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Multimodal host-guest complexation for efficient and stable perovskite photovoltaics

Zhang, Hong (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
Eickemeyer, Felix Thomas (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
Zhou, Zhiwen (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
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Mladenovic, Marko (författare)
Ecole Polytech Fed Lausanne, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland
Jahanbakhshi, Farzaneh (författare)
Ecole Polytech Fed Lausanne, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland
Merten, Lena (författare)
Univ Tubingen, Inst Angew Phys, Tubingen, Germany
Hinderhofer, Alexander (författare)
Univ Tubingen, Inst Angew Phys, Tubingen, Germany
Hope, Michael A. (författare)
Ecole Polytech Fed Lausanne, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland
Ouellette, Olivier (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
Mishra, Aditya (författare)
Ecole Polytech Fed Lausanne, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland
Ahlawat, Paramvir (författare)
Ecole Polytech Fed Lausanne, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland
Ren, Dan (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
Su, Tzu-Sen (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
Krishna, Anurag (författare)
Ecole Polytech Fed Lausanne, Lab Photomol Sci, Inst Chem Sci & Engn, Lausanne, Switzerland
Wang, Zaiwei (författare)
Ecole Polytech Fed Lausanne, Lab Photomol Sci, Inst Chem Sci & Engn, Lausanne, Switzerland
Dong, Zhaowen (författare)
Ecole Polytech Fed Lausanne, Lab Supramol Chem, Inst Chem Sci & Engn, Lausanne, Switzerland
Guo, Jinming (författare)
Ecole Polytech Fed Lausanne, Lab Biol Geochem, Lausanne, Switzerland
Zakeeruddin, Shaik M. (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
Schreiber, Frank (författare)
Univ Tubingen, Inst Angew Phys, Tubingen, Germany
Hagfeldt, Anders (författare)
Uppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne, Lab Photomol Sci, Inst Chem Sci & Engn, Lausanne, Switzerland
Emsley, Lyndon (författare)
Ecole Polytech Fed Lausanne, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland
Rothlisberger, Ursula (författare)
Ecole Polytech Fed Lausanne, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland
Milic, Jovana, V (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland.;Univ Fribourg Switzerland, Adolphe Merkle Inst, Fribourg, Switzerland
Grätzel, Michael (författare)
Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
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 (creator_code:org_t)
2021-06-07
2021
Engelska.
Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 12:1
Relaterad länk:
https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
https://www.nature.c...
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Formamidinium lead iodide perovskites are promising light-harvesting materials, yet stabilizing them under operating conditions without compromising optimal optoelectronic properties remains challenging. We report a multimodal host-guest complexation strategy to overcome this challenge using a crown ether, dibenzo-21-crown-7, which acts as a vehicle that assembles at the interface and delivers Cs+ ions into the interior while modulating the material. This provides a local gradient of doping at the nanoscale that assists in photoinduced charge separation while passivating surface and bulk defects, stabilizing the perovskite phase through a synergistic effect of the host, guest, and host-guest complex. The resulting solar cells show power conversion efficiencies exceeding 24% and enhanced operational stability, maintaining over 95% of their performance without encapsulation for 500h under continuous operation. Moreover, the host contributes to binding lead ions, reducing their environmental impact. This supramolecular strategy illustrates the broad implications of host-guest chemistry in photovoltaics. It remains a challenge to achieve a balance between performance and stability, as well as addressing the environmental impact of perovskite solar cells. Here, the authors propose a multimodal host-guest complexation strategy enabling these shortcomings to be addressed simultaneously.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

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