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Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells

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Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells. / Möllmann, Alexander; Gedamu, Dawit; Vivo, Paola; Frohnhoven, Robert; Stadler, Daniel; Fischer, Thomas; Ka, Ibrahima; Steinhorst, Maximilian; Nechache, Riad; Rosei, Federico; Cloutier, Sylvain G.; Kirchartz, Thomas; Mathur, Sanjay.

In: Advanced Engineering Materials, Vol. 21, No. 4, 1801196, 01.2019.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Möllmann, A, Gedamu, D, Vivo, P, Frohnhoven, R, Stadler, D, Fischer, T, Ka, I, Steinhorst, M, Nechache, R, Rosei, F, Cloutier, SG, Kirchartz, T & Mathur, S 2019, 'Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells' Advanced Engineering Materials, vol. 21, no. 4, 1801196. https://doi.org/10.1002/adem.201801196

APA

Möllmann, A., Gedamu, D., Vivo, P., Frohnhoven, R., Stadler, D., Fischer, T., ... Mathur, S. (2019). Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells. Advanced Engineering Materials, 21(4), [1801196]. https://doi.org/10.1002/adem.201801196

Vancouver

Möllmann A, Gedamu D, Vivo P, Frohnhoven R, Stadler D, Fischer T et al. Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells. Advanced Engineering Materials. 2019 Jan;21(4). 1801196. https://doi.org/10.1002/adem.201801196

Author

Möllmann, Alexander ; Gedamu, Dawit ; Vivo, Paola ; Frohnhoven, Robert ; Stadler, Daniel ; Fischer, Thomas ; Ka, Ibrahima ; Steinhorst, Maximilian ; Nechache, Riad ; Rosei, Federico ; Cloutier, Sylvain G. ; Kirchartz, Thomas ; Mathur, Sanjay. / Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells. In: Advanced Engineering Materials. 2019 ; Vol. 21, No. 4.

Bibtex - Download

@article{93f2266ba9d04bd8b9160a69cd37b490,
title = "Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells",
abstract = "Transparent and pinhole free hole‐blocking layers such as TiO2 grown at low temperatures and by scalable processes are necessary to reduce production costs and thus enabling commercialization of perovskite solar cells. Here, the authors compare the transport properties of TiO2 compact layers grown by spray pyrolysis from commonly used titanium diisopropoxide bisacetylacetonate ([Ti(OPri)2(acac)2]) precursor to films grown by spray pyrolysis of TiCl4. Spray pyrolysis provides insights into the interdependence of precursor chemistry and electron transport properties of TiO2 films and their influence on the performance of the perovskite solar cells. X‐ray diffraction and X‐ray photoelectron spectroscopy data confirm the chemical and structural composition of the obtained films. Thin film deposition at lower temperature (150 °C) are conducted using TiCl4 to evaluate the influence of crystal growth and topography by scanning electron microscopy and atomic force microscopy as well as thickness (profilometry) and transmittance (UV/Vis spectroscopy) on the power conversion efficiency of perovskite solar cells. TiO2 compact layers grown from TiCl4 enhance the power conversion efficiency by acting as superior electron transfer medium and by reducing hysteresis behavior, when compared to films grown using titanium diisopropoxide bisacetylacetonate. UV/Vis spectroscopy and external quantum efficiency studies reveal the correlation of transmittance on the power conversion efficiency.",
keywords = "perovskite solar cells, compact layer, spray pyrolysis",
author = "Alexander M{\"o}llmann and Dawit Gedamu and Paola Vivo and Robert Frohnhoven and Daniel Stadler and Thomas Fischer and Ibrahima Ka and Maximilian Steinhorst and Riad Nechache and Federico Rosei and Cloutier, {Sylvain G.} and Thomas Kirchartz and Sanjay Mathur",
year = "2019",
month = "1",
doi = "10.1002/adem.201801196",
language = "English",
volume = "21",
journal = "Advanced Engineering Materials",
issn = "1438-1656",
publisher = "Wiley-VCH Verlag",
number = "4",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Highly compact TiO2 films by spray pyrolysis and application in perovskite solar cells

AU - Möllmann, Alexander

AU - Gedamu, Dawit

AU - Vivo, Paola

AU - Frohnhoven, Robert

AU - Stadler, Daniel

AU - Fischer, Thomas

AU - Ka, Ibrahima

AU - Steinhorst, Maximilian

AU - Nechache, Riad

AU - Rosei, Federico

AU - Cloutier, Sylvain G.

AU - Kirchartz, Thomas

AU - Mathur, Sanjay

PY - 2019/1

Y1 - 2019/1

N2 - Transparent and pinhole free hole‐blocking layers such as TiO2 grown at low temperatures and by scalable processes are necessary to reduce production costs and thus enabling commercialization of perovskite solar cells. Here, the authors compare the transport properties of TiO2 compact layers grown by spray pyrolysis from commonly used titanium diisopropoxide bisacetylacetonate ([Ti(OPri)2(acac)2]) precursor to films grown by spray pyrolysis of TiCl4. Spray pyrolysis provides insights into the interdependence of precursor chemistry and electron transport properties of TiO2 films and their influence on the performance of the perovskite solar cells. X‐ray diffraction and X‐ray photoelectron spectroscopy data confirm the chemical and structural composition of the obtained films. Thin film deposition at lower temperature (150 °C) are conducted using TiCl4 to evaluate the influence of crystal growth and topography by scanning electron microscopy and atomic force microscopy as well as thickness (profilometry) and transmittance (UV/Vis spectroscopy) on the power conversion efficiency of perovskite solar cells. TiO2 compact layers grown from TiCl4 enhance the power conversion efficiency by acting as superior electron transfer medium and by reducing hysteresis behavior, when compared to films grown using titanium diisopropoxide bisacetylacetonate. UV/Vis spectroscopy and external quantum efficiency studies reveal the correlation of transmittance on the power conversion efficiency.

AB - Transparent and pinhole free hole‐blocking layers such as TiO2 grown at low temperatures and by scalable processes are necessary to reduce production costs and thus enabling commercialization of perovskite solar cells. Here, the authors compare the transport properties of TiO2 compact layers grown by spray pyrolysis from commonly used titanium diisopropoxide bisacetylacetonate ([Ti(OPri)2(acac)2]) precursor to films grown by spray pyrolysis of TiCl4. Spray pyrolysis provides insights into the interdependence of precursor chemistry and electron transport properties of TiO2 films and their influence on the performance of the perovskite solar cells. X‐ray diffraction and X‐ray photoelectron spectroscopy data confirm the chemical and structural composition of the obtained films. Thin film deposition at lower temperature (150 °C) are conducted using TiCl4 to evaluate the influence of crystal growth and topography by scanning electron microscopy and atomic force microscopy as well as thickness (profilometry) and transmittance (UV/Vis spectroscopy) on the power conversion efficiency of perovskite solar cells. TiO2 compact layers grown from TiCl4 enhance the power conversion efficiency by acting as superior electron transfer medium and by reducing hysteresis behavior, when compared to films grown using titanium diisopropoxide bisacetylacetonate. UV/Vis spectroscopy and external quantum efficiency studies reveal the correlation of transmittance on the power conversion efficiency.

KW - perovskite solar cells

KW - compact layer

KW - spray pyrolysis

U2 - 10.1002/adem.201801196

DO - 10.1002/adem.201801196

M3 - Article

VL - 21

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

SN - 1438-1656

IS - 4

M1 - 1801196

ER -