Residual Energy Harvesting from Light Transients Using Hematite as an Intrinsic Photocapacitor in a Symmetrical Cell

Autor(es)

van Leeuwen, Nicole S. ^{[1, 2]} ; Blom, Burgert ^[2] ; Xie, Mengying ^[3] ; Adamaki, Vana ^[3] ; Bowen, Chris R. ^[3] ; de Araujo, Moises A. ^[4] ; Mascaro, Lucia H. ^[4] ; Cameron, Petra J. ^[1] ; Marken, Frank ^[1]

Afiliação do(s) autor(es)

^[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon - England

^[2] Maastricht Univ, Maastricht Sci Programme, NL-6200 MD Maastricht - Netherlands

^[3] Univ Bath, Dept Mech Engn, Bath BA2 7AY, Avon - England

^[4] San Carlos Fed Univ, Dept Chem, Rod Washington Luiz, Km235, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACS APPLIED ENERGY MATERIALS; v. 1, n. 1, p. 38-42, JAN 2018.
• Citações Web of Science: 2

Resumo

Hematite as a sustainable photoabsorber material offers a band gap close to 2 eV and photoanode characteristics, but usually requires additional catalysts to enhance surface redox chemistry during steady state light energy harvesting for water splitting. Here, for a highly doped hematite film, sufficient intrinsic photocapacitor behavior is reported for the conversion of light transients into energy. Residual energy is harvested in a symmetric architecture with two opposing mesoporous hematite films on conductive glass. Transient light energy harvesting is shown to occur without the need for water splitting. (AU)

• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs