Reported by: XIAO Ke
Translated by: HU Yujia
Edited by: Jonathan Wylie
Recently, the State Key Laboratory of Urban Water Resource and Environment revealed thatHIT Professor LI Xin from the Department of Chemistry, School of Science, and his task force had carried out a study of dye-sensitized solar cells together with Professor Leone Spiccia from Monash University and made important progress. Their latest research results Controlling Interfacial Recombination in Aqueous Dye-Sensitized Solar Cells by Octadecyltrichlorosilane Surface Treatment has been published inthe internationally renowned journal AngewandteChemie International Edition (Angew.Chem.Int.Ed.2014, 53,6933-6937.) The first author of the paper is Dr. Cunku Dong, who is guided by Professor LI and Professor Spiccia. This research is funded by the State Key Laboratory of Urban Water Resource and Environment and the Specialized Research Fund for the Doctoral Program of Higher Education.
Dye-Sensitized Solar Cells (DSSCs) arecalled "the Next generation" of solar cells, which has broad application prospects. Conventional dye-sensitized solar cells make use of an organic solvent which has shortcomings, such as a low boiling point, volatilization and easy combustion, making difficulties for the battery package. Contrastingly, aqueous electrolytes have a very small saturated vapor pressure, no volatilization, a high boiling point and wide electrochemical window. This paper explains research of theoctadecyltrichlorosilane modified passivation process on the exposed surface of titanium dioxide photoanodes after beingdye-sensitized through experiments and the method of molecular dynamics simulation theory. The research shows that alkyl silane, when modified, can greatly inhibit the interface of electron recombination, can enhance the open circuit voltage, can short-circuit photocurrent density, and can make the aqueous electrolyte dye-sensitized solar cell efficiency reach a record 5.74%.
After publishing a series of papers about research on dye sensitized solar cellsinAdvanced Energy Materials in 2012, Chemistry - A European Journal in 2013, Nanometerscale in 2014, this research paper became another important one published ina well-known journal of Chemistry by Professor LI Xin and his task force.
After publishing a series of papers about research on dye sensitized solar cellsinAdvanced Energy Materials in 2012, Chemistry - A European Journal in 2013, Nanometerscale in 2014, this research paper became another important one published ina well-known journal of Chemistry by Professor LI Xin and his task force.
Relevant Picture from the Paper
