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  • Svanström, SebastianUppsala universitet,Molekyl- och kondenserade materiens fysik (författare)

Toward an alternative approach for the preparation of low-temperature titanium dioxide blocking underlayers for perovskite solar cells

  • Artikel/kapitelEngelska2019

Förlag, utgivningsår, omfång ...

  • 2019
  • Royal Society of Chemistry,2019
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:kth-252234
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-252234URI
  • https://doi.org/10.1039/c8ta04246bDOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-390040URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

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

Anmärkningar

  • QC 20190612
  • The anodic electrodeposition method is investigated as an alternative technique for the preparation of a titanium oxide (TiO 2 ) blocking underlayer (UL) for perovskite solar cells (PSCs). Extremely thin Ti IV -based films are grown from aqueous acidic titanium(iii) chloride in an electrochemical cell at room temperature. This precursor layer is converted to the UL (ED-UL), in a suitable state for PSC applications, by undertaking a sintering step at 450 °C for half an hour. PSCs with the composition of the light-absorbing material FA 0.85 MA 0.10 Cs 0.05 Pb(I 0.87 Br 0.13 ) 3 (FA and MA denote the formamidinium and methylammonium cations, respectively) based on the ED-UL are compared with PSCs with the UL of a standard type prepared by the spray-pyrolysis method at 450 °C from titanium diisopropoxide bis(acetylacetonate) (SP-UL). We obtain power conversion efficiencies (PCEs) of over 20% for mesoscopic perovskite devices employing both ED-ULs and SP-ULs. Slightly higher fill factor values are observed for ED-UL-based devices. In addition, ED-ULs prepared by the same method have also been applied in planar PSCs, resulting in a PCE exceeding 17%, which is comparable to that for similar PSCs with an SP-UL. The preparation of ED-ULs with a lower sintering temperature, 150 °C, has also been examined. The efficiency of a planar PSC incorporating this underlayer was 14%. These results point out to the possibility of applying ED-ULs in flexible planar PSCs in the future.

Ämnesord och genrebeteckningar

  • NATURVETENSKAP Kemi Materialkemi hsv//swe
  • NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
  • Anodic oxidation
  • Chlorine compounds
  • Efficiency
  • Lead compounds
  • Perovskite
  • Sintering
  • Solar cells
  • Spray pyrolysis
  • Temperature
  • Titanium dioxide
  • Titanium oxides
  • Absorbing materials
  • Acetylacetonates
  • Anodic electrodeposition
  • Low temperatures
  • Lower sintering temperatures
  • Methylammonium cations
  • Power conversion efficiencies
  • Spray pyrolysis method
  • Perovskite solar cells

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

  • Zhao, L.Swiss Fed Inst Technol Lausanne EPFL, EPFL SB ISIC LPI, Lab Photon & Interfaces, Inst Chem Sci & Engn, Chemin Alambics,Stn 6, CH-1015 Lausanne, Switzerland;Peking Univ, Dept Phys, State Key Lab Artificial Microstruct & Mesoscop P, Beijing 100871, Peoples R China (författare)
  • Nonomura, K.Swiss Fed Inst Technol Lausanne EPFL, EPFL SB ISIC LSPM, Inst Chem Sci & Engn, Lab Photomol Sci, Chemin Alambics,Stn 6, CH-1015 Lausanne, Switzerland (författare)
  • Oo, T. Z.Univ Mandalay, Dept Phys, Mat Res Lab, Mandalay 05032, Myanmar (författare)
  • Zakeeruddin, S. M.Swiss Fed Inst Technol Lausanne EPFL, EPFL SB ISIC LPI, Lab Photon & Interfaces, Inst Chem Sci & Engn, Chemin Alambics,Stn 6, CH-1015 Lausanne, Switzerland (författare)
  • Vlachopoulos, N.Swiss Fed Inst Technol Lausanne EPFL, EPFL SB ISIC LSPM, Inst Chem Sci & Engn, Lab Photomol Sci, Chemin Alambics,Stn 6, CH-1015 Lausanne, Switzerland (författare)
  • Sloboda, TamaraKTH,Tillämpad fysikalisk kemi,KTH Royal Inst Technol, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden(Swepub:kth)u18l9rqa (författare)
  • Svanström, S. (författare)
  • Cappel, Ute B.KTH,Tillämpad fysikalisk kemi,KTH Royal Inst Technol, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden(Swepub:kth)u15ztiw5 (författare)
  • Hagfeldt, A.Swiss Fed Inst Technol Lausanne EPFL, EPFL SB ISIC LSPM, Inst Chem Sci & Engn, Lab Photomol Sci, Chemin Alambics,Stn 6, CH-1015 Lausanne, Switzerland (författare)
  • Grätzel, M.Swiss Fed Inst Technol Lausanne EPFL, EPFL SB ISIC LPI, Lab Photon & Interfaces, Inst Chem Sci & Engn, Chemin Alambics,Stn 6, CH-1015 Lausanne, Switzerland (författare)
  • Uppsala universitetMolekyl- och kondenserade materiens fysik (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Materials Chemistry A: Royal Society of Chemistry7:17, s. 10729-107382050-74882050-7496

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