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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.)

Electrodeposition of Fe-doped Sb2Se3 thin films for photoelectrochemical applications and study of the doping effects on their properties

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Autor(es):
Costa, Magno Barcelos [1] ; de Souza Lucas, Francisco Willian [1] ; Mascaro, Lucia Helena [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Fed Sao Carlos, Interdisciplinary Lab Electrochem & Ceram LIEC, Rd Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Journal of Solid State Electrochemistry; v. 22, n. 5, SI, p. 1557-1562, MAY 2018.
Citações Web of Science: 4
Resumo

Sb2Se3 (SSe) has been highlight as a low-cost, less complex, low toxicity, and earth-abundant photovoltaic (PV) absorber not only because of its excellent properties but also because of its demonstrated 5.6% certified efficiency and decent device stability. An understanding of the effects of intentional dopants on the properties of this material would help to further improve SSe PV devices. In this work, Fe-doped SSe thin film was obtained by electrodeposition at different levels of doping, which is an easy, cheap, and scalable technique. At the studied levels, this dopant caused low influence in band gap and morphologic-structural properties of the films; however, it did impact their electronic properties and photoactivity toward hydrogen gas evolution. The film obtained from a deposition bath composed of 5% of Fe presented a photocurrent similar to that shown by the undoped film, despite showing a carrier density that was three orders of magnitude higher. This behavior makes us believe that, compared to the undoped film, a photovoltaic device made with this 5% Fe-doped film would have a higher fill factor and efficiency. (AU)

Processo FAPESP: 16/10513-3 - Preparação e aplicação de materiais eletródicos nanoestruturados em Eletro/fotoeletrocatálise sob regime de fluxo contínuo: uma nova abordagem para síntese e funcionalização de sistemas heterocíclicos
Beneficiário:Francisco Willian de Souza Lucas
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
Beneficiário:Elson Longo da Silva
Linha de fomento: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs