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

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

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

37 Citeringar (Scopus)

Sammanfattning

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.

Originalspråk	Odefinierat/okänt
Sidor (från-till)	287–293
Tidskrift	Organic Electronics
Volym	41
DOI	https://doi.org/10.1016/j.orgel.2016.11.017
Status	Publicerad - 2017
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

Åtkomst av dokument

10.1016/j.orgel.2016.11.017

http://www.sciencedirect.com/science/article/pii/S1566119916304980

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title = "Influence of TiO2 compact layer precursor on the performance of perovskite solar cells",

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 - Sandén, Simon

AU - Ghufran Hashmid, Syed

AU - Kaunisto, Kimmo

AU - Ihalainen, Petri

AU - Masood, Muhammad Talha

AU - Österbacka, Ronald

AU - Lund, Peter D.

AU - Lemmetyinen, Helge

N1 - fys. fyke

PY - 2017

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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.

U2 - 10.1016/j.orgel.2016.11.017

DO - 10.1016/j.orgel.2016.11.017

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SN - 1566-1199

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JO - Organic Electronics

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