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

Paola Vivo; Anniina Ojanperä; Jan-Henrik Smått; Simon Sánden; Syed Ghufran Hashmi; Kimmo Kaunisto; Petri Ihalainen; Muhammad Talha Masood; Ronald Österbacka; Peter D.  Lund; Helge Lemmetyinen

doi:10.1016/j.orgel.2016.11.017

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

Paola Vivo, Anniina Ojanperä, Jan-Henrik Smått, Simon Sánden, Syed Ghufran Hashmi, Kimmo Kaunisto, Petri Ihalainen, Muhammad Talha Masood, Ronald Österbacka, Peter D. Lund, Helge Lemmetyinen

Tutkimustuotos: Artikkeli › Scientific › vertaisarvioitu

35 Sitaatiot (Scopus)

Abstrakti

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.

Alkuperäiskieli	Englanti
Sivut	287-293
Julkaisu	Organic Electronics
Vuosikerta	41
Varhainen verkossa julkaisun päivämäärä	17 marrask. 2016
DOI - pysyväislinkit	https://doi.org/10.1016/j.orgel.2016.11.017
Tila	Julkaistu - 2017
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1016/j.orgel.2016.11.017

Siteeraa tätä

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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.",

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AU - Vivo, Paola

AU - Ojanperä, Anniina

AU - Smått, Jan-Henrik

AU - Sánden, Simon

AU - Hashmi, Syed Ghufran

AU - Kaunisto, Kimmo

AU - Ihalainen, Petri

AU - Masood, Muhammad Talha

AU - Österbacka, Ronald

AU - Lund, Peter D.

AU - Lemmetyinen, Helge

N1 - EXT="Kaunisto, Kimmo"

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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DO - 10.1016/j.orgel.2016.11.017

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