期刊
NATURE PHOTONICS
卷 8, 期 2, 页码 133-138出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nphoton.2013.342
关键词
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资金
- Natural Sciences and Engineering Research Council of Canada
- University of Saskatchewan
- Canada Research Chair Program
Organic-inorganic hybrid solar cells that combine a mesoporous scaffold, a perovskite light absorber and an organic hole transporter have emerged at the forefront of solution-processable photovoltaic devices; however, they require processing temperatures of up to 500 degrees C to sinter the mesoporous metal-oxide support. Here, we report the use of a thin film of ZnO nanoparticles as an electron-transport layer in CH(3)NH(3)Pbl(3)-based solar cells; in contrast to mesoporous TiO2, the ZnO layer is both substantially thinner and requires no sintering. We took advantage of these facts to prepare flexible solar cells with power-conversion efficiencies in excess of 10%. The use of ZnO also results in improvements to device performance for cells prepared on rigid substrates. Solar cells based on this design exhibit power-conversion efficiencies as high as 15.7% when measured under AM1.5G illumination, which makes them some of the highest-performing perovskite solar cells reported to date.
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