Surface Photovoltage Spectroscopy Study of Organo-Lead Perovskite Solar Cells.

@article{BarneaNehoshtan2014SurfacePS,
  title={Surface Photovoltage Spectroscopy Study of Organo-Lead Perovskite Solar Cells.},
  author={Lee Barnea-Nehoshtan and Saar Kirmayer and Eran Edri and Gary Hodes and David Cahen},
  journal={The journal of physical chemistry letters},
  year={2014},
  volume={5 14},
  pages={
          2408-13
        }
}
The field of organo-lead perovskite absorbers for solar cells is developing rapidly, with open-circuit voltage of reported devices already approaching the maximal theoretical voltage. Obtaining such high voltages on spun-cast or evaporated thin films is intriguing and calls for detailed investigation of the source of photovoltage in those devices. We present here a study of the roles of the selective contacts to methylammonium lead iodide chloride (MAPbI3-xClx) using surface photovoltage… 
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The Origin of Open-Circuit Voltage Losses in Perovskite Solar Cells Investigated by Surface Photovoltage Measurement.
TLDR
The important origin of Voc losses in methylammonium lead iodide perovskite (MAPI) based solar cells is reported, which results from undesirable positive charge accumulation at the interface between the perovscite photoactive layer and the PEDOT:PSS hole transport layer.
Insights into Planar CH3NH3PbI3 Perovskite Solar Cells Using Impedance Spectroscopy
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endence of hole conductor free formamidinium lead iodide perovskite based solar cells†
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Probing the energy levels of perovskite solar cells via Kelvin probe and UV ambient pressure photoemission spectroscopy.
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The results demonstrate the effectiveness of air photoemission and Kelvin probe contact potential difference measurements as a method of identifying the factors contributing to the open circuit voltage in a solar cell, as well as being an excellent way of probing the physics of new materials.
Temperature dependence of hole conductor free formamidinium lead iodide perovskite based solar cells
Organometal halide perovskite is a promising material in photovoltaic (PV) cells. Within a short time, its performance has increased dramatically to become a real competitor to silicon solar cells.…
Controlling the Band Gap to Improve Open-Circuit Voltage in Metal Chalcogenide based Perovskite Solar Cells
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Type-inversion as a working mechanism of high voltage MAPbBr3(Cl)-based halide perovskite solar cells.
TLDR
The importance of the contact metal on device performance in that contact engineering can also serve to control the carrier concentration in HaP is highlighted, as indicated by a narrower space charge region and a smaller minority carrier diffusion length.
Revealing lattice and photocarrier dynamics of high-quality MAPbBr3 single crystals by far infrared reflection and surface photovoltage spectroscopy
Hybrid organic-inorganic lead halide perovskite materials show great promise in a number of optoelectronic applications, including solar cells, light emitting diodes, and photodetectors.…
Electrical field profile and doping in planar lead halide perovskite solar cells
Hybrid lead halide perovskites (PVKs) have emerged as novel materials for photovoltaics and have rapidly reached very large solar to electricity power conversion efficiencies. As occurring with other…
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