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Long Carrier Diffusion Length and Slow Hot Carrier Cooling in Thin Film Mixed Halide Perovskite
descriptionPublicationkeyboard_double_arrow_right Article , Journal 2020Publisher:Institute of Electrical and Electronics Engineers (IEEE)
Authors: Kamlesh Kumar Chauhan; Sayan Prodhan; Dibyendu Ghosh; Pradney Waghale; +3 Authors
Kamlesh Kumar Chauhan; Sayan Prodhan; Dibyendu Ghosh; Pradney Waghale; Sayan Bhattacharyya; Pranab Kumar Dutta; Prasanta Kumar Datta;
doi: 10.1109/jphotov.2020.2976032
doi: 10.1109/jphotov.2020.2976032
The long diffusion length is the key to achieve remarkable power conversion efficiency and delayed hot carriers (HCs) relaxation helps to overcome the theoretical Shockley–Queisser limit in perovskite photovoltaic. Here, we investigate the incident photon density dependent bandedge bleaching and HCs dynamics in thin film methyl-ammonium lead iodide-chloride (mixed halide) perovskite using transient absorption spectroscopy. The bandedge bleaching dynamics shows the radiative recombination rate constant of the order of ∼10−11 cm−3 s−1 results in the maximum carrier diffusion length of the order of ∼10 μm. The HCs dynamics indicates cooling occurs by longitudinal-optical (LO) phonon emission in early ∼800 fs via Frohlich electron–phonon interaction at low-carrier concentration (∼1.7 × 1018 cm−3) and an efficient phonon bottleneck due to the delayed LO-phonon decay by two order of magnitude about ∼11 ± 1.3 ps at high carrier density (∼1019 cm−3). Our finding shows the potential of thin film mixed halide perovskite in HCs photovoltaic and light emission application.
IEEE Journal of Phot...arrow_drop_down
IEEE Journal of Photovoltaics
Article . 2020 . Peer-reviewed
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IEEE Journal of Phot...arrow_drop_down
IEEE Journal of Photovoltaics
Article . 2020 . Peer-reviewed
License: IEEE Copyright
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IEEE Journal of Photovoltaics
Journal
Data sources: Microsoft Academic Graph
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Long Carrier Diffusion Length and Slow Hot Carrier Cooling in Thin Film Mixed Halide Perovskite
descriptionPublicationkeyboard_double_arrow_right Article , Journal 2020Publisher:Institute of Electrical and Electronics Engineers (IEEE)
Authors: Kamlesh Kumar Chauhan; Sayan Prodhan; Dibyendu Ghosh; Pradney Waghale; +3 Authors
Kamlesh Kumar Chauhan; Sayan Prodhan; Dibyendu Ghosh; Pradney Waghale; Sayan Bhattacharyya; Pranab Kumar Dutta; Prasanta Kumar Datta;
doi: 10.1109/jphotov.2020.2976032
doi: 10.1109/jphotov.2020.2976032
The long diffusion length is the key to achieve remarkable power conversion efficiency and delayed hot carriers (HCs) relaxation helps to overcome the theoretical Shockley–Queisser limit in perovskite photovoltaic. Here, we investigate the incident photon density dependent bandedge bleaching and HCs dynamics in thin film methyl-ammonium lead iodide-chloride (mixed halide) perovskite using transient absorption spectroscopy. The bandedge bleaching dynamics shows the radiative recombination rate constant of the order of ∼10−11 cm−3 s−1 results in the maximum carrier diffusion length of the order of ∼10 μm. The HCs dynamics indicates cooling occurs by longitudinal-optical (LO) phonon emission in early ∼800 fs via Frohlich electron–phonon interaction at low-carrier concentration (∼1.7 × 1018 cm−3) and an efficient phonon bottleneck due to the delayed LO-phonon decay by two order of magnitude about ∼11 ± 1.3 ps at high carrier density (∼1019 cm−3). Our finding shows the potential of thin film mixed halide perovskite in HCs photovoltaic and light emission application.
IEEE Journal of Phot...arrow_drop_down
IEEE Journal of Photovoltaics
Article . 2020 . Peer-reviewed
License: IEEE Copyright
Data sources: Crossref
IEEE Journal of Photovoltaics
Journal
Data sources: Microsoft Academic Graph
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shareshareShare
citeCite
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Please grant OpenAIRE to access and update your ORCID works.
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14
citations 14
popularity Top 10%
influence Average
impulse Top 10%
Powered by BIP!
more_vert
IEEE Journal of Phot...arrow_drop_down
IEEE Journal of Photovoltaics
Article . 2020 . Peer-reviewed
License: IEEE Copyright
Data sources: Crossref
IEEE Journal of Photovoltaics
Journal
Data sources: Microsoft Academic Graph
linkLink to
shareshareShare
citeCite
addClaim
Please grant OpenAIRE to access and update your ORCID works.
This Research product is the result of merged Research products in OpenAIRE.

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This Research product is the result of merged Research products in OpenAIRE.

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Long Carrier Diffusion Length and Slow Hot Carrier Cooling in Thin Film Mixed Halide Perovskite

Long Carrier Diffusion Length and Slow Hot Carrier Cooling in Thin Film Mixed Halide Perovskite

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Long Carrier Diffusion Length and Slow Hot Carrier Cooling in Thin Film Mixed Halide Perovskite