Metal halide perovskite solar cells by modified chemical vapor deposition

Abstract

Metal halide perovskite solar cells are an emerging photovoltaic technology already exhibiting great potential. The main challenges at present that hinder the application of perovskite solar cells include scalable fabrication,...

In Situ and Operando Characterizations of Metal Halide Perovskite and Solar Cells: Insights from Lab-Sized Devices to Upscaling Processes

“…Perovskite thin films have been deposited through a variety of techniques, including spin-coating, − blade-coating, , inkjet printing, , spray, slot-die coating, thermal evaporation, rf-sputtering, − and chemical vapor deposition (CVD), , and atomic layer deposition (ALD). , However, advances on in situ characterizations focused on understanding crystallization and degradation processes from films and devices have been conducted almost exclusively by adopting wet methods, such as spin-coating, slot die, and blade-coating.…”

Tiny spots to light the future: advances in synthesis, properties, and application of perovskite nanocrystals in solar cells

“…Bulk-perovskite thin films can be prepared through a precursor solution containing the lead and A-site cation salts in the desired solvent, and deposited by a large variety of techniques such as spin-coating, 98,107 spray, 108 inkjet printing, 109,110 blade-coating, 111,112 thermal evaporation, 113,114 rfsputtering, [114][115][116][117][118] slot-die coating, 119 chemical vapor deposition, 120 and atomic layer deposition. 121 2D layered perovskite solar cells have been mainly deposited by solution processes, and also involve the preparation of a precursor solution.…”

Stable FAPbI3 hydrate structure by kinetics negotiation for solar cells

“…[11][12][13] Unfortunately, the structure of FAPbI 3 experienced a phase transition at room temperature, which converted it from a cubic (a-phase) to hexagonal (d-phase) structure, resulting in a rise in bandgap from ∼1.5 eV to ∼2.5 eV. [14][15][16][17] Even worse, the presence of water molecules could accelerate such a transition, which reduced the transition time from several hundred hours to only a few hours in a nitrogen gas atmosphere, causing a signicant reduction in the PCE of the device. [18][19][20] A large amount of research has been conducted to resolve this problem.…”