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Papers on “photovoltaic solar cell efficiency perovskite”

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  1. Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells

    Akihiro Kojima, Kenjiro Teshima, Yasuo Shirai, et al. · 2009 · Journal of the American Chemical Society · 23,007 cites

    Two organolead halide perovskite nanocrystals, CH(3)NH(3)PbBr(3) and CH(3)NH(3)PbI(3), were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells. When self-assembled on mesoporous TiO(2) films, the nanocrystalline perovskites exhibit strong band-gap absorptions as semiconductors. The CH(3)NH(3)PbI(3)-based photocell with spectral sensitivity of up to 800 nm yielded a solar energy conversion efficiency of 3.8%. The CH(3)NH(3)PbBr(3)-based cell showed a high photovoltage of 0.96 V with an external quantum conversion efficiency of 65%.

  2. Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites

    Michael M. Lee, Joël Teuscher, Tsutomu Miyasaka, et al. · 2012 · Science · 10,639 cites

    The energy costs associated with separating tightly bound excitons (photoinduced electron-hole pairs) and extracting free charges from highly disordered low-mobility networks represent fundamental losses for many low-cost photovoltaic technologies. We report a low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight. This "meso-superstructured solar cell" exhibits exceptionally few fundamental energy losses; it can generate open-circuit photovoltages of more than 1.1 volts, despite the relatively narr

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