A low-cost spiro[fluorene-9,9 '-xanthene]-based hole transport material for highly efficient solid-state dye-sensitized solar cells and perovskite solar cells
2016 (English)In: Energy & Environmental Science, ISSN 1754-5692, E-ISSN 1754-5706, Vol. 9, no 3, 873-877 p.Article in journal (Refereed) PublishedText
A low-cost spiro[fluorene-9,9'-xanthene] (SFX) based organic hole transport material (HTM) termed X60 was designed and synthesized using a two-step synthetic route. Devices with X60 as HTM showed high power conversion efficiencies (PCEs) amounting to 7.30% in solid-state dye-sensitized solar cells (ssDSCs) and 19.84% in perovskite solar cells (PSCs), under 100 mW cm(-2) AM1.5G solar illumination. To the best of our knowledge, this is the first example of an easily synthesized spiro-structured HTM that shows comparable performance with respect to the well-known HTM Spiro-OMeTAD in both ssDSCs and PSCs. Furthermore, the facile synthesis of X60 from commercially available starting materials makes this HTM very promising for large-scale industrial production in the future.
Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 9, no 3, 873-877 p.
Chemical Sciences Energy Engineering
IdentifiersURN: urn:nbn:se:kth:diva-185089DOI: 10.1039/c6ee00056hISI: 000372243600013ScopusID: 2-s2.0-84960810981OAI: oai:DiVA.org:kth-185089DiVA: diva2:919664
QC 201604142016-04-142016-04-112016-04-14Bibliographically approved