Enhancing the wettability of PEDOT:PSS layer with plasma treatment method in perovskite solar cells

Miao Yu; Mingzhu Wang; Yang Zhang; Junze Shao; Xiaona Huang; Ruoyu Zhang; Kuo Cao; He Yu; Wanli Zhang

doi:10.1117/12.2511402

6 February 2019 Enhancing the wettability of PEDOT:PSS layer with plasma treatment method in perovskite solar cells

Miao Yu, Mingzhu Wang, Yang Zhang, Junze Shao, Xiaona Huang, Ruoyu Zhang, Kuo Cao, He Yu, Wanli Zhang

Proceedings Volume 10842, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Subdiffraction-limited Plasmonic Lithography and Innovative Manufacturing Technology; 1084210 (2019) https://doi.org/10.1117/12.2511402
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Organic-inorganic hybrid perovskite solar cells have been widely recognized as an excellent candidate for next-generation photovoltaic devices because of their easy processing and rapidly developing power conversion efficiency (PCE). Owing to the fact that the interface is sensitive to photoelectric conversion properties, many strategies are used to improve the interface wettability between perovskite precursor solution and the hole transport layer (HTL). In this study, we report a method of argon plasma treatment on the poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) layer which could effectively enhance the wettability because of the improvement in the chemical compositions and film morphologies of PEDOT:PSS. In contrast to untreated films, the wettability of PEDOT:PSS is increased by 3.3, 3.6 and 3.7 times based on the optimization of plasma power, treating time, and pressure, respectively. We also systematically described the timeliness of wettability from 0 to 8 hours after plasma treatment. The interface wettability shows a down trend with increasing storage time.

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Miao Yu, Mingzhu Wang, Yang Zhang, Junze Shao, Xiaona Huang, Ruoyu Zhang, Kuo Cao, He Yu, and Wanli Zhang "Enhancing the wettability of PEDOT:PSS layer with plasma treatment method in perovskite solar cells", Proc. SPIE 10842, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Subdiffraction-limited Plasmonic Lithography and Innovative Manufacturing Technology, 1084210 (6 February 2019); https://doi.org/10.1117/12.2511402

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KEYWORDS

Plasma treatment

Argon

Perovskite

Plasma

Solar cells

Interfaces

Atomic force microscopy

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