Large-area electrospray-deposited nanocrystalline CuXO hole transport layer for perovskite solar cells. Issue 74 (3rd October 2017)

• Record Type: Journal Article
• Authors: Bu, Ian Y. Y.; Fu, Yaw-Shyan; Li, Jian-Fu; Guo, Tzung-Fang
• Is Part Of: RSC advances. Volume 7:Issue 74(2017)
• Page Start: 46651
• Page End: 46656
• Publication Date: 2017-10-03
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra07725d
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : In this study, a fully scalable and cost-effective approach for fabricating PSCs using the combination of direct electrostatic spray deposition for (HTL and perovskite layer) and thermal evaporation on conductive substrates. Abstract : Spin-coating deposition is widely employed for the fabrication of perovskite solar cells (PSCs) due to its conformal coating ability and simple set-up. Although spin-coating deposition is a proven technique for obtaining high-performance PSCs, it is a single-substrate process with low throughput and is therefore unsuitable for commercial PSC production. Herein, we report an industrial-production-compatible electrospray deposition process for the preparation of the hole transport layer (HTL) and active layer in PSCs. Using electrosprayed Cu X O as the HTL, we fabricated a solar cell with a power conversion efficiency of 5.83%, a short-circuit current density of 17.22 mA cm 2, an open circuit voltage of 0.7 V, and a fill factor of 0.48. This device outperforms PSCs (with identical device structure) fabricated using a PEDOT:PSS film (efficiency: 4.01%).