A composite nanostructured electron-transport layer for stable hole-conductor free perovskite solar cells: design and characterization

作者：Yu, Zhenhua; Qi, Fei; Liu, Pei; You, Sujian; Kondamareddy, Kiran Kumar; Wang, Changlei; Cheng, Nian; Bai, Sihang; Liu, Wei^*; Guo, Shishang^*; Zhao, Xing-zhong^*

来源：Nanoscale, 2016, 8(11): 5847-5851.

DOI：10.1039/c5nr09045h

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• IMPEDANCE
• BEHAVIOR
• TIO2

A novel composite nanostructured titanium dioxide (TiO2) based electron-transport layer (ETL) is designed by combining size blended nanoparticles (SBNP) and nanoarrays (NA) for efficient perovskite solar cell (PSC) applications. The composite nanostructured (SBNP + NA) ETL is successfully employed in hole-conductor free PSCs, there by achieving a stable device with a maximum efficiency of 13.5%. The improvement in the performance is attributed to the better charge transport and lower recombination in the SBNP + NA ETL. Despite the stable high efficiency, SBNP + NA ETL based PSCs are advantageous owing to their low cost, ease of all-solution fabrication process in an open environment and good reproducibility.

• 出版日期2016
• 单位武汉大学