenges regarding monitoring, reporting, and verification systems are analyzed. In conclusion, policy measures for adaption and mitigation to climate change are provided

Metal oxides for dye-sensitized solar cells

10.1111/j.1551-2916.2008.02870.xJournal of the American Ceramic Society922289-30