About this Research Topic
Hybrid halide perovskites are a complex class of materials that have largely revolutionized the field of photovoltaics in the last few years, holding great promise as well for other opto-electronic applications such as light emitting diodes (LEDs) and photodetectors. What makes them so attractive is the unique combination of optical, electrical, and structural properties that have never before been attained for a solution-processable material. One of the peculiar and intriguing characteristics of hybrid perovskites is the formation process, through the self-assembly of two or more precursors. Complex chemical equilibria already exist in solution, where the solvated precursor species establishes a colloidal soft framework, significantly affecting the resulting material properties. In their solid state as well, the final material displays complex defect chemistry that evolves in time and under different working or environmental conditions; all are subjects of active research.
This Research Topic focuses on highlighting recent advances in the understanding of perovskite chemical interactions both in solution and in their solid state, including most promising and successful approaches toward the control of these interactions. We encourage researchers working in the fields to submit their latest original research findings, mini-reviews, or perspectives dealing with themes that include, but are not limited to:
- Hybrid perovskite formation through complexation chemistry
- Mastering the self-assembly process of perovskite toward controlled film formation
- Molecular, polymeric, ionic additives, etc. to simplify solution processability
- Defect chemistry of perovskite materials under various stimuli (illumination, bias, etc.) and exposure to moisture/environment
- Perovskite nanocrystal synthesis and/or self-assembly
- Low-dimensional perovskites: thin films and single crystals
Keywords: hybrid halide perovskite, complexation chemistry, defect chemistry, self-assembly, functional additives
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