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Sökning: WFRF:(Stranks Samuel D.) > (2022) > Perovskite Solar Ce...

Perovskite Solar Cells with Carbon-Based Electrodes - Quantification of Losses and Strategies to Overcome Them

Bogachuk, Dmitry (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.
Yang, Bowen (författare)
Uppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne EPFL, Lab Photomol Sci, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland.
Suo, Jiajia (författare)
Uppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne EPFL, Lab Photomol Sci, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland.
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Martineau, David (författare)
Solaronix SA, Rue Ouriette 129, CH-1170 Aubonne, Switzerland.
Verma, Anand (författare)
Solaronix SA, Rue Ouriette 129, CH-1170 Aubonne, Switzerland.
Narbey, Stephanie (författare)
Solaronix SA, Rue Ouriette 129, CH-1170 Aubonne, Switzerland.
Anaya, Miguel (författare)
Univ Cambridge, Cavendish Lab, Dept Phys, JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Dept Chem Engn & Biotechnol, Philippa Fawcett Dr, Cambridge CB3 0AS, England.
Frohna, Kyle (författare)
Univ Cambridge, Cavendish Lab, Dept Phys, JJ Thomson Ave, Cambridge CB3 0HE, England.
Doherty, Tiarnan (författare)
Univ Cambridge, Cavendish Lab, Dept Phys, JJ Thomson Ave, Cambridge CB3 0HE, England.
Mueller, David (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.;Univ Freiburg, Mat Res Ctr FMF, Stefan Meier Str 21, D-79104 Freiburg, Germany.
Herterich, Jan P. (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.;Univ Freiburg, Mat Res Ctr FMF, Stefan Meier Str 21, D-79104 Freiburg, Germany.
Zouhair, Salma (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.;Abdelmalek Essaadi Univ, FSTT, Thin Films & Nanomat Lab, Tangier 90000, Morocco.
Hagfeldt, Anders (författare)
Uppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne EPFL, Lab Photomol Sci, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland.
Stranks, Samuel D. (författare)
Univ Cambridge, Cavendish Lab, Dept Phys, JJ Thomson Ave, Cambridge CB3 0HE, England.;Univ Cambridge, Dept Chem Engn & Biotechnol, Philippa Fawcett Dr, Cambridge CB3 0AS, England.
Wuerfel, Uli (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.;Univ Freiburg, Mat Res Ctr FMF, Stefan Meier Str 21, D-79104 Freiburg, Germany.
Hinsch, Andreas (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.
Wagner, Lukas (författare)
Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany.
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Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany Fysikalisk kemi (creator_code:org_t)
2022-01-30
2022
Engelska.
Ingår i: Advanced Energy Materials. - : John Wiley & Sons. - 1614-6832 .- 1614-6840. ; 12:10
Relaterad länk:
https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
https://onlinelibrar...
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Carbon-based electrodes represent a promising approach to improve stability and up-scalability of perovskite photovoltaics. The temperature at which these contacts are processed defines the absorber grain size of the perovskite solar cell: in cells with low-temperature carbon-based electrodes (L-CPSCs), layer-by-layer deposition is possible, allowing perovskite crystals to be large (>100 nm), while in cells with high-temperature carbon-based contacts (H-CPSCs), crystals are constrained to 10-20 nm in size. To enhance the power conversion efficiency of these devices, the main loss mechanisms are identified for both systems. Measurements of charge carrier lifetime, quasi-Fermi level splitting (QFLS) and light-intensity-dependent behavior, supported by numerical simulations, clearly demonstrate that H-CPSCs strongly suffer from non-radiative losses in the perovskite absorber, primarily due to numerous grain boundaries. In contrast, large crystals of L-CPSCs provide a long carrier lifetime (1.8 mu s) and exceptionally high QFLS of 1.21 eV for an absorber bandgap of 1.6 eV. These favorable characteristics explain the remarkable open-circuit voltage of over 1.1 V in hole-selective layer-free L-CPSCs. However, the low photon absorption and poor charge transport in these cells limit their potential. Finally, effective strategies are provided to reduce non-radiative losses in H-CPSCs, transport losses in L-CPSCs, and to improve photon management in both cell types.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Energiteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Energy Engineering (hsv//eng)

Nyckelord

carbon-based electrodes
HTL-free
perovskites
photovoltaics
recombination

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