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  • Ahdikari, RajeshCentre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada (författare)

High Efficiency, Pt-free Photoelectrochemical Cells for Solar Hydrogen Generation based on “Giant” Quantum Dots

  • Artikel/kapitelEngelska2016

Förlag, utgivningsår, omfång ...

  • Elsevier BV,2016
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:ltu-13475
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-13475URI
  • https://doi.org/10.1016/j.nanoen.2016.07.010DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Validerad; 2016; Nivå 2; 20160706 (andbra)
  • Quantum dot (QD) sensitized TiO2 is considered as a highly promising photoanode material for photoelectrochemical (PEC) solar hydrogen production. However, due to its limited stability, the photoanode suffers from degradation of its long-term PEC performance. Here, we report the design and characterization of a high-efficiency and long-term stable Pt-free PEC cell. The photoanode is composed of a mesoporous TiO2 nanoparticle film sensitized with “giant” core@shell QDs for PEC solar hydrogen generation. The thick shell enhances light absorption in the visible range, increases the stability of the QDs and does not inhibit charge separation, injection and transport, needed for proper operation of the device. We prepared thin films of Cu2S nanoflakes through a simple and reproducible procedure, and used them as counter-electrodes replacing the standard Pt film, resulting in equivalent performances of the PEC cell. We obtained an unprecedented photocurrent density (~10 mA/cm2) for “giant” QDs based PEC devices (and corresponding H2 generation) and a very promising stability, indicating that the proposed cell architecture is a good candidate for long-term stable QD-based PEC solar hydrogen generation.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Jin, LeiCentre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada (författare)
  • Navarro-Pardo, FabolaCentre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada (författare)
  • Benetti, DanieleCentre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada (författare)
  • AlOtaibi, BandarDept. of Electrical and Computer Eng., McGill University, 3480 Univ. Str. W, Montreal, QC H3A 0E9, Canada (författare)
  • Vanka, SrinivasDept. of Electrical and Computer Eng., McGill University, 3480 Univ. Str. W, Montreal, QC H3A 0E9, Canada (författare)
  • Zhao, HaiguangCentre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada (författare)
  • Mi, ZetianDept. of Electrical and Computer Eng., McGill University, 3480 Univ. Str. W, Montreal, QC H3A 0E9, Canada (författare)
  • Vomiero, AlbertoLuleå tekniska universitet,Materialvetenskap,Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada(Swepub:ltu)albvom (författare)
  • Rosei, FredericoCentre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, Canada; Institute for Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, PR China (författare)
  • Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel-Boulet, Varennes, QC J3X1S2, CanadaDept. of Electrical and Computer Eng., McGill University, 3480 Univ. Str. W, Montreal, QC H3A 0E9, Canada (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Nano Energy: Elsevier BV27, s. 265-2742211-2855

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