From Wide-Bandgap to Narrow-Bandgap Perovskite: Applications from Single-Junction to Tandem Optoelectronics

Area of Science:

• Materials Science
• Photovoltaics
• Renewable Energy

Background:

• Perovskite solar devices are rapidly advancing photoelectronic technologies.
• The tunable bandgap of perovskite materials is a key advantage, enabling diverse applications.
• Significant research focuses on optimizing perovskite solar device performance.

Purpose of the Study:

• To review efforts in advancing narrow and wide bandgap perovskite solar cell performance.
• To discuss challenges and solutions in perovskite solar cell optimization.
• To explore the development of all-perovskite tandem solar cells.

Main Methods:

• Precursor composition engineering to achieve specific bandgaps ( < 1.4 eV for narrow, > 1.7 eV for wide).
• Optimization strategies for both narrow and wide bandgap perovskite solar cells.
• Analysis of device performance and challenges.

Main Results:

• Achieved narrow bandgap (< 1.4 eV) and wide bandgap (> 1.7 eV) perovskite materials through precursor engineering.
• Demonstrated advancements in the performance of both narrow and wide bandgap perovskite solar cells.
• Identified key challenges hindering device optimization.

Conclusions:

• Optimized narrow and wide bandgap perovskite solar cells are crucial for all-perovskite tandem solar cells.
• Further research is needed to address remaining challenges for real-world applications.
• Tandem perovskite solar cells hold promise for future renewable energy solutions.