Identifying Fundamental Limitations in Halide Perovskite Solar Cells. Academic Article uri icon

abstract

  • DOI: 10.1002/adma. 201505480 by defect levels,[12] interfacial states,[13] energetic disorder,[14] as well as first-order [15] and bimolecular recombination.[16] qVoc for perovskite solar cells is typically in the range of 0.9–1.1 eV at room temperature (q is the elementary charge). The small difference Eg− qVoc≈ 0.5 eV (at standard test conditions of one-sun irradiance, AM 1.5 G spectrum and cell temperature T= 298 K) compares favorably to other photovoltaic technologies, being lower than organic or dye-sensitized cells (≈ 0.7 eV), quantum-dot cells (≈ 0.8 eV), polycrystalline CdTe (≈ 0.6 eV), and only slightly higher than crystalline silicon (≈ 0.4 eV).[17] The small energy loss implicitly indicates a modest degree of both electronic disorder and recombination losses in halide perovskites, remarkable for a low-temperature solutionprocessed semiconductor. Our focus on the …

publication date

  • January 1, 2016