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α-DTC70 Fullerene Performs Significantly Better than ß-DTC70 as Electron Transporting Material in Perovskite Solar Cells.
Castro, Edison; Fernandez-Delgado, Olivia; Artigas, Albert; Zavala, Gerardo; Liu, Fang; Moreno-Vicente, Antonio; Rodríguez-Fortea, Antonio; Velasquez, José D; Poblet, Josep M; Echegoyen, Luis.
Afiliação
  • Castro E; Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States.
  • Fernandez-Delgado O; Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States.
  • Artigas A; Institut de Química Computacional i Catàlisi (IQCC), Department de Química, Universitat de Girona, 17003 Girona, Catalonia, Spain.
  • Zavala G; Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States.
  • Liu F; Department of Chemistry, Columbia University, New York, New York 10027, United States.
  • Moreno-Vicente A; Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007, Tarragona (Spain).
  • Rodríguez-Fortea A; Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007, Tarragona (Spain).
  • Velasquez JD; Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States.
  • Poblet JM; Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, A.A. 25360 Cali, Colombia.
  • Echegoyen L; Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007, Tarragona (Spain).
J Mater Chem C Mater ; 8(20): 6813-6819, 2020 May 28.
Article em En | MEDLINE | ID: mdl-33777397
ABSTRACT
In this work, two new C70 isomers, α and ß bis(2-(thiophen-2-yl)ethyl)-C70-fullerene mono-adducts (DTC70), were synthesized, characterized and used as electron transporting materials (ETMs) in perovskite solar cells (PSCs). Our results show that the α isomer improves both the J sc and FF values of the devices, when compared to the results for the ß-isomer and to those for phenyl-C70-butyric acid methyl ester (PC71BM), used as control. Devices based on α-DTC70 achieved a power conversion efficiency (PCE) of 15.9%, which is higher than that observed with PC71BM (15.1%).
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article