Influence of TiO2 compact layer precursor on the performance of perovskite solar cells

Paola Vivo (Corresponding Author), Anniina Ojanperä, Jan-Henrik Smått, Simon Sandén, Syed Ghufran Hashmi, Kimmo Kaunisto, Petri Ihalainen, Muhammad Talha Masood, Ronald Österbacka, Peter Lund, Helge Lemmetyinen

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Abstract

The optimization of the hole-blocking layer in perovskite solar cells (PSC), typically based on TiO2, is crucial, as it strongly affects the device performance. In this work, we thoroughly characterize the thickness, roughness, and crystal structure of a set of TiO2 compact layers produced by spin coating of different precursor sols and correlate the choice of the TiO2 precursor to the photovoltaic performance of the PSC. By replacing the commonly used titanium isopropoxide (TTIP) blocking layer precursor with titanium tetrachloride (TiCl4), a clear enhancement in the PSC performance was observed, particularly in the hysteresis behavior and stability. The results from the morphological/structural analysis and transient photoluminescence studies clarify the different behavior of the compact layers in PSCs.
Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalOrganic Electronics
Volume41
DOIs
Publication statusPublished - 1 Feb 2017
MoE publication typeA1 Journal article-refereed

Fingerprint

solar cells
Titanium
titanium
Spin coating
Polymethyl Methacrylate
Sols
Structural analysis
tetrachlorides
Hysteresis
Photoluminescence
Crystal structure
Surface roughness
structural analysis
coating
roughness
hysteresis
photoluminescence
crystal structure
optimization
Perovskite solar cells

Keywords

  • compact layer
  • hysteresis
  • perovskite solar cells
  • stability
  • TiCl4
  • TiO2
  • TiCl
  • TiO

Cite this

Vivo, P., Ojanperä, A., Smått, J-H., Sandén, S., Hashmi, S. G., Kaunisto, K., ... Lemmetyinen, H. (2017). Influence of TiO2 compact layer precursor on the performance of perovskite solar cells. Organic Electronics, 41, 287-293. https://doi.org/10.1016/j.orgel.2016.11.017
Vivo, Paola ; Ojanperä, Anniina ; Smått, Jan-Henrik ; Sandén, Simon ; Hashmi, Syed Ghufran ; Kaunisto, Kimmo ; Ihalainen, Petri ; Masood, Muhammad Talha ; Österbacka, Ronald ; Lund, Peter ; Lemmetyinen, Helge. / Influence of TiO2 compact layer precursor on the performance of perovskite solar cells. In: Organic Electronics. 2017 ; Vol. 41. pp. 287-293.
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Vivo, P, Ojanperä, A, Smått, J-H, Sandén, S, Hashmi, SG, Kaunisto, K, Ihalainen, P, Masood, MT, Österbacka, R, Lund, P & Lemmetyinen, H 2017, 'Influence of TiO2 compact layer precursor on the performance of perovskite solar cells', Organic Electronics, vol. 41, pp. 287-293. https://doi.org/10.1016/j.orgel.2016.11.017

Influence of TiO2 compact layer precursor on the performance of perovskite solar cells. / Vivo, Paola (Corresponding Author); Ojanperä, Anniina; Smått, Jan-Henrik; Sandén, Simon; Hashmi, Syed Ghufran; Kaunisto, Kimmo; Ihalainen, Petri; Masood, Muhammad Talha; Österbacka, Ronald; Lund, Peter; Lemmetyinen, Helge.

In: Organic Electronics, Vol. 41, 01.02.2017, p. 287-293.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Hashmi, Syed Ghufran

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AU - Ihalainen, Petri

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AU - Lemmetyinen, Helge

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