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Sökning: onr:"swepub:oai:DiVA.org:uu-485465" > Critical Role of Re...

Critical Role of Removing Impurities in Nickel Oxide on High-Efficiency and Long-Term Stability of Inverted Perovskite Solar Cells

Wang, Shuangjie (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Li, Yuke (författare)
Chinese Univ Hong Kong, Dept Dept Chem, Shatin, Hong Kong 999077, Peoples R China.;Chinese Univ Hong Kong, Ctr Sci Modeling & Computat, Shatin, Hong Kong 999077, Peoples R China.
Yang, Jiabao (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
visa fler...
Wang, Tong (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Yang, Bowen (författare)
Uppsala universitet,Fysikalisk kemi
Cao, Qi (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Pu, Xingyu (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Etgar, Lioz (författare)
Hebrew Univ Jerusalem, Casali Ctr Appl Chem, Inst Chem, IL-91904 Jerusalem, Israel.
Han, Jian (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Zhao, Junsong (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Li, Xuanhua (författare)
Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China.
Hagfeldt, Anders (författare)
Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photomol Sci, Sch Basic Sci, CH-1015 Lausanne, Switzerland.
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Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710000, Shaanxi, Peoples R China Chinese Univ Hong Kong, Dept Dept Chem, Shatin, Hong Kong 999077, Peoples R China.;Chinese Univ Hong Kong, Ctr Sci Modeling & Computat, Shatin, Hong Kong 999077, Peoples R China. (creator_code:org_t)
2022-03-04
2022
Engelska.
Ingår i: Angewandte Chemie International Edition. - : John Wiley & Sons. - 1433-7851 .- 1521-3773. ; 61:18
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • The performance enhancement of inverted perovskite solar cells applying nickel oxide (NiOx) as the hole transport layer (HTL) has been limited by impurity ions (such as nitrate ions). Herein, we have proposed a strategy to obtain high-quality NiOx nanoparticles via an ionic liquid-assisted synthesis method (NiOx-IL). Experimental and theoretical results illustrate that the cation of the ionic liquid can inhibit the adsorption of impurity ions on nickel hydroxide through a strong hydrogen bond and low adsorption energy, thereby obtaining NiOx-IL HTL with high conductivity and strong hole-extraction ability. Importantly, the removal of impurity ions can effectively suppress the redox reaction between the NiOx film and the perovskite film, thus slowing down the deterioration of device performance. Consequently, the modified inverted device shows a striking efficiency exceeding 22.62 %, and superior stability maintaining 92 % efficiency at a maximum power point tracking under one sun illumination for 1000 h.

Ämnesord

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

Nyckelord

Hole Transport Layer
Interfacial Redox Reaction
Nickel Oxide
Perovskite Solar Cells

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