Xie Haixia, Que Wenxiu
School of Science, Xi'an University of Architecture and Technology, Xi'an, China.
Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Institute of Advanced Energy Storage Electronic Materials and Devices, Xi'an Jiaotong University, Xi'an, China.
Front Chem. 2024 Jan 29;12:1361275. doi: 10.3389/fchem.2024.1361275. eCollection 2024.
Perovskite solar cells show great potential application prospects in the field of solar cells due to their promising properties. However, most perovskite solar cells that exhibit excellent photovoltaic performance typically require a carrier transport layer that necessitates a high-temperature annealing process. This greatly restricts the scalability and compatibility of perovskite solar cells in flexible electronics. In this paper, SnO nanoparticles with high crystallinity, good dispersibility and uniform particle size distribution are first prepared using a solvothermal method and dispersed in n-butanol solution. SnO electron transport layers are then prepared by a low-temperature spin coating method, and the photovoltaic characteristics of perovskite solar cells prepared with different SnO nanoparticles/n-butanol concentrations are studied. Results indicate that the rigid perovskite solar cell achieves the highest power conversion efficiency of 15.61% when the concentration of SnO nanoparticles/n-butanol is 15 mg mL. Finally, our strategy is successfully applying on flexible perovskite solar cells with a highest PCE of 14.75%. Our paper offers a new possibility for large-scale preparation and application of perovskite solar cells in flexible electronics in the future.
由于其具有良好的性能，钙钛矿太阳能电池在太阳能电池领域展现出巨大的潜在应用前景。然而，大多数表现出优异光伏性能的钙钛矿太阳能电池通常需要一个载流子传输层，而这需要高温退火工艺。这极大地限制了钙钛矿太阳能电池在柔性电子器件中的可扩展性和兼容性。在本文中，首先采用溶剂热法制备了具有高结晶度、良好分散性和均匀粒径分布的SnO纳米颗粒，并将其分散在正丁醇溶液中。然后通过低温旋涂法制备SnO电子传输层，并研究了用不同SnO纳米颗粒/正丁醇浓度制备的钙钛矿太阳能电池的光伏特性。结果表明，当SnO纳米颗粒/正丁醇的浓度为15 mg/mL时，刚性钙钛矿太阳能电池实现了15.61%的最高功率转换效率。最后，我们的策略成功应用于柔性钙钛矿太阳能电池，其最高功率转换效率为14.75%。我们的论文为未来钙钛矿太阳能电池在柔性电子器件中的大规模制备和应用提供了新的可能性。
