Low‐Temperature Synthesis of SnO2 Nanocrystals as Electron Transport Layers for High‐Efficiency CsPbI2Br Perovskite Solar Cells. Issue 4 (29th January 2023)

• Record Type: Journal Article
• Authors: Tian, Haoran; He, Jingjing; Liu, Xinyi; Li, Qing; Liu, Da; Shen, Benben; Yang, Shuang; Niu, Qiang; Hou, Yu
• Is Part Of: Small science. Volume 3:Issue 4(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-01-29
• Subjects: electron transport -- nanocrystals -- perovskite solar cells -- SnO2; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.5
• DOI: 10.1002/smsc.202200112
• Languages: English
• ISSNs: 2688-4046

Abstract

Abstract : Perovskite solar cells (PSCs) have recently become a hot topic in photovoltaics due to their high power conversion efficiency (PCE) and low‐cost processing. As a key component of PSCs, electron transport layers (ETLs) that play a vital role in efficient PSCs generally require high charge extraction ability, mobility, and easy fabrication. Herein, a simple route to obtain dispersion of tin oxide nanocrystals (SnO2 NCs) with uniform diameters and high stability as efficient ETLs for CsPbI2 Br solar cells is demonstrated. The champion device achieves a remarkable PCE of 16.22% with an open‐circuit voltage of 1.30 V. This work offers a facile and effective way to fabricate high‐performance ETL nanocrystals in PSCs. Abstract : A low‐temperature and controllable route to obtain dispersions of tin oxide nanocrystals (SnO2 NCs) with uniform diameters and high stability, as efficient electronic transport layers for CsPbI2 Br solar cells, is reported. The champion device achieves a remarkable power conversion efficiency of 16.22% with an open‐circuit voltage of 1.30 V.