1 Ocak 2019 Dergi makalesi Açık Erişim

Xiang, Wanchun; Wang, Zaiwei; Kubicki, Dominik J.; Tress, Wolfgang; Luo, Jingshan; Prochowicz, Daniel; Akin, Seckin; Emsley, Lyndon; Zhou, Jiangtao; Dietler, Giovanni; Graetzel, Michael; Hagfeldt, Anders

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        "name": "Xiang, Wanchun"
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        "affiliation": "Ecole Polytech Fed Lausanne, Inst Chem Sci Engn, Lab Photomol Sci, CH-1015 Lausanne, Switzerland", 
        "name": "Wang, Zaiwei"
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      {
        "name": "Kubicki, Dominik J."
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        "affiliation": "Ecole Polytech Fed Lausanne, Inst Chem Sci Engn, Lab Photomol Sci, CH-1015 Lausanne, Switzerland", 
        "name": "Tress, Wolfgang"
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      {
        "name": "Luo, Jingshan"
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      {
        "affiliation": "Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland", 
        "name": "Prochowicz, Daniel"
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      {
        "affiliation": "Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland", 
        "name": "Akin, Seckin"
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      {
        "affiliation": "Ecole Polytech Fed Lausanne, Lab Magnet Resonance, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland", 
        "name": "Emsley, Lyndon"
      }, 
      {
        "affiliation": "Ecole Polytech Fed Lausanne, Lab Phys Living Matter LPMV, Inst Phys, CH-1015 Lausanne, Switzerland", 
        "name": "Zhou, Jiangtao"
      }, 
      {
        "affiliation": "Ecole Polytech Fed Lausanne, Lab Phys Living Matter LPMV, Inst Phys, CH-1015 Lausanne, Switzerland", 
        "name": "Dietler, Giovanni"
      }, 
      {
        "affiliation": "Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland", 
        "name": "Graetzel, Michael"
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      {
        "affiliation": "Ecole Polytech Fed Lausanne, Inst Chem Sci Engn, Lab Photomol Sci, CH-1015 Lausanne, Switzerland", 
        "name": "Hagfeldt, Anders"
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    ], 
    "description": "All-inorganic perovskite films hold promise for improving the stability of perovskite solar cells (PSCs). However, the 3D alpha phase of narrow-bandgap inorganic perovskites is thermodynamically unstable at room temperature, limiting the development of high-performance inorganic PSCs. Here, we show that europium doping of CsPbI2Br stabilizes the alpha phase of this inorganic perovskite at room temperature. We rationalize it by using solid-state nuclear magnetic resonance and high-angle annular dark-field scanning transmission electron microscopy, which show that europium is incorporated into the perovskite lattice. We demonstrate amaximum power-conversion efficiency of 13.71% for an inorganic PSC with the CsPb0.95Eu0.05I2Br perovskite and alpha stable power output of 13.34%. Using electroluminescence we show that incorporation of europium reduces non-radiative recombination, resulting in high open-circuit voltage of 1.27 V. The devices retain 93% of the initial efficiency after 370 hr under 100 mW cm(-2) continuous white light illumination under maximum-power point-tracking measurement.", 
    "doi": "10.1016/j.joule.2018.10.008", 
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    "journal": {
      "issue": "1", 
      "pages": "205-214", 
      "title": "JOULE", 
      "volume": "3"
    }, 
    "license": {
      "id": "cc-by"
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    "publication_date": "2019-01-01", 
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    "title": "Europium-Doped CsPbI2Br for Stable and Highly Efficient Inorganic Perovskite Solar Cells"
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