Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Enhancing Surface Modification and Carrier Extraction in Inverted Perovskite Solar Cells via Self-Assembled Monolayers

Gisung Kim
,
Hyojung Kim
,
Mijoung Kim
ORCID logo ,
Jaegwan Sin
,
Moonhoe Kim
,
Jaeho Kim
,
Haoran Zhou
,
Sung Ho Kang
,
Hye Min Oh
,
JungYup Yang
* ORCID logo
Version 1 : Received: 30 December 2023 / Approved: 30 December 2023 / Online: 3 January 2024 (03:45:39 CET)

A peer-reviewed article of this Preprint also exists.

Kim, G.; Kim, H.; Kim, M.; Sin, J.; Kim, M.; Kim, J.; Zhou, H.; Kang, S.H.; Oh, H.M.; Yang, J. Enhancing Surface Modification and Carrier Extraction in Inverted Perovskite Solar Cells via Self-Assembled Monolayers. Nanomaterials 2024, 14, 214. Kim, G.; Kim, H.; Kim, M.; Sin, J.; Kim, M.; Kim, J.; Zhou, H.; Kang, S.H.; Oh, H.M.; Yang, J. Enhancing Surface Modification and Carrier Extraction in Inverted Perovskite Solar Cells via Self-Assembled Monolayers. Nanomaterials 2024, 14, 214.

Abstract

The perovskite solar cells (PSCs) have been significantly improved by utilizing inorganic hole transporting layer (HTL), such as nickel oxide. Despite the promising properties, there are still limitations due to defects. Recently, research on self-assembled monolayers (SAM) is being actively conducted, which show promise in reducing defects and enhancing device performance. In this study, we successfully engineered a p-i-n perovskite solar cell structure utilizing HC-A1 and HC-A4 molecules. These SAM molecules were found to enhance the grain morphology and uniformity of the perovskite film, which are critical factors in determining optical properties and device performance. Notably, HC-A4 demonstrated superior performance due to its distinct hydrophilic properties with a contact angle of 50.3°, attributable to its unique functional groups. Overall, the HC-A4 applied film exhibited efficient carrier extraction properties, attaining a carrier lifetime of 117.33 ns. Furthermore, HC-A4 contributed the superior device performance with its favorable band alignment, achieving the highest device efficiency of 20%.

Keywords

Perovskite solar cells; self-assembled monolayers; hole-transporting layer; surface modification; charge extraction

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Download PDF

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0
Get PDF Cite Share 0
Bookmark BibSonomy Mendeley Reddit Delicious
×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.