Selenium: A Unique Member in the Chalcogen Family for Conjugated Materials Used in Perovskite and Organic Solar Cells

Feng Qi; Francis R. Lin; Alex K.-Y. Jen

doi:10.1002/solr.202200156

Author(s)

Feng Qi
Francis R. Lin
Alex K.-Y. Jen

Related Research Unit(s)

Detail(s)

Original language	English
Article number	2200156
Journal / Publication	Solar RRL
Volume	6
Issue number	7
Online published	3 Apr 2022
Publication status	Published - Jul 2022

Link(s)

DOI	DOI https://doi.org/10.1002/solr.202200156 Final Published version
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Attachment(s)	Documents 98874593.pdf Post-print, 1.87 MB, PDF Publisher's Copyright Statement This is the peer reviewed version of the following article: Qi, F., Lin, F. R., & Jen, A. K-Y. (2022). Selenium: A Unique Member in the Chalcogen Family for Conjugated Materials Used in Perovskite and Organic Solar Cells. Solar RRL, 6(7), Article 2200156, which has been published in final form at https://doi.org/10.1002/solr.202200156. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85128052915&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(b9e85e1c-6632-42f2-9319-400ca7377eab).html

Abstract

Organic conjugated materials play an extremely important role in the development of perovskite and organic solar cells (PVSCs and OSCs). Among different molecular design strategies, the introduction of selenium is an efficient way to optimize material properties and improve the performance of solar cells. The benefits can be attributed to the looser electron cloud delocalization and more polarizable nature of selenium, which help enable stronger intermolecular Se···Se interaction and extended conjugation length, leading to enhanced charge carrier mobility and redshifted absorption in selenium-incorporated organic conjugated materials. Herein, the design of the selenium-incorporated materials applied in the PVSCs and OSCs to provide a systematic study on the relationship between chemical structures, material properties, and device performance is focused on. The future direction for further development of selenium-incorporated organic conjugated materials is also provided.