Journal
NANOSCALE
Volume 6, Issue 3, Pages 1675-1679Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr04857h
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Funding
- National Research Foundation (NRF) under the Competitive Research Program (CRP)
- SinBeRISE CREATE program
- National Research Foundation of Korea (NRF)
- Ministry of Science, ICT Future [NRF-2010-0014992]
- National Research Foundation of Korea [2010-0014992] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The good electrical and morphological characteristics of TiO2 nanofibers and the high extinction coefficient of CH3NH3PbI3 perovskite are combined to obtain a solar cell with a power conversion efficiency of 9.8%. The increase of the film thickness dramatically diminishes the performance due to the reduction in porosity of the TiO2 nanofiber framework. The optimum device (similar to 413 nm film thickness) is compared to a planar device, where the latter produces higher V-oc but lower J(sc), and consequently lower efficiency at all measured light intensities.
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