Dual function of a high-contrast hydrophobic-hydrophilic coating for enhanced stability of perovskite solar cells in extremely humid environments
In spite of a continuous increase in their power conversion efficiency （PCE） and an economically viable fabrication process,organic-inorganic perovskite solar cells （PSCs） pose a significant problem when used in practical applications：They show fast degradation of the PCE when exposed to very humid...
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| creator | Yoo, Jin Sun Han, Gill Sang Lee, Seongha Kim, Min Cheol Choi, Mansoo Jung, Hyun Suk Lee, Jung-Kun |
| description | In spite of a continuous increase in their power conversion efficiency （PCE） and an economically viable fabrication process,organic-inorganic perovskite solar cells （PSCs） pose a significant problem when used in practical applications：They show fast degradation of the PCE when exposed to very humid environments.In this study,the stability of PSCs under very humid conditions is greatly enhanced by coating the surface of the PSC devices with a multi-layer film consisting of ultrahydrophobic and relatively hydrophilic layers.A hydrophobic composite of poly（methyl methacrylate） （PMMA）,polyurethane （PU）,and SiO2 nanoparticles successfully retards the water molecules from very humid surroundings.Also,the hydrophilic layer with moderately PMMA captures the residual moisture within the perovskite layer;subsequently,the perovskite layer recovers.This dual function of the coating film keeps the PCE of PSCs at 17.3% for 180 min when exposed to over 95% humidity. |
| doi_str_mv | 10.1007/s12274-017-1603-6 |
| format | Article |
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methacrylate） （PMMA）,polyurethane （PU）,and SiO2 nanoparticles successfully retards the water molecules from very humid surroundings.Also,the hydrophilic layer with moderately PMMA captures the residual moisture within the perovskite layer;subsequently,the perovskite layer recovers.This dual function of the coating film keeps the PCE of PSCs at 17.3% for 180 min when exposed to over 95% humidity.</description><subject>Atomic/Molecular Structure and Spectra</subject><subject>Biomedicine</subject><subject>Biotechnology</subject><subject>Chemistry and Materials Science</subject><subject>Coating</subject><subject>Condensed Matter Physics</subject><subject>Economic conditions</subject><subject>Energy conversion efficiency</subject><subject>Fabrication</subject><subject>Hydrophobicity</subject><subject>Materials Science</subject><subject>Nanoparticles</subject><subject>Nanotechnology</subject><subject>Photovoltaic cells</subject><subject>Polymethyl 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consisting of ultrahydrophobic and relatively hydrophilic layers.A hydrophobic composite of poly（methyl methacrylate） （PMMA）,polyurethane （PU）,and SiO2 nanoparticles successfully retards the water molecules from very humid surroundings.Also,the hydrophilic layer with moderately PMMA captures the residual moisture within the perovskite layer;subsequently,the perovskite layer recovers.This dual function of the coating film keeps the PCE of PSCs at 17.3% for 180 min when exposed to over 95% humidity.</abstract><cop>Beijing</cop><pub>Tsinghua University Press</pub><doi>10.1007/s12274-017-1603-6</doi><tpages>11</tpages></addata></record> |
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| identifier | ISSN: 1998-0124 |
| ispartof | Nano research, 2017-11, Vol.10 (11), p.3885-3895 |
| issn | 1998-0124 1998-0000 |
| language | eng |
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| subjects | Atomic/Molecular Structure and Spectra Biomedicine Biotechnology Chemistry and Materials Science Coating Condensed Matter Physics Economic conditions Energy conversion efficiency Fabrication Hydrophobicity Materials Science Nanoparticles Nanotechnology Photovoltaic cells Polymethyl methacrylate Polymethylmethacrylate Polyurethane Polyurethane resins Research Article Silicon dioxide Solar cells Stability Water chemistry |
| title | Dual function of a high-contrast hydrophobic-hydrophilic coating for enhanced stability of perovskite solar cells in extremely humid environments |
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