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C&EN Global Enterprise, 2020
Solar cells made with sunlight-absorbing, semiconducting perovskite materials have been photovoltaic rock stars in recent years.
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Solar cells made with sunlight-absorbing, semiconducting perovskite materials have been photovoltaic rock stars in recent years.
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Stabilizing heterostructures of soft perovskite semiconductors
Science, 2019Strong perovskite interfaces The weak bonding in the crystal lattice of hybrid perovskites used in solar cells promotes surface decomposition and interferes with the formation of stable heterostructures with the charge carrier layers. Y. Wang et al.
Yanbo Wang +7 more
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Formation and Stability of Nontoxic Perovskite Precursor
Langmuir, 2019Strontium, calcium, and magnesium silicate hydrate phases are synthesized by the reaction between silica and solution of metal hydroxides. The kinetics of the reaction is recorded using a quartz crystal microbalance (QCM), continuously monitoring the change in frequency and dissipation energy.
Tahereh Mohammadi Hafshejani +6 more
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Mixed-Halide Perovskites with Stabilized Bandgaps
Nano Letters, 2017One merit of organic-inorganic hybrid perovskites is their tunable bandgap by adjusting the halide stoichiometry, an aspect critical to their application in tandem solar cells, wavelength-tunable light emitting diodes (LEDs), and lasers. However, the phase separation of mixed-halide perovskites caused by light or applied bias results in undesirable ...
Zhengguo Xiao +9 more
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Stability of Perovskites at the Surface Analytic Level
The Journal of Physical Chemistry Letters, 2018Organic-inorganic halide perovskites have attracted considerable attention in the past few years because of their remarkable performance in optoelectronic devices. However, long-term stability of the materials and devices remains the biggest challenge for realistic implementation of perovskite solar cells. Although significant efforts have been carried
Congcong Wang, Yongli Gao
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Thermodynamic Stability Trend of Cubic Perovskites
Journal of the American Chemical Society, 2017Stability is of central importance in current perovskite solar cell research and applications. Goldschmidt tolerance factor (t) recently provided qualitative guidance for experimentalists to engineer stable ABX3 perovskite by tuning effective ionic size with mixing cations or anions and for theorists to search emerging perovskites.
Qingde Sun, Wan-Jian Yin
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Science, 2019
Perovskites The perovskite materials used for solar cells and light-emitting diodes (which are black in color) are generally less stable at room temperature than the electronically inactive nonperovskite phases (which are yellow in color). Steele et al.
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Perovskites The perovskite materials used for solar cells and light-emitting diodes (which are black in color) are generally less stable at room temperature than the electronically inactive nonperovskite phases (which are yellow in color). Steele et al.
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Cubically stabilized perovskites
Ferroelectrics, 1990Abstract The effect of substituting, e.g., La for Pb in PZT or SN for Ti in BaTiO, is compared with the stabilization of the high temperature (cubic and tetragonal) phases of zirconia by adding Y2O3 or CaO. The supposed cause of parent-phase stabilization is discussed.
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Strain Control to Stabilize Perovskite Solar Cells
Angewandte Chemie, 2022AbstractPerovskite solar cells (PSCs) are rivaling most commercial photovoltaics in the aspect of efficiency and cost, while their intrinsic instability remains a major concern for their practical deployment. The presence of undesirable strain in PSCs during device fabrication and operation refers to the extension/narrowing of chemical bonds and ...
Hui Zhang, Nam‐Gyu Park
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Stability Strategies and Applications of Iodide Perovskites
SmallAbstractIodide perovskites have demonstrated their unprecedented high efficiency and commercialization potential, and their superior optoelectronic properties, such as high absorption coefficient, high carrier mobility, and narrow direct bandgap, have attracted much attention, especially in solar cells, photodetectors, and light‐emitting diodes (LEDs).
Yuchen Lei +8 more
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