研究目的
To develop a low-temperature process for TiO2 electron transport layer (ETL) for flexible perovskite solar cells (PSCs) by using oxygen plasma treatment to remove organic additives and improve charge transport.
研究成果
The oxygen plasma treatment successfully removes organic additives from low-temperature solution processed TiO2 layers, improving wettability and infiltration of the perovskite layer. This treatment also passivates oxygen vacancies in TiO2, enhancing charge transport and extraction, leading to improved photovoltaic performance and reduced hysteresis in PSCs. The method enables the fabrication of high-performance mesoporous structured PSCs at low temperatures, comparable to those processed at high temperatures.
研究不足
The study focuses on the low-temperature processing of TiO2 layers for PSCs but does not extensively explore the scalability of the oxygen plasma treatment for large-scale production. Additionally, the mechanical stability of flexible PSCs under extensive bending cycles beyond 1000 times is not investigated.
