About this Research Topic
This Research Topic covers lead-free halide perovskites, one of the most promising new generation optoelectronic materials, as they hold excellent properties such as a close-to ideal bandgap for single and tandem solar cells. Also, they show lower environmental toxicity in comparison to the predominant lead-based perovskites. Although some lead-free halide perovskites are theoretically expected to overcome lead-based perovskites in terms of optoelectronic properties, they still face many challenges involving processing conditions and stability.
In this Research Topic, we want to publish the latest strategies used to tackle the problems affecting the stability of lead-free halide perovskites. The topic will have a particular interest but not limited in the different approaches to prevent the degradation of lead-free halide perovskite in solar cell working condition. Similarly, the relevance of perovskite composition and the resulting properties in other optoelectronic devices will also be emphasized.
This Research Topic aims to promote the discussion on unanswered aspects involving lead-free halide perovskites. For example, while oxidation of Sn(II) is being proven by ever increasing research groups in the field, the working mechanisms of the additives used for this purpose are not fully understood yet. Also, what are the best strategies to obtain efficient and reproducible Sn-based perovskites? Are 2D materials the only way to achieve these goals? What implications has changed the composition of tin perovskites, and how does doping affect stability? Overall, this Research Topic aims to bridge the latest advances achieved in the field with the questions so far unexplored, while keeping an eye on future challenges that lead-free halide perovskites will face in the near term.
Potential topics include, but not limited to:
• Lead-free halide perovskite
• Tin halide perovskite
• Ruddlesden-Popper tin halide perovskite
Keywords: Lead-free halide perovskite, Solar cells, Light-emitting diodes, Perovskite solar cells, Solar energy, Renewable energy
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.