研究目的
To summarize various reported bandgap engineering strategies for perovskite photovoltaics, focusing on impurity and pressure strategies, and to outline future research directions.
研究成果
The paper concludes that bandgap engineering strategies are crucial for optimizing the energy band structures of perovskites to enhance light harvesting and conversion. It highlights the importance of future work in exploring approaches to realize direct and gap size continually tunable perovskites for further enhancing solar cell performance.
研究不足
The paper discusses the challenges and limitations of each bandgap engineering strategy, such as the introduction of defects and carrier recombination in impurity-driven bandgap engineering, the difficulty in introducing stable intermediate bands, and the reversible effects of high-pressure approaches.
