Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite

Sibel Y. Leblebici, Linn Leppert, Yanbo Li, Sebastian E. Reyes-Lillo, Sebastian Wickenburg, Ed Wong, Jiye Lee, Mauro Melli, Dominik Ziegler, Daniel K. Angell, D. Frank Ogletree, Paul D. Ashby, Francesca M. Toma, Jeffrey B. Neaton, Ian D. Sharp, Alexander Weber-Bargioni

Resultado de la investigación: Article

145 Citas (Scopus)

Resumen

Photovoltaic devices based on hybrid perovskite materials have exceeded 22% efficiency due to high charge-carrier mobilities and lifetimes. Properties such as photocurrent generation and open-circuit voltage are influenced by the microscopic structure and orientation of the perovskite crystals, but are difficult to quantify on the intra-grain length scale and are often treated as homogeneous within the active layer. Here, we map the local short-circuit photocurrent, open-circuit photovoltage, and dark drift current in state-of-the-art methylammonium lead iodide solar cells using photoconductive atomic force microscopy. We find, within individual grains, spatially correlated heterogeneity in short-circuit current and open-circuit voltage up to 0.6 V. These variations are related to different crystal facets and have a direct impact on the macroscopic power conversion efficiency. We attribute this heterogeneity to a facet-dependent density of trap states. These results imply that controlling crystal grain and facet orientation will enable a systematic optimization of polycrystalline and single-crystal devices for photovoltaic and lighting applications.

Idioma originalEnglish
Número de artículo16093
PublicaciónNature Energy
Volumen1
N.º8
DOI
EstadoPublished - 4 jul 2016

Huella dactilar

Perovskite
Open circuit voltage
Photocurrents
Crystal orientation
Short circuit currents
Crystals
Carrier lifetime
Carrier mobility
Iodides
Charge carriers
Conversion efficiency
Atomic force microscopy
Solar cells
Lighting
Single crystals
Networks (circuits)
perovskite
methylamine

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology

Citar esto

Leblebici, S. Y., Leppert, L., Li, Y., Reyes-Lillo, S. E., Wickenburg, S., Wong, E., ... Weber-Bargioni, A. (2016). Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite. Nature Energy, 1(8), [16093]. https://doi.org/10.1038/nenergy.2016.93
Leblebici, Sibel Y. ; Leppert, Linn ; Li, Yanbo ; Reyes-Lillo, Sebastian E. ; Wickenburg, Sebastian ; Wong, Ed ; Lee, Jiye ; Melli, Mauro ; Ziegler, Dominik ; Angell, Daniel K. ; Ogletree, D. Frank ; Ashby, Paul D. ; Toma, Francesca M. ; Neaton, Jeffrey B. ; Sharp, Ian D. ; Weber-Bargioni, Alexander. / Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite. En: Nature Energy. 2016 ; Vol. 1, N.º 8.
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abstract = "Photovoltaic devices based on hybrid perovskite materials have exceeded 22{\%} efficiency due to high charge-carrier mobilities and lifetimes. Properties such as photocurrent generation and open-circuit voltage are influenced by the microscopic structure and orientation of the perovskite crystals, but are difficult to quantify on the intra-grain length scale and are often treated as homogeneous within the active layer. Here, we map the local short-circuit photocurrent, open-circuit photovoltage, and dark drift current in state-of-the-art methylammonium lead iodide solar cells using photoconductive atomic force microscopy. We find, within individual grains, spatially correlated heterogeneity in short-circuit current and open-circuit voltage up to 0.6 V. These variations are related to different crystal facets and have a direct impact on the macroscopic power conversion efficiency. We attribute this heterogeneity to a facet-dependent density of trap states. These results imply that controlling crystal grain and facet orientation will enable a systematic optimization of polycrystalline and single-crystal devices for photovoltaic and lighting applications.",
author = "Leblebici, {Sibel Y.} and Linn Leppert and Yanbo Li and Reyes-Lillo, {Sebastian E.} and Sebastian Wickenburg and Ed Wong and Jiye Lee and Mauro Melli and Dominik Ziegler and Angell, {Daniel K.} and Ogletree, {D. Frank} and Ashby, {Paul D.} and Toma, {Francesca M.} and Neaton, {Jeffrey B.} and Sharp, {Ian D.} and Alexander Weber-Bargioni",
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Leblebici, SY, Leppert, L, Li, Y, Reyes-Lillo, SE, Wickenburg, S, Wong, E, Lee, J, Melli, M, Ziegler, D, Angell, DK, Ogletree, DF, Ashby, PD, Toma, FM, Neaton, JB, Sharp, ID & Weber-Bargioni, A 2016, 'Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite', Nature Energy, vol. 1, n.º 8, 16093. https://doi.org/10.1038/nenergy.2016.93

Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite. / Leblebici, Sibel Y.; Leppert, Linn; Li, Yanbo; Reyes-Lillo, Sebastian E.; Wickenburg, Sebastian; Wong, Ed; Lee, Jiye; Melli, Mauro; Ziegler, Dominik; Angell, Daniel K.; Ogletree, D. Frank; Ashby, Paul D.; Toma, Francesca M.; Neaton, Jeffrey B.; Sharp, Ian D.; Weber-Bargioni, Alexander.

En: Nature Energy, Vol. 1, N.º 8, 16093, 04.07.2016.

Resultado de la investigación: Article

TY - JOUR

T1 - Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite

AU - Leblebici, Sibel Y.

AU - Leppert, Linn

AU - Li, Yanbo

AU - Reyes-Lillo, Sebastian E.

AU - Wickenburg, Sebastian

AU - Wong, Ed

AU - Lee, Jiye

AU - Melli, Mauro

AU - Ziegler, Dominik

AU - Angell, Daniel K.

AU - Ogletree, D. Frank

AU - Ashby, Paul D.

AU - Toma, Francesca M.

AU - Neaton, Jeffrey B.

AU - Sharp, Ian D.

AU - Weber-Bargioni, Alexander

PY - 2016/7/4

Y1 - 2016/7/4

N2 - Photovoltaic devices based on hybrid perovskite materials have exceeded 22% efficiency due to high charge-carrier mobilities and lifetimes. Properties such as photocurrent generation and open-circuit voltage are influenced by the microscopic structure and orientation of the perovskite crystals, but are difficult to quantify on the intra-grain length scale and are often treated as homogeneous within the active layer. Here, we map the local short-circuit photocurrent, open-circuit photovoltage, and dark drift current in state-of-the-art methylammonium lead iodide solar cells using photoconductive atomic force microscopy. We find, within individual grains, spatially correlated heterogeneity in short-circuit current and open-circuit voltage up to 0.6 V. These variations are related to different crystal facets and have a direct impact on the macroscopic power conversion efficiency. We attribute this heterogeneity to a facet-dependent density of trap states. These results imply that controlling crystal grain and facet orientation will enable a systematic optimization of polycrystalline and single-crystal devices for photovoltaic and lighting applications.

AB - Photovoltaic devices based on hybrid perovskite materials have exceeded 22% efficiency due to high charge-carrier mobilities and lifetimes. Properties such as photocurrent generation and open-circuit voltage are influenced by the microscopic structure and orientation of the perovskite crystals, but are difficult to quantify on the intra-grain length scale and are often treated as homogeneous within the active layer. Here, we map the local short-circuit photocurrent, open-circuit photovoltage, and dark drift current in state-of-the-art methylammonium lead iodide solar cells using photoconductive atomic force microscopy. We find, within individual grains, spatially correlated heterogeneity in short-circuit current and open-circuit voltage up to 0.6 V. These variations are related to different crystal facets and have a direct impact on the macroscopic power conversion efficiency. We attribute this heterogeneity to a facet-dependent density of trap states. These results imply that controlling crystal grain and facet orientation will enable a systematic optimization of polycrystalline and single-crystal devices for photovoltaic and lighting applications.

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U2 - 10.1038/nenergy.2016.93

DO - 10.1038/nenergy.2016.93

M3 - Article

VL - 1

JO - Nature Energy

JF - Nature Energy

SN - 2058-7546

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