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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Design, synthesis and characterization of 1,8-naphthalimide based fullerene derivative as electron transport material for inverted perovskite solar cells

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Autor(es):
Sivakumar, Gangala [1] ; Bertoni, Alden Hermsdorff [1] ; Kim, Hui-Seon [2] ; Marchezi, Paulo Ernesto [1] ; Bernardo, Douglas Rosa [1] ; Hagfeldt, Anders [2] ; Graetzel, Michael [2, 3] ; Zakeeruddin, Shaik M. [3] ; Nogueira, Ana Flavia [1]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, LNES, Chem Inst, UNICAMP, POB 6154, BR-13083970 Campinas, SP - Brazil
[2] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Sch Basic Sci, CH-1015 Lausanne - Switzerland
[3] Ecole Polytech Fed Lausanne, Lab Photomol Sci, Inst Chem Sci & Engn, Sch Basic Sci, CH-1015 Lausanne - Switzerland
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Synthetic Metals; v. 249, p. 25-30, MAR 2019.
Citações Web of Science: 0
Resumo

A new fullerene derivative, PC61BNI, was designed and synthesized in which {[}6,6]-phenyl C-61-butyric acid methyl ester (PC61BM) was modified by replacing the methyl group with 1,8-naphthalimide (NI) to investigate the molecular structure modification effect on perovskite solar cell performance. Inverted perovskite solar cells were fabricated employing PC61BNI as an electron transport material (ETM) and its performance was compared with that of the device fabricated using PC61BM. Optical and electrochemical properties of the PC61BNI were characterized, and how NI substitution affects the solar cells performance was investigated. The photoluminescence quenching experiments confirmed efficient electron injection from perovskite film into PC61BNI layer. The lowest unoccupied molecular orbital (LUMO) energy level of PC61BNI (-3.75 eV) was found to be higher than that of PC61BM (-3.91 eV). The device fabricated with PC61BNI exhibited a power conversion efficiency (PCE) of 10.79% with photocurrent density (Jsc) of 20.23 mA/cm(2), open-circuit voltage (Voc) of 1.078 V and fill factor (FF) of 0.497. (AU)

Processo FAPESP: 14/13667-6 - Non-Fullerene, small molecular Acceptors for organic Photovoltaics
Beneficiário:Sivakumar Gangala
Linha de fomento: Bolsas no Brasil - Pós-Doutorado