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Sökning: id:"swepub:oai:DiVA.org:uu-532227" > High carrier mobili...

  • Pan, LinfengUniv Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England.;Univ Cambridge, Cavendish Lab, Cambridge, England.;Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Lausanne, Switzerland.;Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photomol Sci, Lausanne, Switzerland. (författare)

High carrier mobility along the [111] orientation in Cu2O photoelectrodes

  • Artikel/kapitelEngelska2024

Förlag, utgivningsår, omfång ...

  • Springer Nature,2024
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-532227
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-532227URI
  • https://doi.org/10.1038/s41586-024-07273-8DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

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

Anmärkningar

  • Correction in: Nature, vol. 629, article-ID E14DOI: 10.1038/s41586-024-07489-8
  • Solar fuels offer a promising approach to provide sustainable fuels by harnessing sunlight1,2. Following a decade of advancement, Cu2O photocathodes are capable of delivering a performance comparable to that of photoelectrodes with established photovoltaic materials3,4,5. However, considerable bulk charge carrier recombination that is poorly understood still limits further advances in performance6. Here we demonstrate performance of Cu2O photocathodes beyond the state-of-the-art by exploiting a new conceptual understanding of carrier recombination and transport in single-crystal Cu2O thin films. Using ambient liquid-phase epitaxy, we present a new method to grow single-crystal Cu2O samples with three crystal orientations. Broadband femtosecond transient reflection spectroscopy measurements were used to quantify anisotropic optoelectronic properties, through which the carrier mobility along the [111] direction was found to be an order of magnitude higher than those along other orientations. Driven by these findings, we developed a polycrystalline Cu2O photocathode with an extraordinarily pure (111) orientation and (111) terminating facets using a simple and low-cost method, which delivers 7 mA cm−2 current density (more than 70% improvement compared to that of state-of-the-art electrodeposited devices) at 0.5 V versus a reversible hydrogen electrode under air mass 1.5 G illumination, and stable operation over at least 120 h.

Ämnesord och genrebeteckningar

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

  • Dai, LinjieUniv Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England.;Univ Cambridge, Cavendish Lab, Cambridge, England. (författare)
  • Burton, Oliver J.Univ Cambridge, Dept Engn, Cambridge, England. (författare)
  • Chen, LuEcole Polytech Fed Lausanne, Lab Organometall & Med Chem, Inst Chem Sci & Engn, Lausanne, Switzerland.;Univ Cambridge, Yusuf Hamied Dept Chem, Cambridge, England. (författare)
  • Andrei, VirgilUniv Cambridge, Cavendish Lab, Cambridge, England.;Univ Cambridge, Yusuf Hamied Dept Chem, Cambridge, England. (författare)
  • Zhang, YouchengUniv Cambridge, Cavendish Lab, Cambridge, England. (författare)
  • Ren, DanEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Lausanne, Switzerland. (författare)
  • Cheng, JinshuiNankai Univ, Frontiers Sci Ctr New Organ Matter, Engn Res Ctr Thin Film Photoelect Technol, Renewable Energy Convers & Storage Ctr,Minist Educ, Tianjin, Peoples R China. (författare)
  • Wu, LinxiaoNankai Univ, Frontiers Sci Ctr New Organ Matter, Engn Res Ctr Thin Film Photoelect Technol, Renewable Energy Convers & Storage Ctr,Minist Educ, Tianjin, Peoples R China. (författare)
  • Frohna, KyleUniv Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England. (författare)
  • Abfalterer, AnnaUniv Cambridge, Cavendish Lab, Cambridge, England. (författare)
  • Yang, Terry Chien-JenUniv Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England.;Univ Cambridge, Cavendish Lab, Cambridge, England. (författare)
  • Niu, WenzheEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Lausanne, Switzerland. (författare)
  • Xia, MengEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Lausanne, Switzerland. (författare)
  • Hofmann, StephanUniv Cambridge, Dept Engn, Cambridge, England. (författare)
  • Dyson, Paul J.Ecole Polytech Fed Lausanne, Lab Organometall & Med Chem, Inst Chem Sci & Engn, Lausanne, Switzerland. (författare)
  • Reisner, ErwinUniv Cambridge, Yusuf Hamied Dept Chem, Cambridge, England. (författare)
  • Sirringhaus, HenningUniv Cambridge, Cavendish Lab, Cambridge, England. (författare)
  • Luo, JingshanNankai Univ, Frontiers Sci Ctr New Organ Matter, Engn Res Ctr Thin Film Photoelect Technol, Renewable Energy Convers & Storage Ctr,Minist Educ, Tianjin, Peoples R China. (författare)
  • Hagfeldt, AndersUppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photomol Sci, Lausanne, Switzerland(Swepub:uu)andehagf (författare)
  • Grätzel, MichaelEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Lausanne, Switzerland. (författare)
  • Stranks, Samuel D.Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England.;Univ Cambridge, Cavendish Lab, Cambridge, England. (författare)
  • Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England.;Univ Cambridge, Cavendish Lab, Cambridge, England.;Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, Lausanne, Switzerland.;Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photomol Sci, Lausanne, Switzerland.Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England.;Univ Cambridge, Cavendish Lab, Cambridge, England. (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Nature: Springer Nature628:8009, s. 765-7700028-08361476-4687

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