期刊
ADVANCED ENERGY MATERIALS
卷 6, 期 20, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201601055
关键词
1D nanostructures; AAO; anodized aluminum oxide; organic-inorganic hybrid perovskite solar cells; semitransparent solar cells
类别
资金
- National Research Foundation of Korea (NRF) - Korea Government (MSIP) [2012R1A3A2026417]
- National Research Council of Science & Technology (NST), Republic of Korea [SI1602] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2012R1A3A2026417] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Semitransparent solar cells have attracted significant attention for practical applications, such as windows in buildings and automobiles. Here, semitransparent, highly efficient, 1D nanostructured perovskite solar cells are demonstrated employing anodized aluminum oxide (AAO) as a scaffold layer. The parallel nanopillars in the perovskite layer enable construction of haze-free semitransparent devices without any hysteresis behavior. By controlling the pore size in the AAO, the volume occupied by the perovskite layer can be precisely varied, and the color neutrality of the resulting devices can be achieved. With the incorporation of a transparent cathodic electrode (indium tin oxide) with a buffer layer (MoOx), a highly efficient semitransparent nanopillared perovskite solar cell is achievable with a power-conversion efficiency of 9.6% (7.5%) and a whole device average visible light transmittance of 33.4% (41.7%). To determine the role of the scaffold layer in improving the photoelectrical properties of the cell, impedance spectroscopy analyses are performed, revealing that the AAO-structured perovskite layer suppresses internal ion diffusion and enables critical improvements in long-term stability under continuous illumination.
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