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Layered solid and gel polyelectrolytes for application in dye solar cells

Grant number: 13/05911-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): July 01, 2013
Effective date (End): June 30, 2016
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal researcher:Heloise de Oliveira Pastore
Grantee:Marcos Antonio Santana Andrade Junior
Home Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


An increase in global energy consumption associated with the intensive use of fossil fuels has intensified the search for renewable energy development. The main sources of energy, such as fossil, hydro and nuclear, have attracted attention because they are pollutants, cause environmental hazards or even to human health and they are exhaustible in long term. Due to the large supply of solar energy on Earth, new materials have been developed for application in solar cells in order to use this energy, the conversion of solar radiation into electrical energy. Recently, solar cells using liquid electrolytes have limited use due to problems of corrosion and evaporation, reducing the efficiency in function of time, besides having low energy conversion efficiency (> 10%). Therefore, it has been sought to obtain solid electrolytes as alternatives to liquid electrolytes, since the latter do not involve the use of a redox pair. In this work, we intend to use aminofunctionalized magnesium phyllosilicates as carriers of vacancies. The magnesium phyllosilicate consists of an octahedral layer of magnesium hydroxide oxide surrounded by two layers of silica, according to a molar ratio Si/Mg equal to 4/3. In order to increase the amount of vacancy in the conductive material, the growth of dendrimers, such as polyethyleneimine and polyamidoamine, will be performed using the aminopropyl chains on the surface, expecting a higher energy conversion efficiency of solar cells. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANTANA ANDRADE, JR., MARCOS A.; TIIHONEN, ARMI; MIETTUNEN, KATI; LUND, PETER; NOGUEIRA, ANA F.; PASTORE, HELOISE O. Gel Electrolytes with Polyamidopyridine Dendron Modified Talc for Dye-Sensitized Solar Cells. ACS APPLIED MATERIALS & INTERFACES, v. 9, n. 24, p. 20454-20466, JUN 21 2017. Web of Science Citations: 5.
ANDRADE, JR., MARCOS A. S.; MIETTUNEN, KATI; TIIHONEN, ARMI; LUND, PETER D.; NOGUEIRA, ANA E.; PASTORE, HELOISE O. Stabilizing Dendron-Modified Talc-Based Electrolyte for Quasi-Solid Dye-Sensitized Solar Cell. Electrochimica Acta, v. 228, p. 413-421, FEB 20 2017. Web of Science Citations: 6.
ANDRADE, JR., MARCOS A. S.; NOGUEIRA, ANA F.; MIETTUNEN, KATI; TIIHONEN, ARMI; LUND, PETER D.; PASTORE, HELOISE O. Quasi-solid electrolyte with polyamidoamine dendron modified-talc applied to dye-sensitized solar cells. Journal of Power Sources, v. 325, p. 161-170, SEP 1 2016. Web of Science Citations: 8.
ANDRADE, JR., MARCOS A. S.; PASTORE, HELOISE O. Toward a Delaminated Organotalc: The Use of Polyamidoamine Dendrons. ACS APPLIED MATERIALS & INTERFACES, v. 8, n. 3, p. 1884-1892, JAN 27 2016. Web of Science Citations: 8.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
JUNIOR, Marcos Antonio Santana Andrade. Solid and gel layered polyelectrolytes for application in dye solar cells. 2016. 177 f. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Química Campinas, SP.

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